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Daily Weather Forecast
Announcement Date 27 May 2026
The moderate southwest monsoon prevails over the Andaman Sea, Thailand and the Gulf with thundershowers and isolated heavy rains in the North and the South(west coast) regions. People should beware of heavy rain and accumulation. The moderate wind and waves in the upper Andaman Sea are likely about 2 meters high and above 2 meters high in thundershowers. In the lower Andaman Sea and the upper Gulf, the waves are expected to be 1-2 meters high and above 2 meters high in thundershowers. All ships should proceed with caution and keep off thundershowers. In addition, during 28 May – 1 June 2026, the monsoon through lies across the upper country with the southwest monsoon prevailing over the Andaman Sea, Thailand and the Gulf is strengthening. More rain and isolated heavy rains is likely in the country with isolated very heavy rains in the East and the South (west coast). The strengthening winds and waves in the Andaman Sea. The waves in the upper Andaman Sea are expected 2-3 meters high and above 3 meters high in thundershowers.
Announcement Date 27 May 2026
Northern
Scattered thundershowers and isolated heavy rain in Mae Hong Son, Chiang Mai, and Tak. Minimum temperature 22-26 °C. Maximum temperature 34-37 °C. Southwesterly winds 10-20 km./hr.
Northeastern
Scattered thundershowers mostly in Loei, Nong Khai, Bueng Kan, Chaiyaphum, Nakhon Ratchasima, Buriram, Surin, Sisaket, and Ubon Ratchathani. Minimum temperature 23-26 °C. Maximum temperature 35-38 °C. Southwesterly winds 10-20 km./hr.
Central
Scattered thundershowers mostly in Nakhon Sawan, Uthai Thani, Suphan Buri, Phra Nakhon Si Ayutthaya, Kanchanaburi, Ratchaburi, Nakhon Pathom, and Samut Songkhram. Minimum temperature 25-26 °C. Maximum temperature 36-38 °C. Southwesterly winds 10-20 km./hr.
Eastern
Scattered thundershowers mostly in Nakhon Nayok, Prachinburi, Rayong, Chanthaburi, and Trat. Minimum temperature 24-27 °C. Maximum temperature 33-37 °C. Southwesterly winds 15-35 km./hr. Wave height 1-2 meters and above 2 meters in thundershower.
Southern (East Coast)
Scattered thundershowers mostly in Phetchaburi, Prachuap Khiri Khan, Chumphon, Surat Thani, and Nakhon Si Thammarat. Minimum temperature 23-25 °C. Maximum temperature 33-36 °C. Southwesterly winds 15-35 km./hr. Wave height about 1 meter, 1-2 meters offshore and above 2 meters in thundershower.
Southern (West Coast)
Scattered thundershowers and isolated heavy rain in Ranong and Phang-nga. Minimum temperature 24-25 °C. Maximum temperature 32-34 °C. From Phangnga northward: Southwesterly winds 20-35 km./hr. Wave height about 2 meters and above 2 meters in thundershower. From Phuket southward: Southwesterly winds 15-35 km./hr. Wave height 1-2 meters and above 2 meters in thundershower.
Bangkok Metropolitan
Isolated thundershowers. Minimum temperature 24-27 °C. Maximum temperature 35-38 °C. Southwesterly winds 10-20 km./hr.
Announcement Date 27 May 2026
