Thailand to officially enter summer on 22 February, temperatures may hit 43C

2026-02-19 - 07:53

BANGKOK — Thailand will officially enter the summer season on 22 February 2026, with temperatures expected to reach as high as 42–43C this year, the Thai Meteorological Department announced on 19 February. The department warned that weather conditions will be unstable during the seasonal transition period from 23–25 February, with summer storms forecast for upper Thailand. Thunderstorms, strong winds and possible hail are expected in some areas as cold air masses collide with hot air. After storms pass, temperatures may temporarily drop before rising again. Overall, this year’s summer is expected to be hotter than last year, particularly from mid-March to April, when extreme heat is forecast. Mae Hong Son, Lampang and Tak provinces are among areas under close watch, with temperatures possibly exceeding 42C. The department said the summer season is likely to end around mid-May. Globally, Thailand’s weather will be influenced by a weakening La Niña pattern transitioning towards neutral conditions. Total rainfall is expected to be near average, although slight dry conditions are forecast in parts of the North, Central Plains and East. The department’s director-general advised the public to take care during periods of extreme heat, avoid outdoor activities between 10:00 and 19:00 when the heat index is high and the risk of heatstroke increases, and remain cautious about fire hazards and forest fires during dry spells. People can follow official warnings and forecasts via the department’s website or by calling its 24-hour hotline 1182.