Thailand Officially Enters Winter Season with Milder Temperatures Expected
The Thai Meteorological Department has announced the start of the winter season, though temperatures are expected to be warmer than usual due to El Niño.
On November 9, 2026, the Thai Meteorological Department (TMD) officially declared the commencement of the winter season in Thailand. While the transition in wind patterns marks the start of the season, the TMD cautions that the country will not experience an immediate drop in temperatures nationwide. Residents and travelers should expect variable weather conditions, with some regions remaining warm during the day or experiencing occasional rain.
According to the TMD, this year's winter is expected to be milder than average. The influence of the El Niño phenomenon, combined with global warming trends, is likely to keep temperatures higher than typical seasonal norms. The intensity of cold spells will depend heavily on the arrival of cold air masses from China.
For those planning travel, the coldest period is anticipated to occur in January 2027. During this time, the upper northern and northeastern regions may see minimum temperatures between 10-13 degrees Celsius, with Chiang Rai potentially reaching 9-11 degrees Celsius. High-altitude areas may experience extreme cold and frost. In Bangkok, the lowest temperatures are projected to range between 19-21 degrees Celsius. Travelers are advised to monitor local weather updates, as the exact timing and strength of cold air mass movements remain subject to change throughout the season.
