El Niño Is Underway, Satellite Observations Show

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Current Status and Forecasts

  • Official Declaration: NOAA forecasters officially declared the arrival of El Niño on June 11, 2026, noting that conditions are already present and expected to strengthen into the Northern Hemisphere winter of 2026–27.
  • Anticipated Strength: Models and researchers suggest the event could reach a moderate or strong phase by fall. Some forecasts indicate a high probability of a "very strong" or even "historic" event, with potential to rank among the strongest on record.
  • Satellite Observations: NASA’s Sentinel-6 Michael Freilich satellite has detected warm Kelvin waves moving eastward across the Pacific, a classic precursor and indicator of a developing El Niño.

Record-Breaking Ocean Warmth

  • Unprecedented Temperatures: Ocean surface temperatures reached record highs in June 2026, following an exceptionally warm May.
  • Compounding Factors: Scientists warn that these record-breaking sea temperatures, combined with the developing El Niño, are pushing the world into "uncharted waters" regarding climate instability.

Projected Global Impacts

The following risks have been identified across several sectors:

  • Food Security and Economy: The event arrives during a fragile period for global food security. Drought risks are high for major agricultural regions, potentially impacting tropical commodities such as coffee, cocoa, sugar, and palm oil. In Brazil, economists anticipate El Niño-related food price shocks could drive up inflation.
  • Extreme Weather: There are increased risks of heatwaves, severe droughts, and heavy rainfall. Specifically, India has warned of below-average monsoon rains, while Papua New Guinea faces potential food shortages due to drought and frost.
  • Marine Ecosystems: El Niño is expected to trigger marine heatwaves, which threaten West Coast species like salmon and squid and can lead to major ocean nutrient stress and coral bleaching.
  • Coastal Risks: The phenomenon may alter regional sea levels, worsening high-tide flooding in some coastal communities.
  • Tropical Cyclones: Conversely, El Niño may reduce Atlantic hurricane activity by increasing wind shear, though it often shifts storm patterns elsewhere.

Scientific and Historical Context

  • Climate Change Amplification: Researchers emphasize that human-driven global warming may amplify the risks of El Niño, making its effects—such as extreme heat and rainfall—more intense than in the past.
  • Recent ENSO Cycle: This event follows a weak and short-lived La Niña that ended in early 2025, which had temporarily slowed global sea-level rise. The current transition back to a strong El Niño follows 2024 being recorded as the warmest year on record.



El Niño Development, Forecasts, and Official Updates

ENSO: Recent Evolution, Current Status and Predictions

Article link | NOAA Climate Prediction Center | NOAA | September 28, 2026

NOAA's weekly update documents continuing El Niño conditions through observations of Pacific sea surface temperatures, subsurface heat, winds, and atmospheric circulation. It retains the September outlook showing a greater than 90% chance of a very strong event during Northern Hemisphere fall and winter 2026–27. This rolling document replaces the June 29 edition previously listed.
September 2026 ENSO Forecast: Quick Look and Technical Update

Article link | International Research Institute for Climate and Society | Columbia Climate School | September 21, 2026

IRI reports that all 22 participating forecast models project very strong El Niño conditions through winter 2026–27. The assessment describes substantial subsurface ocean warmth and an established atmospheric response, while noting that models differ on the eventual peak. This rolling forecast replaces the June edition previously listed.
Climate Prediction Center ENSO Diagnostic Discussion

Article link | NOAA Climate Prediction Center | NOAA | September 10, 2026

NOAA forecasts a greater than 90% chance of a very strong El Niño during fall and winter 2026–27. For October–December, it assigns a 75% probability to a three-month Relative Oceanic Niño Index of at least +2.5°C, which would exceed earlier events in its record beginning in 1950. These are forecasts rather than confirmation of the event's eventual peak. This entry replaces the June diagnostic discussion.
El Niño Set to Become Very Strong, Raising Risks of Extreme Weather Into 2027

Article link | World Meteorological Organization | WMO | September 3, 2026

WMO reports that El Niño is firmly established, with a near-100% forecast probability of continuing through February 2027. It warns of changing rainfall patterns, drought, flooding, and extreme heat, while emphasizing that regional impacts also depend on season, location, and other climate drivers, including the Indian Ocean Dipole.
Strong El Niño Expected to Intensify

Article link | World Meteorological Organization | WMO | July 31, 2026

WMO's August–October outlook anticipated further El Niño strengthening alongside exceptionally warm oceans and a developing positive Indian Ocean Dipole. The report explains how these combined influences can alter regional rainfall and temperature risks and calls for early preparation in agriculture, health, and disaster management.

Ocean Heat, Satellites, Sea Level, and Marine Ecosystems

August Was the World's Joint Hottest Month on Record, Pushing Global Temperatures Back Above 1.5°C Above Pre-Industrial Levels

Article link | Copernicus Climate Change Service | Copernicus / ECMWF | September 10, 2026

Copernicus reports that August 2026 tied July 2023 as the warmest month across all calendar months in its ERA5 dataset. Average sea surface temperatures outside the polar regions also tied their highest monthly value. The report links exceptional ocean warmth to long-term global heating and rapidly warming equatorial Pacific waters associated with El Niño.
How 2 US, European Satellites Are Studying Hurricanes During El Niño

Article link | NASA Jet Propulsion Laboratory | NASA/JPL | September 9, 2026

NASA explains how Sentinel-6 Michael Freilich and Sentinel-6B are measuring sea surface height during the developing El Niño. Their observations help scientists track the redistribution of ocean heat and improve the information available for hurricane forecasting, including research on rapid intensification.
El Niño Warming Pattern in the Pacific Ocean

Article link | European Union / Copernicus Marine Service | EU Space | August 26, 2026

A visualization using August 25 observations shows a distinct band of unusually warm surface water across the central and eastern equatorial Pacific. The image provides an updated illustration of the event's ocean-temperature pattern and a useful visual companion to earlier satellite observations.
El Niño Alters Marine Life in the Pacific

Article link | Lindsey Doermann | NASA Earth Observatory | August 10, 2026

NASA's PACE satellite observations reveal lower chlorophyll concentrations in the central equatorial Pacific in June 2026 compared with June 2025. Scientists explain how weakened upwelling reduces nutrient supplies and phytoplankton growth during El Niño, with consequences for marine food webs, fisheries, seabirds, and marine mammals.

