El Niño Outlook 2026: What the +3.8°C Pacific Forecast Means
KEYWORD_WORLD · News · Checked 24 October 2026 (KST) WMO forecasts a seasonal average of about +3.8°C above normal for sea-surface temperatures in the Niño 3.4 Pacific region during November 2026–January 2027. This number describes a regional ocean forecast. Use your local forecast for the air temperature where you live. The World Meteorological Organization (WMO), the UN’s weather and climate agency, published the outlook on 21 October . Its follow-up on 22 October stresses preparing early and using regional and national forecasts to decide where and when to act. Read the number · Regional risks · Make a check routine · Compare forecasts Read the place, measure and period together El Niño is the warm phase of a recurring Pacific ocean-and-atmosphere pattern. It can shift rainfall and temperature patterns far beyond the ocean region where it is measured. The 21 October WMO outlook gives these details: Field What this forecast says Place Niño 3.4, a region of the tropical ...