Thailand
28 November 2025 - 04 December 2025The rather strong high-pressure area covered upper Thailand, southern part and the South China Sea at the beginning of the period then was weakened. Meanwhile, another moderate high-pressure area from China extended its ridge to cover upper northern, northeastern and the South China Sea on the last day of the period. Additionally, the easterly wind prevailed over Thailand, combined with the northeast monsoon prevailing over the Gulf of Thailand, the south part and the Andaman Sea throughout the period. These conditions caused cool to cold weather over upper Thailand, with very cold observed in some areas of the northern and northeastern regions in the first half of the period. After that, the temperature increased but cool weather in general with cold weather in the northern part. Rainfall was observed in some areas on the last day of the period. For the southern region, rainfall was reported in the east of southern region at the beginning and the last day of the period.
Region Weather Summary
28 November 2025 - 04 December 2025Northern
Cool to cold weather in general with very cold weather in some areas in the first half of the period then increasing in temperature and cold weather remained mainly in upper region. Cold to very cold weather in the mountainous areas and mountain tops. Frost was reported in Chiang Mai province from 28 Nov. – 2 Dec. and Nan province on 29-30 Nov.
| Max Rain | Max. Temp. | Min. Temp. |
| 6.0 º C at Umphang Tak on 29 Nov. (2.0 º C at Kiew Mae Pan, Doi Inthanon, Chom Thong Chiang Mai on 29 Nov.) |
Northeastern
Cool to cold weather in general in the first half of the period with very cold weather in some areas on the first day of the period then increasing in temperature and cool weather in general with very cold weather in some areas over upper region. Cold to very cold weather in the mountainous areas and mountain tops. Frost was reported in Loei province on 29 Nov. Light isolated rain in some areas on the last day of the period.
| Max Rain | Max. Temp. | Min. Temp. |
| 3.4 mm at Lahan Sai Buri Ram on 4 Dec. | 7.3 º C at Nakhon Phanom Agromet. Stn. Nakhon Phanom on 28 Nov. (4.0 º C at Loei Agricultural Research and Loei on 29 Nov.) |
Central
Cool to cold weather in general in the first half of the period then increasing in temperature and cool weather in general. Isolated light rain in some areas on the last day of the period.
| Max Rain | Max. Temp. | Min. Temp. |
| 0.1 mm at Mueang Samut Songkhram Samut Songkhram on 4 Dec. | 9.6 º C at Chai Badan Lop Buri on 29 Nov. |
Eastern
Cool weather nearly the whole areas with cold weather in some areas in the first half of the period then increasing in temperature and cool weather in several areas. Cold weather in the mountainous areas and mountain tops. Scattered rain in upper part on the last day of the period.
| Max Rain | Max. Temp. | Min. Temp. |
| 12.3 mm at Soi Dao Chanthaburi on 4 Dec. | 13.4 º C at Sanam Chai Khet Chachoengsao on 29 Nov. (10.4 º C at Khao Kheow, Mueang Nakhon Nayok Nakhon Nayok on 28 Nov.) |
Southern (East Coast)
Cool weather nearly the whole areas with cold weather in some areas in the upper portion in the first half of the period. Isolated rain at the beginning of the period and fairly widespread rain on the last day of the period with heavy to very heavy rainfall in some areas on the first and the last days of the period. Flooding continued from the previous period in Surat Thani, Nakhon Si Thammarat, Songkhla, Phatthalung, Pattani, Yala and Narathiwat provinces.
| Max Rain | Max. Temp. | Min. Temp. |
| 99.6 mm at Nong Chik Pattani on 28 Nov. | 13.4 º C at Nong Plub Agromet. Stn., Hua Hin Prachuap Khiri Khan on 29 Nov. |
Southern (West Coast)
Cool weather nearly the whole areas almost the period. Isolated light rain in some areas on the last day of the period. Flooding continued in Trang and Satun provinces.
| Max Rain | Max. Temp. | Min. Temp. |
| 1.2 mm at Mueang Phuket Phuket on 4 Dec. | 19.8 º C at Mueang Ranong Ranong on 30 Nov. |
Bangkok Metropolitan
Cool weather in general at the beginning and the middle of the period with cold weather in some areas in vicinity in the first half of the period. Isolated light rain in some areas on the last day of the period.
| Max Rain | Max. Temp. | Min. Temp. |
| 0.1 mm at Bang Na Agromet. Stn. Bang Na on 4 Dec. | 16.9 º C at Don Mueang Airport Khet Don Mueang on 28 Nov. (12.1 º C at Kamphaeng Saen Nakhon Prathom on 29 Nov.) |
Announcement Date 05 December 2025 10:44