Food Security, Drought, Water, and Economic Risks

As a Mighty El Niño Deepens Global Hunger, Early Action Pays Off

Article link | Anam Abbas et al. | World Food Programme | September 11, 2026

WFP describes early assistance and preparedness measures in countries including South Sudan, Chad, Madagascar, Malawi, and Guatemala. Examples include cash transfers, agricultural support, early-warning information, and contingency planning intended to reduce losses before droughts, floods, and disrupted harvests deepen food insecurity.
World Food Programme Ramps Up Preparedness and Response Plans as El Niño Threatens to Push Tens of Millions Into Acute Hunger

Article link | World Food Programme | WFP | August 5, 2026

WFP's initial analysis across 45 vulnerable countries estimates that El Niño-related shocks could push at least 49 million additional people into acute food insecurity by the end of 2027. This is a modeled risk estimate, not an observed hunger count. The assessment highlights how disrupted planting and harvest cycles can prolong humanitarian impacts beyond the event's climatic peak.

El Niño, Food Security, Crop Production, and Hunger Risks

How Colliding Crises Are Shaping Somalia's Hunger Emergency

Article link | Sylvie Njobati, Fatima Hirsi and Elizabeth Bryant | World Food Programme | September 29, 2026

WFP explains how expected El Niño-related flooding could compound conflict, displacement, earlier drought, and declining humanitarian funding. It describes preparations for the October–December rainy season and warns that damage to farming and grazing areas could worsen hunger while funding shortages reduce food assistance and nutrition treatment.
Somalia: Acute Food Insecurity Situation for July–September 2026 and Projection for October–December 2026

Article link | Integrated Food Security Phase Classification | IPC | September 23, 2026

IPC projects that 5.4 million people will face Crisis or worse acute food insecurity during October–December 2026, including approximately 1.5 million in Emergency. Expected flooding associated with El Niño and the Indian Ocean Dipole is a major driver. Under a plausible worst-case scenario of more severe flooding and displacement, internally displaced people in Baidoa face a risk of Famine; this is a conditional warning, not a declaration that famine is occurring.
Hunger and Malnutrition Crises Persist in Somalia as Projected Floods and Funding Shortfalls Threaten Vulnerable Populations

Article link | Federal Government of Somalia and United Nations | World Food Programme | September 23, 2026

This joint warning explains the humanitarian implications of the September IPC assessment. It estimates that 1.92 million children under five will require acute-malnutrition treatment between July 2026 and June 2027. Anticipated flooding could disrupt livelihoods, displace households, and restrict access to health and nutrition services, while inadequate funding limits the response.
El Niño, Shipping Disruptions and Food Aid Funding Cuts Collide to Deepen Dire Global Hunger Crisis

Article link | International Rescue Committee | IRC | September 18, 2026

IRC warns that drought and flooding could combine with disrupted shipping, rising food and fertilizer costs, and reduced humanitarian funding to worsen hunger. Its analysis indicates that poor rains could push an additional 700,000 people in El Salvador into hunger. The organization calls for early assistance in countries including Guatemala, El Salvador, Somalia, and Kenya.
El Niño Impacts Leads to Poor Production Across East Africa's High Potential Zones

Article link | Famine Early Warning Systems Network | FEWS NET | September 11, 2026

FEWS NET anticipates poor harvests in several important East African agricultural areas following prolonged dry spells and rainfall deficits. It identifies production concerns in Kenya, Uganda, Sudan, South Sudan, and Ethiopia. Wetter conditions later in the year could benefit some crops but also increase flooding, waterlogging, and disruption to planting and harvesting.
Supply Concerns Drive FAO Food Price Index Higher in August

Article link | Food and Agriculture Organization | FAO | September 4, 2026

FAO reports that international food commodity prices rose 1.9% in August. El Niño-related production concerns contributed to pressure on vegetable oil and sugar prices. It forecasts lower global rice output, partly because of El Niño-associated weather, but still expects historically substantial cereal production and stocks. The report provides evidence of market pressures while distinguishing regional food insecurity from aggregate global supply.
FAO GIEWS Country Brief: Angola

Article link | Global Information and Early Warning System on Food and Agriculture | FAO | September 3, 2026

FAO warns that reduced harvests, elevated food costs, and weaker agricultural incomes could aggravate food insecurity in late 2026 and early 2027. Forecasts indicate an increased likelihood of below-average rainfall during the first half of the 2026–27 cropping season, linked to El Niño. This creates a risk of further agricultural stress following an already difficult season. This country-brief URL is updated periodically.
FAO GIEWS Country Brief: Ecuador

Article link | Global Information and Early Warning System on Food and Agriculture | FAO | September 2, 2026

FAO anticipates below-average maize and paddy production after dry weather and constraints on planting. Looking ahead, above-average rainfall associated with El Niño raises the risk of flooding and river overflows affecting coastal maize and rice areas during September–December. Cereal import requirements are forecast to remain above average in 2026–27. This country-brief URL is updated periodically.

Flooding, Coastal Hazards, Hurricanes, and Strong Winds

Governor Newsom Proclaims State of Emergency to Bolster Statewide El Niño Preparedness, Protect California

Article link | Office of Governor Gavin Newsom | State of California | September 21, 2026

California's preparedness announcement identifies potential hazards from repeated heavy rainfall, strong winds, mountain snow, flooding, landslides, debris flows, and large coastal waves during the 2026–27 winter. It describes advance positioning of flood-response supplies and equipment. The declaration is a precautionary action addressing possible impacts, rather than a prediction that every location will experience severe flooding.
Prognostic Discussion for Long-Lead Seasonal Outlooks

Article link | Anthony Artusa | NOAA Climate Prediction Center | September 17, 2026

NOAA favors wetter-than-normal conditions across much of the southern United States and along portions of the Atlantic coast during fall and winter, associated with the subtropical jet stream and storm track. Winter precipitation probabilities also favor wetter conditions in California. These seasonal rainfall probabilities provide context for flood preparedness but do not forecast individual floods, storm dates, or damaging wind speeds. This URL is updated monthly.
Prepare Your Coastal Property for El Niño

Article link | California Coastal Commission | State of California | Updated September 11, 2026

The Commission discusses the combined coastal hazards of elevated sea levels, high tides, storm surge, large waves, and erosion during the 2026–27 El Niño. It explains why coastal properties can face greater flooding and wave damage when several factors coincide, and provides preparedness resources for communities, shoreline properties, and bluff-top areas.
Seasonal Climate Outlook: September–November 2026

Article link | Earth Sciences New Zealand | Earth Sciences New Zealand / NIWA | September 2, 2026

New Zealand's outlook anticipates prevailing westerly airflow, periods of unusually windy weather, and increased temperature variability as El Niño influences spring conditions. Heavy rainfall is more likely in southern and western areas, with above-normal seasonal rainfall strongly favored for the west of the South Island. Other regions face reduced rainfall and increased drying, illustrating how wind and rainfall hazards vary within the same country.
The Greater Horn of Africa Is Expected to Experience a Wetter-Than-Normal October–December 2026 Season as El Niño Strengthens

