An El Niño event is expected to develop from mid-2026, impacting global temperature and rainfall patterns, according to the World Meteorological Organization (WMO). The latest monthly Global Seasonal Climate Update from WMO signals a clear shift in the Equatorial Pacific: sea-surface temperatures are rising rapidly, pointing to a likely return of El Niño conditions as early as May-July 2026. Forecasts indicate there is a "nearly global dominance of above-normal land surface temperatures" in the upcoming three-month period, and regional variations in rainfall patterns.

An El Niño event is expected to develop from mid-2026, impacting global temperature and rainfall patterns, according to the World Meteorological Organization (WMO). The latest monthly Global Seasonal Climate Update from WMO signals a clear shift in the Equatorial Pacific: sea-surface temperatures are rising rapidly, pointing to a likely return of El Niño conditions as early as May-July 2026. Forecasts indicate there is a “nearly global dominance of above-normal land surface temperatures” in the upcoming three-month period, and regional variations in rainfall patterns.

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