Bangkok: The Meteorological Department reveals that Thailand has decreased rainfall. But there will still be heavy rain in some areas in the northern region. As for Bangkok and the surrounding area, thunderstorms will occur in 20% of the area. Meteorological Department weather forecast for the next 24 hours The southwest monsoon that prevails over the upper Andaman Sea, Thailand and the Gulf of Thailand has weakened. This characteristic causes Thailand to have less rain. But there is still heavy rain in some areas in the northern region. People in the area are asked to be careful of the dangers from heavy rain and accumulated rain. As for wind waves in the upper Andaman Sea, they are weakening. There will be waves 1-2 meters high. In areas with thunderstorms, waves higher than 2 meters. Boaters in those areas are asked to navigate with caution and avoid sailing in areas with thunderstorms. Regional weather forecast Bangkok - Metropolitan area: Thunderstorms in 20 percent of the area. Minimum temperature 2 6-28 degrees Celsius. Maximum temperature 35-38 degrees Celsius. Southwestern winds 10-25 km./hr. Northern region: Thunderstorms in 30 percent of the area and heavy rain in some places. In Mae Hong Son, Chiang Mai, Chiang Rai and Tak provinces, minimum temperature 24-26 degrees Celsius, maximum temperature 33-35 degrees Celsius, southwest winds 10-20 km/hr. Northeastern region: Thunderstorms in 10 percent of the area, mostly in Loei, Nong Khai, Bueng Kan, Sakon Nakhon, Nakhon Phanom and Chaiyaphum. Minimum temperature 24-27 degrees Celsius, maximum temperature 34-37 degrees Celsius. Southwestern winds 10-20 km./ watch. Central region: Thunderstorms in 20 percent of the area, mostly in Uthai Thani, Kanchanaburi and Ratchaburi provinces. Minimum temperature 24-28 degrees Celsius, maximum temperature 36-37 degrees Celsius, southwest winds 10-25 km/hr. Eastern Region: Thunderstorms in 30 percent of the area, mostly in Chanthaburi and Trat provinces. Minimum temperature 25-29 degrees Celsius, maximum temperatu re 33-36 degrees Celsius. Southwestern winds 15-30 km/hr. The sea has high waves. About 1 meter. In areas with thunderstorms, waves higher than 1 meter. Southern Region (East Coast): Thunderstorms in 20 percent of the area, mostly in Songkhla, Pattani and Narathiwat provinces. Minimum temperature 24-27 degrees Celsius, maximum temperature 35-37 degrees Celsius, southwest winds 15-30 km/hr. The sea has waves about 1 meter high. Waves 1-2 meters high from the coast and in areas with thunderstorms. Southern region (west side): Thunderstorms in 20 percent of the area, mostly in Ranong and Phang Nga provinces. Minimum temperature 25-28 degrees Celsius. Maximum temperature 34-36 degrees Celsius. From Phang Nga province upwards: Southwestern wind speed 15- 35 km./hr. The sea has waves 1-2 meters high. In areas with thunderstorms, waves higher than 2 meters. From Phuket down: Southwestern winds 15-30 km./hr. The sea has waves about 1 meter high. Areas with thunderstorms, waves higher than 1 meter Source: Thai New s Agency