Article link | IGAD Climate Prediction and Applications Centre | ICPAC | August 18, 2026

ICPAC forecasts enhanced October–December rainfall associated with El Niño and a positive Indian Ocean Dipole. It assigns a 90% probability of wetter-than-normal conditions to southern Ethiopia, central and southern Somalia, and northeastern Kenya. This regional rainfall outlook supports flood preparedness, but the probability of above-normal rainfall should not be interpreted as an equivalent probability of flooding at a particular location.
NOAA Maintains Prediction for Below-Normal Atlantic Hurricane Season

Article link | National Oceanic and Atmospheric Administration | NOAA | August 6, 2026

NOAA explains that El Niño-related wind shear is expected to suppress Atlantic hurricane activity while conditions favor above-normal activity in the eastern and central Pacific. The update retains an eastern Pacific forecast of 15–22 named storms and a central Pacific forecast of 5–13 tropical cyclones, including depressions. These are full-season basin totals, not predictions of landfalls or storms remaining after August.

Drought, Rainfall Deficits, and Water Security

El Niño Will Unleash Multiple Hazards in South-West Indian Ocean Region

Article link | World Meteorological Organization | WMO | October 1, 2026

WMO summarizes the regional outlook for October 2026–March 2027, identifying increased drought risk in South Africa, southern and central Mozambique, Malawi, and southwestern Madagascar. Drought and above-normal temperatures could reduce agricultural productivity, damage pasture, and strain water supplies. Risks vary within countries: northern Malawi and northern and eastern Madagascar may experience wetter conditions.
El Niño Strength Doesn't Always Match Impact on Australia

Article link | Bureau of Meteorology | Australian Government | Updated September 28, 2026

Australia's Bureau of Meteorology explains that El Niño can increase drying and drought risk, but its strength does not directly determine local impacts. The article describes below-average rainfall prospects for parts of southeastern Australia alongside wetter prospects elsewhere. Existing water storage, earlier rainfall, surrounding ocean temperatures, and other climate influences affect how seriously communities experience water shortages.
Global Weather Hazards: Drought Expanding in Parts of Central America

Article link | Famine Early Warning Systems Network | FEWS NET | Outlook period September 17–23, 2026

This weekly hazards assessment identifies expanding drought in parts of Central America alongside abnormal heat affecting several tropical regions. It provides evidence of developing conditions during the strengthening El Niño, complementing longer-range forecasts. Because this is a dated weekly assessment, it should be retained as a historical snapshot rather than presented as a current warning.
As El Niño Strengthens, What Could It Mean for Food Production in South America?

Article link | Cassidy Ochoa | FEWS NET | September 14, 2026

This analysis discusses projected rainfall deficits in parts of Colombia, Venezuela, Brazil, and Bolivia, with potential consequences for rain-fed agriculture. It highlights the vulnerability of crops such as potatoes and quinoa in Bolivia's Altiplano. Although published in September, the article draws on July-issued forecast guidance, so its projections should be read alongside newer regional outlooks.

Article link | Famine Early Warning Systems Network | FEWS NET | September 2026

FEWS NET anticipates an erratic start to Zimbabwe's November–March rainy season, below-average rainfall, and above-average temperatures through at least January. Rainfall deficits could limit pasture and water replenishment, while agricultural uncertainty and rising staple-food prices threaten household food access. The report also describes preparations including drought-tolerant crops, fodder storage, and measures to strengthen grain supplies.
Historically Poor Kiremt Rainfall Linked to El Niño Drives Meher Crop Losses

Article link | Famine Early Warning Systems Network | FEWS NET | August 2026

FEWS NET reports severe rainfall deficits and exceptional drought conditions across much of Ethiopia's kiremt-growing areas. Poor rains have delayed planting and damaged crop conditions, particularly in northern, central, and eastern areas. The outlook connects these observed deficits with anticipated harvest losses and food-security pressures extending into January 2027.


El Niño Development, Forecasts, and Official Updates

ENSO: Recent Evolution, Current Status and Predictions

Article link | NOAA Climate Prediction Center | NOAA | June 29, 2026

NOAA's weekly ENSO update summarizes observed ocean-atmosphere changes, model forecasts, and the likely persistence of El Niño into winter.
Super El Niños May Lose Their Punch in a Warming World

Article link | Geophysical Research Letters | Phys.org | June 16, 2026

Researchers modeled how intense eastern Pacific El Niño events may change as the global climate warms.
El Niño Forms, Expected to Strengthen, Say NOAA Forecasters

Article link | NOAA | NOAA | June 11, 2026

NOAA declared that El Niño had formed and forecast that the event could strengthen into a moderate or strong phase by fall and winter.
Climate Prediction Center ENSO Diagnostic Discussion

Article link | NOAA Climate Prediction Center | NOAA | June 11, 2026

NOAA's official ENSO discussion states that El Niño conditions are present and expected to strengthen into the Northern Hemisphere winter of 2026–27.
Seasonal Forecasts Point Toward Large El Niño Event

Article link | Copernicus Climate Change Service | Copernicus | June 10, 2026

Copernicus seasonal forecasts show a strong signal for a large El Niño event developing later in 2026.
What Is Godzilla El Niño?

Article link | The Conversation | Phys.org | June 4, 2026

Scientists explain why dramatic labels like “Godzilla El Niño” can be misleading, emphasizing that El Niño raises risks rather than guaranteeing specific outcomes.
A Very Strong El Niño Is Approaching

Article link | The Conversation | Phys.org | June 3, 2026

Researchers describe what a very strong El Niño could mean for drought, rainfall, heat, and regional climate impacts around the world.
Warming El Niño Set to Return in Mid-2026

Article link | AFP | Phys.org | April 24, 2026

The World Meteorological Organization said El Niño was likely to return in mid-2026, with potential impacts on global heat and rainfall patterns.
El Niño Season Predicted to Start as Early as Next Month

Article link | World Meteorological Organization | Phys.org | April 24, 2026

WMO forecasts suggested that El Niño could begin as early as May to July 2026 as tropical Pacific sea-surface temperatures rose rapidly.
Simple Ocean-Based Model Forecasts a Powerful El Niño

Article link | University of Hawaiʻi | Phys.org | April 21, 2026

Researchers report that an ocean-based ENSO model forecasts a powerful El Niño, offering useful warning for governments and communities.
Pacific Ocean Warming Signals Possible Return of Strong El Niño

