Thai Meteorological Department Issues Heavy Rain and Cold Weather Alerts
The Thai Meteorological Department has warned of heavy rainfall in the south and cold temperatures in the north, advising residents and travelers to exercise caution.
On November 12, 2026, the Thai Meteorological Department issued a weather advisory for 22 provinces across Thailand. The forecast highlights heavy to very heavy rainfall in the southern region, which may lead to flash floods and forest runoff, particularly in low-lying areas and near mountain slopes. Residents and travelers in these areas are urged to remain vigilant regarding potential weather-related hazards.
Simultaneously, upper Thailand is experiencing cooler temperatures, with mountain peaks in the north reaching as low as 9 degrees Celsius. The department advises the public to maintain their health during this cold spell and suggests that farmers take precautions to protect their crops. The current weather patterns are driven by a strong high-pressure system covering upper Thailand, combined with a westerly trough moving through the region.
Marine conditions are also affected, with moderate northeasterly monsoons impacting the Gulf of Thailand and the Andaman Sea. Waves in the lower Gulf of Thailand are expected to reach heights of 2 to 3 meters, with higher swells in areas experiencing thunderstorms. Small boats in the lower Gulf are advised to remain ashore, and all mariners are cautioned to avoid sailing through storm-affected zones. Travelers should monitor local updates as weather conditions can change rapidly.
