Full Breakdown
2026 El Niño Forecast Signals Near-Global Heat and Variable Rainfall
4/25/2026, 10:36:49 PM
Imminent El Niño Development
The WMO Global Seasonal Climate Update (21 April 2026) projects El Niño emergence between May and July 2026 with high confidence, possibly a strong event. NOAA assigns a 61 % chance of development and a 25 % chance of a very strong episode by November.
Scientific Basis
El Niño, the warm phase of ENSO, recurs every 2-7 years and lasts 9-12 months. Rapid Pacific warming after the 2025-26 La Niña signals transition, though the spring predictability barrier limits early certainty.
Key Forecasting Bodies
Wilfran Moufouma Okia leads the WMO forecast. Contributing centers include NOAA, IRI, the UK Met Office, Germany’s DWD, Canada’s BCC, Australia’s BOM, and India’s IMD.
Projected Temperature and Rainfall
The update foresees near-global dominance of above-normal land-surface temperatures for May-July, strongest over southern North America, Central America, the Caribbean, Europe and Northern Africa. Rainfall is projected to rise in southern South America, the southern U.S., the Horn of Africa and central Asia, while drought may affect Australia, Indonesia and southern Asia. IMD expects Indian monsoon rainfall at roughly 80 % of normal (92 % of long-period average).
Potential Global Impacts
Above-average temperatures will raise heat-stress and energy demand. Shifts in precipitation threaten crops, water supplies and disaster response. Warmer Pacific waters may boost Pacific cyclones and suppress Atlantic hurricanes.
Official Statements & Responses
WMO officials stress high confidence but note the spring predictability barrier limits certainty until after April. NOAA highlights a 61 % probability for May-July development and a 25 % chance of a very strong event. IMD warns of a below-normal Indian monsoon, the first such forecast in three years.
Criticism & Opposition
Forecasters cite the spring predictability barrier as a key uncertainty, especially for North American rainfall where model signals remain mixed.
Conflicting Reports & Gaps
NOAA’s 61 % probability contrasts with WMO’s qualitative high confidence; precise rainfall forecasts for many regions, especially North America, remain unsettled.
Verbatim Quotes
- “After a period of neutral conditions at the start of the year, climate models are now strongly aligned, and there is high confidence in the onset of El Niño, followed by further intensification in the months that follow,” — Wilfran Moufouma Okia, Chief of Climate Prediction, WMO
- “According to the models, it could be a high-intensity episode,” — Wilfran Moufouma Okia, WMO
- “There is no evidence that climate change increases the frequency or intensity of El Nino events. But it can amplify associated impacts because a warmer ocean and atmosphere increase the availability of energy and moisture for extreme weather events such as heatwaves and heavy rainfall.” — Wilfran Moufouma Okia, WMO
- “It is expected to be 80 per cent this year,” — M Ravichandran, Secretary, Union Ministry of Earth Sciences (India)
What’s Next
A revised WMO El Niño/La Niña update will be issued in late May, followed by a UN briefing. Regional outlook forums will issue monsoon and flood forecasts in June, while sea-surface monitoring refines intensity estimates.