Article link | Met Office | Met Office | April 15, 2026

The UK Met Office explains signs of tropical Pacific warming and why an emerging El Niño could affect weather patterns far beyond the Pacific.
El Niño Prediction Based on Weather Forecast and Geographical Time-Series Data

Article link | Viet Trinh et al. | arXiv | April 5, 2026

Researchers proposed a deep-learning framework using weather forecasts and geographical time-series data to improve El Niño prediction.
Climate Network and Complexity-Based ENSO Forecast for 2026

Article link | Josef Ludescher et al. | arXiv | February 16, 2026

Researchers tested climate-network and complexity methods for forecasting the 2026 ENSO state, showing how difficult early El Niño prediction can be.
Official NOAA CPC ENSO Probabilities

Article link | NOAA Climate Prediction Center | NOAA | June 2026

NOAA's probability outlook shows El Niño strongly favored through winter, based on climate models, observations, and expert assessment.
Official NOAA CPC ENSO Strength Probabilities

Article link | NOAA Climate Prediction Center | NOAA | June 2026

NOAA's ENSO strength outlook estimates the chances of weak, moderate, strong, and very strong El Niño conditions across upcoming seasons.
ENSO Forecast

Article link | International Research Institute for Climate and Society | Columbia Climate School | June 2026

IRI provides probabilistic ENSO forecasts using model guidance and observed Pacific ocean-atmosphere conditions.
Experimental Seasonal Forecasts

Article link | NOAA Geophysical Fluid Dynamics Laboratory | NOAA | June 2026

NOAA GFDL's SPEAR forecast system shows model projections for ENSO development, including uncertainty in future El Niño strength.
El Niño Is Underway, Satellite Observations Show

Article link | NASA | Phys.org | June 21, 2026

NASA satellite observations show that El Niño conditions are developing, with sea-surface-height patterns indicating changes in the tropical Pacific.
El Niño Is Underway

Article link | NASA Earth Observatory | NASA | June 18, 2026

NASA Earth Observatory reports that Sentinel-6 Michael Freilich detected higher-than-normal sea surfaces in the central and eastern Pacific as El Niño strengthened.
El Niño Arrives and Could Rank Among Strongest Events

Article link | AFP | Phys.org | June 13, 2026

Scientists warned that the newly declared El Niño could become very strong, with potential global effects on drought, rainfall, and heat.
El Niño Is Here and Scientists Fear It’ll Be Big, Bad and Costly

Article link | Associated Press | Phys.org | June 11, 2026

Scientists cautioned that the 2026 El Niño could become one of the strongest on record and bring major economic and humanitarian impacts.
Odds Climb for Record El Niño as Models Predict Strong Warming

Article link | AFP | Phys.org | June 10, 2026

Climate model forecasts raised the odds of a major El Niño event, with scientists warning of possible impacts on heat, rainfall, drought, and food systems.
Are We Heading Toward a Super El Niño in 2026?

Article link | Zero Carbon Analytics | Zero Carbon Analytics | 2026

Analysts summarize the evidence for a possible strong El Niño and explain how climate change can amplify its risks.
Current ENSO Alert System Status

Article link | NOAA Climate Prediction Center | NOAA | 2026

NOAA's ENSO advisory page provides official updates on whether El Niño, La Niña, or neutral conditions are present.
NOAA El Niño and La Niña Current Conditions

Article link | NOAA Climate Prediction Center | NOAA | 2026

NOAA tracks weekly sea surface temperature, wind, cloud, and subsurface ocean conditions across the tropical Pacific.

Ocean Heat, Satellites, Sea Level, and Marine Ecosystems

Ocean Surface Temperatures Hit Record High for June

Article link | The Guardian | The Guardian | July 1, 2026

Ocean surface temperatures reached record levels for June as scientists warned that extreme ocean warmth and developing El Niño conditions could intensify global climate risks.
Record Sea Temperatures in June Push World Into Uncharted Waters

Article link | Financial Times | Financial Times | July 1, 2026

Global sea temperatures surged to record June levels, raising concern that El Niño and long-term ocean warming may amplify storms, heat waves, and climate instability.
Ocean Health Bulletin: El Niño June 2026

Article link | Copernicus Marine Service | Copernicus | June 22, 2026

Copernicus Marine reports above-average sea surface temperatures in the central and eastern equatorial Pacific as climate scientists confirm El Niño conditions.
Explainer: Why a Strong El Niño Leaves Tropical Commodities Exposed

Article link | Reuters | Reuters | June 18, 2026

Reuters explains why crops such as coffee, cocoa, sugar, and palm oil are vulnerable to rainfall shifts linked to strong El Niño events.
El Niño Is Back, and Ocean Temperatures Are Already Near Record Highs

Article link | The Conversation | Phys.org | June 15, 2026

A climate scientist explains how El Niño can trigger marine heatwaves and disrupt fisheries, corals, and ocean ecosystems.
El Niño and Large Marine Heatwave Could Affect West Coast Species

Article link | NOAA Fisheries | NOAA | June 12, 2026

NOAA Fisheries explains how El Niño and a large marine heatwave may affect salmon, squid, seabirds, and other West Coast marine species.
Surging Tropical Pacific Ocean Surface Temperatures and Early European Heatwave

Article link | Copernicus Climate Change Service | Copernicus | June 11, 2026

Copernicus reports rapid warming in the tropical Pacific as the ocean shifts toward El Niño conditions, alongside early-season European heat extremes.
Second-Highest Surface Air and Sea Surface Temperatures for May Globally

Article link | Copernicus Climate Change Service | Copernicus | June 10, 2026

Copernicus reported exceptional tropical Pacific warmth in May as the equatorial Pacific continued its transition toward El Niño.
Sea Surface Height Anomaly, 2026

Article link | NASA Scientific Visualization Studio | NASA | June 9, 2026

NASA visualizations show sea surface height anomalies linked to warmer water and developing El Niño conditions in the eastern equatorial Pacific.
NASA Satellites Reveal Major Ocean Nutrient Stress

Article link | NASA | Phys.org | June 8, 2026

NASA satellite analysis finds ocean nutrient stress linked to warming waters and major climate cycles including El Niño and the Pacific Decadal Oscillation.
International Sea Level Satellite Observes El Niño Precursor

Article link | Jet Propulsion Laboratory | NASA/JPL | June 2, 2026

JPL imagery shows a warm Kelvin wave moving eastward across the Pacific, a classic oceanic precursor to El Niño development.
How Does El Niño Impact Atlantic Hurricane Season?

