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El Niño set to peak in December, threatening warmer winter across Asia

El Niño conditions are expected to reach their strongest intensity in December, with Pacific Ocean temperatures potentially breaking records. The phenomenon could trigger unusual warming, altered rainfall patterns, and increased risks of drought and flooding across multiple regions.

LSN India · 10 October 2026

El Niño set to peak in December, threatening warmer winter across Asia

El Niño is forecast to reach peak strength in December, bringing anomalously warm conditions to parts of Asia and disrupting typical winter weather patterns across the region. Scientific projections indicate Pacific Ocean surface temperatures could exceed previous records, intensifying the climate pattern's global impacts.

The strengthening El Niño presents significant meteorological challenges for the Indian subcontinent and Southeast Asia. Higher-than-normal temperatures during the typically cooler December months could suppress winter rainfall, while altered atmospheric circulation patterns may redirect moisture flows, creating conditions favorable for either excessive precipitation or prolonged dry spells depending on local geography.

Authorities across the region are monitoring the developing El Niño conditions closely. The phenomenon's effects on monsoon systems and seasonal rainfall distribution could have substantial implications for agriculture, water resources, and hydroelectric power generation throughout South and Southeast Asia. Weather agencies have advised preparedness for potential extreme weather events associated with the strong El Niño signal.

Historical data shows major El Niño episodes produce far-reaching climate impacts lasting several months. The anticipated December peak suggests sustained warming and precipitation anomalies could persist into the early months of the new year, affecting planting schedules, reservoir levels, and seasonal water availability across the region.