Daily Weather Forecast
Daily Weather Forecast
Daily Weather Forecast Infographic
09 September 2026Image:
Daily Weather Forecast
Announcement Date 09 September 2026
General Situation
09 September 2026The monsoon trough lies across the North and the upper Northeast while the moderate southwest monsoon prevails over the Andaman Sea, Thailand and the Gulf. Heavy to very heavy rainfall is expected mostly in the North, the Northeast. The Central region including Bangkok and its vicinity as well as the East and South regions will be affected in the subsequent period. This is due to a high-pressure system spreading over southern China, which will move further down to cover upper Vietnam and upper Laos. As a result, the monsoon trough will shift southward to pass through the North, the Upper Central, and the Northeast, alongside a moderate southwesterly monsoon blowing across the Andaman Sea, Thailand, and the Gulf of Thailand. After that during 10-13 September 2026, the high-pressure system from China will extend to the upper North and upper Northeast of Thailand leads to the monsoon trough will subsequently shift southward across the lower Central, the eastern region and the upper South into the active low pressure cell over the central South China Sea. Meanwhile, the southwest monsoon is expected to strengthen. Less rain is likely in the upper North and upper Northeast, while rainfall will increase over the Central region, including Bangkok and vicinity, the East, and the South, with heavy to very heavy rainfall are possible in some areas. People should beware of heavy to very heavy rains and accumulation that may cause flash floods, overflows and landslides especially along the waterways near foothills and lowlands. The moderate winds and waves in the upper Andaman Sea are expected about 2 meters high and above 2 meters high in thundershowers. All ships should proceed with caution and keep off thundershowers. In addition, 11-13 September, 2026, the low-pressure system over the central South China Sea is likely to intensify into a tropical cyclone. Please stay tuned for continuous weather updates during this period.
Announcement Date 09 September 2026
Thailand Weather Forecast
06:00 Today To 06:00 TomorrowNorthern
Fairly widespread thundershowers and isolated heavy rain in Mae Hong Son, Chiang Mai, Chiang Rai, Phayao, Nan, Sukhothai, Uttaradit, Tak, Kamphaeng Phet, and Phichit. Isolated very heavy rain in Phitsanulok and Phetchabun. Minimum temperature 22-28 °C. Maximum temperature 32-37 °C. Variable winds 10-20 km./hr.
Northeastern
Fairly widespread thundershowers and isolated heavy rain in Loei, Nong Khai, Nong Bua Lam Phu, Udon Thani, Chaiyaphum, Kalasin, Nakhon Ratchasima, Buri Ram, Surin, and Si Sa Ket. Isolated very heavy rain in Bueng Kan, Sakon Nakhon, Nakhon Phanom, Khon Kaen, Maha Sarakham, Mukdahan, Roi Et, Yasothon, Amnat Charoen, and Ubon Ratchathani. Minimum temperature 23-25 °C. Maximum temperature 29-34 °C. Variable winds 10-20 km./hr.
Central
Scattered thundershowers and isolated heavy rain in Nakhon Sawan, Uthai Thani, Phra Nakhon Si Ayutthaya, Lop Buri, Saraburi, Kanchanaburi, Ratchaburi, Nakhon Pathom, Samut Songkhram, and Samut Sakhon. Minimum temperature 23-26 °C. Maximum temperature 34-36 °C. Southwesterly winds 10-20 km./hr.
Eastern
Scattered thundershowers and isolated heavy rain in Nakhon Nayok, Prachin Buri, Sa Kaeo, Chanthaburi ,and Trat. Minimum temperature 24-27 °C. Maximum temperature 31-35 °C. Southwesterly winds 15-35 km./hr. Wave height 1-2 meters and above 2 meters in thundershowers.
Southern (East Coast)
Scattered thundershowers mostly in Phetchaburi, Prachuap Khiri Khan, Chumphon, Surat Thani, Pattani, Yala, and Narathiwat. Minimum temperature 23-26 °C. Maximum temperature 32-37 °C. Southwesterly winds 15-35 km./hr. Wave height about 1 meter, 1-2 meters offshore and above 2 meters in thundershowers.
Southern (West Coast)
Scattered thundershowers and isolated heavy rain in Ranong and Phang Nga. Minimum temperature 24-27 °C. Maximum temperature 30-35 °C. From Phuket northward: Southwesterly winds 20-35 km./hr. Wave height about 2 meters and above 2 meters in thundershowers. From Krabi southward: Southwesterly winds 15-35 km./hr. Wave height 1-2 meters and above 2 meters in thundershowers.
Bangkok Metropolitan
Fairly widespread thundershowers and isolated heavy rain. Minimum temperature 25-28 °C. Maximum temperature 32-35 °C. Southwesterly winds 10-20 km./hr.
Announcement Date 09 September 2026