Article link | NOAA Atlantic Oceanographic and Meteorological Laboratory | NOAA | June 2, 2026

NOAA explains how El Niño can increase wind shear over the Atlantic and reduce the odds of some tropical cyclone development.
NASA-European Sea Level Mission Homes in on El Niño

Article link | Jet Propulsion Laboratory | NASA/JPL | May 27, 2026

NASA and European partners report that Sentinel-6 observed warm Kelvin waves crossing the Pacific ahead of a likely El Niño.
A Giant Warm Wave Is Crossing the Pacific

Article link | NASA | Phys.org | May 27, 2026

Satellite data show a warm Kelvin wave moving eastward across the Pacific, signaling ocean changes that often precede El Niño.
What Scientists Know About a Potential Super El Niño

Article link | AFP | Phys.org | May 22, 2026

Scientists discuss the evidence for a possible strong El Niño, including rising Pacific sea temperatures and a large reservoir of subsurface heat.
El Niño and High Tide Flooding, a Possible Double Whammy

Article link | NOAA Ocean Service | NOAA | May 15, 2026

NOAA warns that El Niño could worsen high-tide flooding in some coastal communities by altering regional sea levels and storm patterns.
Second-Highest Sea Surface Temperatures Recorded During Third-Warmest April Globally

Article link | Copernicus Climate Change Service | Copernicus | May 8, 2026

Copernicus reported near-record sea surface temperatures and tropical Pacific marine heatwaves as the ocean moved toward El Niño conditions.
West Coast Waters Experiencing Another Large Marine Heatwave

Article link | NOAA Fisheries | NOAA | March 3, 2026

NOAA scientists tracked a large West Coast marine heatwave that could interact with El Niño to affect ecosystems and fisheries.
NASA Analysis Shows La Niña Limited Sea Level Rise in 2025

Article link | Jet Propulsion Laboratory | NASA/JPL | January 29, 2026

NASA analysis found that La Niña conditions affected rainfall and temporarily slowed global mean sea level rise in 2025.
Daily Global Sea Surface Temperatures Break Records

Article link | Copernicus Climate Change Service | Copernicus | July 2026

Copernicus reports record daily sea surface temperatures and warns that El Niño and ocean heat could contribute to further climate extremes.
Annual High Tide Flooding Outlook

Article link | NOAA Tides and Currents | NOAA | 2026

NOAA's high-tide flooding outlook explains how sea level, tides, storms, and ENSO conditions can influence coastal flooding risk.
Sentinel-6 Michael Freilich Mission

Article link | NASA | NASA | NASA

NASA describes the Sentinel-6 Michael Freilich satellite mission, which measures sea surface height and helps monitor El Niño and global sea level.
Sentinel-6 Michael Freilich Stories

Article link | Jet Propulsion Laboratory | NASA/JPL | NASA/JPL

JPL provides mission information and updates on the satellite used to observe sea level patterns linked to El Niño development.
El Niño and Ocean Heat Content

Article link | NOAA National Centers for Environmental Information | NOAA | 2026

NOAA ocean heat content data help researchers track subsurface warming that can fuel El Niño development and marine heatwaves.
El Niño and Subsurface Pacific Heat

Article link | NOAA Pacific Marine Environmental Laboratory | NOAA | NOAA

NOAA's Tropical Atmosphere Ocean array measures sea temperature, winds, and subsurface heat across the equatorial Pacific, supporting ENSO monitoring.
TAO/TRITON Tropical Pacific Observing System

Article link | NOAA Pacific Marine Environmental Laboratory | NOAA | NOAA

NOAA's tropical moored buoy system provides ocean-atmosphere measurements central to detecting El Niño and La Niña changes.

Food Security, Drought, Water, and Economic Risks

India Warns of Below-Average July Monsoon Rains After Dry June

Article link | Reuters | Reuters | June 30, 2026

Indian forecasters warned that strengthening El Niño conditions could suppress monsoon rainfall, threatening crop planting, water supplies, and food security.
El Niño Is Coming. At the FAO We Know Where Drought Will Hit Hardest

Article link | Reuters | Reuters | June 29, 2026

FAO experts warned that the 2026 El Niño is arriving during a fragile period for global food security, with drought risks concentrated in vulnerable farming regions.
Papua New Guinea at Risk of Food Shortages as El Niño Brings Frost and Drought

Article link | The Guardian | The Guardian | June 25, 2026

El Niño-linked drought and frost threatened food gardens and water supplies in Papua New Guinea, raising concerns about hunger and rural hardship.
Economists See El Niño Lifting Brazil Inflation

Article link | Reuters | Reuters | June 24, 2026

Economists warned that El Niño-related drought and food price shocks could raise Brazil's inflation in 2026 and 2027.
Summer’s Silent Killer: Why the World’s Heat Waves Are a Global Risk

Article link | Phys.org | Phys.org | June 23, 2026

Article explains how El Niño can add to long-term global warming and raise risks of extreme heat, drought, or heavy rainfall in some regions.
El Niño Is Coming. Here Is Where the Risks to Agriculture Are Highest

Article link | FAO | Food and Agriculture Organization | June 22, 2026

FAO maps regions where El Niño-linked drought could threaten crops and pasturelands, highlighting risks to food systems already stressed by climate shocks.
Emerging 2026 El Niño: Potential Implications for Agriculture and Food Security

Article link | ReliefWeb | ReliefWeb | June 18, 2026

Humanitarian agencies assessed how the emerging 2026 El Niño could affect crops, livestock, food security, and anticipatory action planning.
El Niño Expected to Trigger Severe Global Droughts

Article link | IHE Delft Institute for Water Education | IHE Delft | June 17, 2026

Water experts warned that El Niño could reduce rainfall, river flows, and reservoir levels in drought-prone regions during the 2026–27 season.
Potentially Historic El Niño to Come, Analysis Shows Humanitarian Toll

Article link | Joint Research Centre | European Commission | June 15, 2026

European analysts warn that a potentially historic El Niño could worsen drought, flood, heat, and storm conditions in vulnerable regions.
UN Warns World to Prepare for El Niño Extreme Weather

Article link | AFP | Phys.org | June 2, 2026

The World Meteorological Organization warned that El Niño could increase risks of heat waves, drought, heavy rainfall, and other weather extremes.
A Strong El Niño May Be Imminent. Climate Change Will Make Its Effects Worse

Article link | Reuters | Reuters | June 3, 2026

Reuters explains how a developing El Niño could combine with climate change to raise global temperatures and worsen weather extremes.
El Niño May Return in 2026 and Make Planet Even Hotter

Article link | AFP | Phys.org | March 2, 2026

Early forecasts suggested El Niño could return in 2026 and add short-term warming on top of long-term human-driven climate change.
The 2026 El Niño and the Risk to Crops and Food Prices

