Meteorological Department Predicts Milder Winter Due to El Niño
Thailand's winter officially began November 9, but El Niño and global warming will likely bring milder temperatures, with the coldest period forecast for January 2027.
November 9, 2026 - Mr. Natthawut Daendee, Deputy Director-General of the Meteorological Department acting as Director-General, announced Thailand's entry into the 2026 winter season starting November 9. However, this doesn't mean temperatures will drop nationwide immediately. It marks a shift in wind patterns and weather characteristics toward winter conditions. Temperature drops will depend on cold air masses from China spreading down periodically. Early winter may see varying conditions across regions - some areas cooling while others remain hot or rainy during the day. Despite the official start of winter, this year's cold may not meet expectations, especially early in the season when conditions remain volatile due to El Niño tending to raise temperatures above normal, combined with global warming. However, periodic cold spells are still likely, particularly when strong cold air masses from China blanket Thailand. The coldest period is forecast for January 2027. Upper Northern and Northeastern regions may see lows of 10-13°C, while Chiang Rai could drop to 9-11°C. Mountain peaks may experience very cold conditions and frost. Bangkok is expected to reach lows of around 19-21°C with cool mornings in some periods.
