Bangkok: The Meteorological Department has issued a warning for heavy rain in the North, Northeast, and western South of Thailand, which poses a risk of flash flooding. Residents in these regions should be vigilant about the possibility of heavy to very heavy rainfall and accumulated rainfall that could lead to flash floods, landslides, and mudslides. Those living on slopes near waterways and in low-lying areas are advised to take extra precautions. Travelers should avoid routes prone to recurrent flooding, as short-term flooding might occur in low-lying areas.
According to Thai News Agency, this weather pattern results from a monsoon trough passing over northern and upper northeastern Thailand and a moderately strong southwest monsoon covering the Andaman Sea, Thailand, and the Gulf of Thailand. Additionally, a low-pressure system is affecting the northern region.
Wave conditions in the Andaman Sea and the Gulf of Thailand are intensifying. In the upper Andaman Sea, waves are reaching heights of 2-3 meters and can exceed 3 meters during thunderstorms. In the lower Andaman Sea and the upper Gulf of Thailand, waves are approximately 2 meters high, with potential increases during thunderstorms. Mariners in these areas should exercise caution and avoid sailing in thunderstorms. Small boats in the upper Andaman Sea are advised to stay ashore until September 20, 2026.
The weather forecast for Thailand from 6:00 AM today until 6:00 AM tomorrow indicates a 70% chance of thunderstorms and heavy rain in some areas of the North, Northeast, Central, Eastern, and Southern regions, including Bangkok and surrounding areas. Temperatures will vary, with minimums ranging from 21 to 27 degrees Celsius and maximums between 28 to 36 degrees Celsius. Winds across different regions are predominantly southwesterly, with speeds varying between 10 and 40 km/h.