Article link | Wikifarmer | Wikifarmer | 2026

Article explains how El Niño can affect rainfall, crops, livestock, and food prices in major agricultural regions.
El Niño and Global Food Security

Article link | Food and Agriculture Organization | FAO | FAO

FAO provides resources on how El Niño affects crops, livestock, fisheries, food prices, and early warning systems.
El Niño and Disaster Preparedness

Article link | United Nations Office for the Coordination of Humanitarian Affairs | OCHA | 2026

OCHA tracks humanitarian risks from El Niño-related drought, flooding, storms, and food insecurity in vulnerable countries.
El Niño and Anticipatory Action

Article link | Anticipation Hub | Anticipation Hub | 2026

Anticipation Hub collects early action resources for climate shocks, including El Niño-related drought, floods, and food security crises.
El Niño and Public Health Risks

Article link | World Health Organization | WHO | WHO

WHO summarizes health risks linked to El Niño, including heat stress, infectious disease, food insecurity, and disaster impacts.
El Niño and Humanitarian Early Warning

Article link | Famine Early Warning Systems Network | FEWS NET | 2026

FEWS NET monitors food security risks that can worsen during El Niño-related droughts, floods, and crop failures.
El Niño and Water Security

Article link | UN-Water | United Nations | 2026

UN-Water provides resources on water scarcity, drought, floods, and climate variability, including risks heightened during El Niño events.
El Niño and Drought Monitoring

Article link | National Integrated Drought Information System | NOAA | 2026

NOAA's drought portal provides monitoring and outlook tools for drought risks that can be influenced by El Niño and other climate patterns.
El Niño and Flood Risk

Article link | National Weather Service | NOAA | NOAA

The National Weather Service provides flood safety information relevant to regions where El Niño can raise odds of heavy precipitation.
El Niño and Heat Risk

Article link | National Weather Service | NOAA | NOAA

NOAA provides heat safety guidance for periods when El Niño and long-term warming can increase the odds of extreme heat in some regions.
El Niño and Pacific Island Climate Impacts

Article link | Pacific Climate Change Portal | Pacific Regional Environment Programme | 2026

Pacific climate resources track drought, rainfall, and food security risks that can intensify across island communities during El Niño.
El Niño and African Climate Risk

Article link | IGAD Climate Prediction and Applications Centre | ICPAC | 2026

ICPAC provides climate outlooks for East Africa, where El Niño can shift rainfall patterns and increase flood or drought risk.
El Niño and Southern Africa Food Security

Article link | Southern African Development Community | SADC | 2026

SADC climate and food security resources help track regional risks from El Niño-linked drought and rainfall deficits.
El Niño and Peru Coastal Waters

Article link | SENAMHI | Government of Peru | 2026

Peru's weather and hydrology service monitors coastal rainfall, temperature, and flood risks that can be affected by eastern Pacific El Niño warming.
El Niño and Global Precipitation Patterns

Article link | NASA Global Precipitation Measurement Mission | NASA | NASA

NASA's precipitation mission helps track rainfall changes that may be influenced by El Niño-driven shifts in atmospheric circulation.

Weather, Climate, Health, and Hazard Impacts

Climate Patterns May Shape Where Violent Conflict Risks Are Amplified

Article link | Phys.org | Phys.org | May 11, 2026

Researchers examined how ENSO and the Indian Ocean Dipole may influence climate stresses that intersect with conflict risk in vulnerable regions.
El Niño and Climate Change

Article link | Carbon Brief | Carbon Brief | Carbon Brief

Carbon Brief explains how El Niño works, how it affects global weather, and what scientists know about links between ENSO and climate change.
El Niño, La Niña, and the Southern Oscillation

Article link | Met Office | Met Office | Met Office

The Met Office explains how El Niño and La Niña form in the tropical Pacific and how they influence weather patterns worldwide.
El Niño and La Niña: What They Mean for Weather

Article link | NOAA Education | NOAA | NOAA

NOAA Education provides a plain-language explanation of El Niño, La Niña, and how tropical Pacific changes affect global weather.
El Niño and Climate Services

Article link | World Meteorological Organization | WMO | 2026

WMO explains how climate services convert El Niño forecasts into warnings for agriculture, health, water, energy, and disaster preparedness.
El Niño and Global Temperature Records

Article link | NASA Goddard Institute for Space Studies | NASA | 2026

NASA temperature datasets help scientists evaluate how El Niño events combine with long-term warming to influence global temperature records.

Recent ENSO History, 2023–2025

A Subtle Return of La Niña

Article link | NASA | Phys.org | December 16, 2025

NASA reported a weak La Niña in late 2025, setting the stage for later monitoring of tropical Pacific changes toward El Niño.
Sentinel-6B Launches to Extend Sea Level Measurements

Article link | Jet Propulsion Laboratory | NASA/JPL | November 16, 2025

NASA and partners launched Sentinel-6B to continue precise sea-level measurements used in climate, ocean, and El Niño monitoring.
April 2025 ENSO Update: La Niña Has Ended

Article link | Emily Becker | NOAA Climate.gov | April 10, 2025

NOAA reported that the short-lived La Niña had ended and that the tropical Pacific returned to ENSO-neutral conditions.
March 2025 ENSO Update: Neutral Conditions Expected Soon

Article link | Emily Becker | NOAA Climate.gov | March 13, 2025

NOAA explained why forecasters expected La Niña to fade and neutral conditions to return in spring 2025.
February 2025 La Niña Update: La Niña Today, Gone Tomorrow?

Article link | Emily Becker | NOAA Climate.gov | February 13, 2025

NOAA described a weak, short-lived La Niña and its expected transition back toward neutral Pacific conditions.
La Niña Is Here

Article link | NASA Earth Observatory | NASA | February 7, 2025

NASA explained the weak La Niña that emerged in the tropical Pacific after the 2023–24 El Niño faded.
2024 Was the Warmest Year on Record

Article link | NASA Earth Observatory | NASA | January 11, 2025

NASA reported that 2024 was the warmest year on record, with the previous El Niño contributing to exceptional global heat.
January 2025 Update: La Niña Is Here

Article link | Emily Becker | NOAA Climate.gov | January 9, 2025

NOAA announced that La Niña conditions had emerged, though the event was expected to remain weak.
December 2024 ENSO Update: Party Time, Excellent

Article link | Emily Becker | NOAA Climate.gov | December 12, 2024

NOAA discussed neutral ENSO conditions and the uncertain outlook after the 2023–24 El Niño.
November 2024 ENSO Update: Ask Me Anything

