El Niño Forecasted to Reach Record Strength by December 2026
El Niño is expected to continue through February 2027 with a near-100% likelihood.
In Brief
- •El Niño is expected to continue through February 2027 with a near-100% likelihood.
- •The Niño 3.4 sea-surface temperature anomaly is forecasted to reach +3.7°C in October-December 2026, exceeding the previous record of +2.6°C.
- •El Niño does not create new heat but releases stored ocean heat, with the current ocean being the warmest ever measured.
- •The event is expected to bring above-average temperatures and shift rainfall patterns, increasing drought and flood risks.
- •The forecast is based on data from 13 national and international centers coordinated by the World Meteorological Organization (WMO).
Why It Matters
The strengthening El Niño event is expected to significantly impact global weather patterns, potentially leading to increased temperatures and altered precipitation levels. This could result in droughts in some regions and floods in others, affecting agriculture, water resources, and overall economic stability. The event also highlights the ongoing issue of climate change, as the warmest ocean temperatures ever recorded are contributing to the intensity of El Niño.
Key Details
- Forecasted Niño 3.4 Temperature Anomaly
- +3.7°C
- Previous Record Niño 3.4 Temperature Anomaly
- +2.6°C
- Duration of El Niño
- October 2026 to February 2027
- Peak Month
- December 2026
- Indian Ocean Dipole Forecast
- +0.5°C
Context & Background
El Niño and La Niña are opposite phases of the El Niño-Southern Oscillation (ENSO), a natural climate pattern involving fluctuating ocean temperatures in the central and eastern equatorial Pacific. This pattern significantly influences global weather patterns and has been studied for decades.
Original Reporting & Sources
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