Bangkok: The Meteorological Department has announced that some areas of northern Thailand will experience heavy rain, particularly in Mae Hong Son, Tak, Bueng Kan, Amnat Charoen, and Ubon Ratchathani provinces. Residents in these areas are advised to be cautious of the dangers of heavy rain and accumulated rain. Meanwhile, Bangkok and its vicinity have a 60% chance of thunderstorms.
According to Thai News Agency, the Meteorological Department has forecast heavy rain in some areas of upper Thailand over the next 24 hours, particularly in Mae Hong Son, Tak, Bueng Kan, Amnat Charoen, and Ubon Ratchathani provinces. Residents in these areas are advised to be cautious of the dangers of heavy rain and accumulated rain due to the monsoon trough passing through the northern and upper northeastern regions, coupled with the southwest monsoon prevailing over the Andaman Sea, Thailand, and the Gulf of Thailand, which is moderately strong.
In the upper Andaman Sea, waves are expected to be approximately 2 meters high. In the lower Andaman Sea and the upper Gulf of Thailand, waves are expected to be 1-2 meters high. In areas with thunderstorms, waves are expected to be higher than 2 meters. Mariners are advised to proceed with caution and avoid sailing in areas with thunderstorms.
In addition, Typhoon "RAGASA", located in the eastern Philippines, is expected to move into the South China Sea today. It is expected to move into the Gulf of Tonkin and make landfall in northern Vietnam between September 25-26, 2025, after which it will gradually weaken. The influence of this storm will cause the monsoon trough and the monsoon covering Thailand to intensify during that period.
Bangkok and surrounding areas will experience thunderstorms with a 60% chance of rain. Minimum temperature 25-27 degrees Celsius, maximum temperature 32-35 degrees Celsius.