Article link | Emily Becker | NOAA Climate.gov | November 14, 2024

NOAA answered ENSO questions as forecasters watched for possible weak La Niña development.
October 2024 ENSO Update: Spooky Season

Article link | Emily Becker | NOAA Climate.gov | October 10, 2024

NOAA explained why La Niña remained favored later in 2024 after the end of El Niño.
September 2024 ENSO Update: Binge Watch

Article link | Emily Becker | NOAA Climate.gov | September 12, 2024

NOAA tracked the Pacific transition after El Niño and discussed the odds of La Niña emerging.
El Niño Exits

Article link | NASA Earth Observatory | NASA | July 15, 2024

NASA described the end of the 2023–24 El Niño and its role in ocean warmth, drought, and precipitation extremes.
July 2024 ENSO Update: Summer Vacation

Article link | Emily Becker | NOAA Climate.gov | July 11, 2024

NOAA reported that El Niño had ended and La Niña was favored for the following winter.
June 2024 Update: La Niña Likely by Late Summer

Article link | Emily Becker | NOAA Climate.gov | June 13, 2024

NOAA explained the expected transition from El Niño to La Niña after neutral conditions in 2024.
May 2024 ENSO Update: We’re 10

Article link | Emily Becker | NOAA Climate.gov | May 9, 2024

NOAA marked ten years of ENSO blog updates while discussing the fading 2023–24 El Niño.
El Niño, Ocean Heat, and Coral Reefs

Article link | NOAA | NOAA | April 2024

NOAA confirmed a global coral bleaching event driven by ocean heat, showing the kinds of marine ecosystem risks that can worsen during El Niño periods.
Untangling the Winter 2023–24 Precipitation Forecast

Article link | NOAA Climate.gov | NOAA | April 25, 2024

NOAA reviewed why winter precipitation during the 2023–24 El Niño differed from classic forecast patterns in some areas.
January 2024 El Niño Update: For the Birds

Article link | Emily Becker | NOAA Climate.gov | January 11, 2024

NOAA reported that the 2023–24 El Niño was near peak strength and likely to continue for several months before weakening.
December 2023 El Niño Update: Adventure

Article link | Emily Becker | NOAA Climate.gov | December 13, 2023

NOAA reported that El Niño was strong and had a chance to become historically strong during winter.
Sea Level Satellites Monitor How This Year’s El Niño Is Shaping Up

Article link | NASA Earthdata | NASA | October 31, 2023

NASA Earthdata compared sea level satellite observations from past El Niño events to show how the 2023 event was developing.
August 2023 El Niño Update: Back to School

Article link | Emily Becker | NOAA Climate.gov | August 10, 2023

NOAA explained why El Niño was very likely to continue through winter and what forecasters were watching.
Has Climate Change Already Affected ENSO?

Article link | NOAA Climate.gov | NOAA | July 27, 2023

NOAA reviewed scientific evidence about whether human-caused climate change has already altered El Niño and La Niña behavior.
July 2023 El Niño Update: Learning the Steps

Article link | Emily Becker | NOAA Climate.gov | July 13, 2023

NOAA explained why forecasters were confident that El Niño would continue through the Northern Hemisphere winter.
Pacific Ocean Conditions Favorable for Winter 2023–24 El Niño Development

Article link | NASA Earthdata | NASA | June 15, 2023

NASA Earthdata showed how satellite sea surface height and sea surface temperature data help monitor El Niño development.
June 2023 ENSO Update: El Niño Is Here

Article link | Emily Becker | NOAA Climate.gov | June 8, 2023

NOAA declared the arrival of El Niño in 2023 and explained its likely persistence through winter.
International Sea Level Satellite Spots Early Signs of El Niño

Article link | NASA/JPL | Phys.org | May 15, 2023

Sentinel-6 Michael Freilich detected Kelvin waves moving across the Pacific, providing early satellite evidence of developing El Niño conditions.
International Sea Level Satellite Spots Early Signs of El Niño

Article link | Jet Propulsion Laboratory | NASA/JPL | May 12, 2023

JPL reported that sea level satellite data showed Kelvin waves associated with warmer water moving eastward toward South America.
May 2023 ENSO Update: El Niño Knocking on the Door

Article link | Emily Becker | NOAA Climate.gov | May 11, 2023

NOAA kept an El Niño Watch in place as Pacific conditions became increasingly favorable for development.
April 2023 ENSO Update: El Niño Watch

Article link | Emily Becker | NOAA Climate.gov | April 13, 2023

NOAA issued an El Niño Watch, meaning conditions favored El Niño development within the next six months.
March 2023 ENSO Update: No More La Niña

Article link | Emily Becker | NOAA Climate.gov | March 9, 2023

NOAA reported that the long-running La Niña had ended, opening the possibility of later El Niño development.
February 2023 ENSO Update: The ENSO Blog Investigates

Article link | NOAA Climate.gov | NOAA | February 8, 2023

NOAA examined the developing ENSO outlook and the possibility that El Niño could form later in 2023.
October 2022 La Niña Update: Snack Size

Article link | Emily Becker | NOAA Climate.gov | October 13, 2022

NOAA discussed the persistence of La Niña and how repeated cool-phase events affect seasonal climate expectations.
March 2022 La Niña Update: Three-Bean Salad

Article link | Emily Becker | NOAA Climate.gov | March 10, 2022

NOAA explained continuing La Niña conditions and the longer-term ENSO outlook after multiple cool-season events.

Reference, Data, and Monitoring Resources

What Is the El Niño–Southern Oscillation in a Nutshell?

Article link | NOAA Climate.gov | NOAA | NOAA Climate.gov

NOAA explains ENSO as a coupled ocean-atmosphere pattern with El Niño and La Niña phases that shift global rainfall and temperature patterns.
El Niño and La Niña

Article link | NOAA Climate.gov | NOAA | NOAA Climate.gov

NOAA provides a general guide to El Niño, La Niña, ENSO-neutral conditions, and the global effects of tropical Pacific climate shifts.
El Niño / Southern Oscillation Monitoring

Article link | NOAA National Centers for Environmental Information | NOAA | NOAA NCEI

NOAA's NCEI page tracks current ENSO status and provides access to monitoring data, indices, and official outlooks.
El Niño Southern Oscillation Dashboard

Article link | Copernicus Marine Service | Copernicus | Copernicus

Copernicus provides an interactive dashboard for tracking ENSO-related sea surface temperature and ocean indicators.
Sea Surface Temperature Anomaly

Article link | NASA Earth Observatory | NASA | NASA Earth Observatory

NASA's global sea surface temperature anomaly maps help show the ocean warming patterns that define El Niño and La Niña events.
El Niño

