Bangkok: Starting tomorrow, Thailand will officially enter winter 68. The Meteorological Department announced that northern Thailand will enter the cold season on October 23rd. This year’s cold season is slightly later than usual. Average low temperatures are expected to be 21-22 degrees Celsius, with the coldest temperatures expected from mid-December to early February. The Department also warned that the South will continue to experience heavy rain and strong winds.
According to Thai News Agency, Ms. Sukanyanee Yawinchan, Director-General of the Meteorological Department, revealed that Thailand will officially enter winter on October 23, 2025, approximately one week later than usual. Temperatures in the northern and northeastern regions will begin to drop first, followed by cold air spreading down to the central and eastern regions. The prevailing winds have shifted to northeasterly, significantly reducing rainfall in the northern part of the country.
“Winter will end around the end of February 2026, with an average low temperature of 21-22 degrees Celsius. Mountaintops in the northern and upper northeastern regions, such as Mae Hong Son, Chiang Rai, Nan, Loei, Nakhon Phanom, and Sakon Nakhon, may experience extremely cold weather on some days, with lows of 7-8 degrees Celsius and a chance of frost. In Bangkok and its vicinity, the average low temperature is 18-20 degrees Celsius,” said the Director-General of the Meteorological Department.
Although northern Thailand has entered the winter season, the southern region, particularly the Gulf of Thailand, will continue to experience heavy rain and some areas will experience heavy rainfall due to the influence of the monsoon trough and low-pressure area. Flash floods, mudslides, and strong sea waves are possible. Residents and fishermen are advised to closely monitor warning announcements.
Mr. Somkuan Tonjan, Director of the Meteorological Department’s Weather Forecast Division, revealed that between October 22-26, a moderate cold air mass from China will begin to spread over northern Thailand, causing isolated thunderstorms at first, particularly in the lower central region. After that, the rainfall will decrease, the weather will become cooler, and the northeasterly winds will become stronger, a clear sign of the onset of winter.
Tropical Storm Fengchen, over the upper South China Sea, is currently trending southwestward and is expected to move closer to the central coast of Vietnam today (October 22, 2015) before rapidly weakening due to a collision with a cold air mass. This storm will not move into Thailand, but it may cause cloudy weather and some rain in the eastern part of the northeastern region.
The Meteorological Department is urging the public to prepare for unstable weather conditions during the changing seasons, particularly thick morning fog, frost in high areas, and strong winds. Drivers should exercise caution, while fishermen should avoid sailing during periods of high waves and closely monitor warnings from the Meteorological Department.