Article link | NASA Science | NASA | NASA Science

NASA's El Niño topic page collects satellite observations, Earth Observatory articles, and mission resources about the ENSO cycle.
Ocean Surface Topography From Space

Article link | Jet Propulsion Laboratory | NASA/JPL | NASA/JPL

NASA's ocean surface topography portal explains how satellite altimetry tracks sea level, ocean circulation, and El Niño-related warm water movement.
Altimetric and Ocean Surface Topography Data Information

Article link | Physical Oceanography Distributed Active Archive Center | NASA/JPL | NASA

NASA's PO.DAAC explains altimetry datasets used to monitor ocean height, sea level, and ENSO-linked ocean changes.
Climate Bulletins

Article link | Copernicus Climate Change Service | Copernicus | 2026

Copernicus climate bulletins track global temperature, sea surface temperature, sea ice, and tropical Pacific conditions relevant to El Niño monitoring.
NOAA Oceanic Niño Index

Article link | NOAA Climate Prediction Center | NOAA | 2026

NOAA's Oceanic Niño Index provides the official historical record used to classify El Niño and La Niña episodes.
Multivariate ENSO Index

Article link | NOAA Physical Sciences Laboratory | NOAA | 2026

NOAA's Multivariate ENSO Index combines several ocean-atmosphere variables to describe the strength and evolution of ENSO events.
ENSO and Global Climate Impacts

Article link | NOAA Climate.gov | NOAA | NOAA Climate.gov

NOAA answers common questions about how El Niño and La Niña affect temperature, precipitation, storms, drought, and seasonal outlooks.
World Meteorological Organization El Niño/La Niña Update

Article link | World Meteorological Organization | WMO | 2026

WMO explains global El Niño and La Niña monitoring, seasonal forecast updates, and international warnings about climate impacts.
Global Seasonal Climate Update

Article link | World Meteorological Organization | WMO | 2026

WMO's seasonal climate update summarizes global temperature and rainfall outlooks influenced by ENSO and other large-scale climate drivers.
El Niño Impacts on Fisheries and Marine Ecosystems

Article link | NOAA Fisheries | NOAA | NOAA Fisheries

NOAA explains how marine heatwaves, often intensified during El Niño periods, affect fisheries, marine mammals, seabirds, and ocean ecosystems.
Marine Heatwave Tracker

Article link | NOAA Integrated Ecosystem Assessment | NOAA | NOAA

NOAA's marine heatwave tracker monitors warm ocean anomalies in the California Current, helping scientists assess ecosystem risks during El Niño years.
El Niño and Coral Bleaching

Article link | NOAA Coral Reef Watch | NOAA | NOAA

NOAA Coral Reef Watch tracks ocean heat stress and coral bleaching risk, which can intensify during El Niño and marine heatwave conditions.
NASA Sea Level Change Portal

Article link | NASA Sea Level Change Team | NASA | NASA

NASA's sea level portal explains satellite measurements of ocean height, including data useful for tracking El Niño-related warm water movement.
Copernicus Marine Ocean Monitoring Indicators

Article link | Copernicus Marine Service | Copernicus | Copernicus

Copernicus indicators provide ocean heat, sea level, and temperature datasets used to monitor ENSO and broader ocean climate change.
Copernicus Climate Data Store

Article link | Copernicus Climate Change Service | Copernicus | Copernicus

Copernicus data products support climate analysis of sea surface temperature, ocean heat, and atmospheric conditions linked to El Niño.
NOAA Physical Sciences Laboratory ENSO Resources

Article link | NOAA Physical Sciences Laboratory | NOAA | NOAA

NOAA PSL provides ENSO datasets, maps, and research resources for studying El Niño, La Niña, and global climate teleconnections.
NOAA Climate Prediction Center ENSO Monitoring

Article link | NOAA Climate Prediction Center | NOAA | NOAA

NOAA CPC provides maps and monitoring products showing tropical Pacific sea surface temperature, winds, and atmospheric patterns.
ENSO and Seasonal Forecast Skill

Article link | European Centre for Medium-Range Weather Forecasts | ECMWF | 2026

ECMWF seasonal charts help track forecast patterns influenced by El Niño, including temperature, rainfall, and sea surface temperature anomalies.
El Niño and U.S. Seasonal Outlooks

Article link | NOAA Climate Prediction Center | NOAA | 2026

NOAA seasonal outlooks translate ENSO forecasts into probabilities for temperature and precipitation across the United States.
El Niño and Australia’s Climate Outlook

Article link | Bureau of Meteorology | Australian Government | 2026

Australia's Bureau of Meteorology tracks ENSO status and explains how El Niño can influence heat, rainfall, drought, and bushfire risk.
El Niño and Pacific Sea Surface Temperatures

Article link | Bureau of Meteorology | Australian Government | 2026

Australian ocean monitoring products show sea surface temperature anomalies across the Pacific, a key indicator of El Niño strength.
El Niño and New Zealand Climate Outlooks

Article link | National Institute of Water and Atmospheric Research | NIWA | 2026

NIWA seasonal outlooks help show how El Niño can influence rainfall, temperature, and wind patterns around New Zealand.
El Niño and Global Climate Monitoring

Article link | NOAA National Centers for Environmental Information | NOAA | 2026

NOAA monthly global climate reports track temperature, precipitation, and ocean conditions during El Niño and other major climate events.
El Niño and Ocean Data From Space

Article link | NASA Earthdata | NASA | NASA

NASA Earthdata provides ocean datasets from satellites that help scientists monitor sea surface temperature, sea surface height, and El Niño changes.
El Niño and Earth System Forecasting

Article link | NOAA | NOAA | NOAA

NOAA research laboratories study ocean-atmosphere interactions, climate prediction, and the forecasting systems used to anticipate El Niño impacts.

Historical Background and Satellite Archives

Impacts of El Niño and La Niña on the Hurricane Season

Article link | NOAA Climate.gov | NOAA | May 30, 2014

NOAA explains how El Niño and La Niña influence Atlantic and Pacific hurricane activity through wind shear and atmospheric circulation.
Where Is La Niña?

Article link | NASA Earth Observatory | NASA | July 3, 2003

NASA used sea surface height data to explain quiet tropical Pacific conditions and the relationship between ocean height and ENSO phases.
El Niño’s Extended Family

Article link | NASA Earth Observatory | NASA | November 8, 1999

NASA explains the wider family of cyclic climate patterns that influence global weather, including El Niño and related ocean-atmosphere interactions.
The Color of El Niño

Article link | NASA Earth Observatory | NASA | August 19, 1999

NASA describes how satellite ocean-color observations help reveal biological and oceanographic changes linked to El Niño.