Thailand
19 December 2025 - 25 December 2025The high-pressure area from China which covered upper Thailand throughout the period weakened in the second half of the period. In addition, the northwesterly wind in the upper level prevailed over upper Thailand at the beginning and the middle of the period. These conditions caused cool weather over upper Thailand, particularly the northern and northeastern where cold weather were observed in some places. For the southern region, the northeast monsoon which prevailed over the Gulf of Thailand, the southern region and the Andaman Sea throughout the period strengthened on the last day of the period. This brought rainfall in the southern region, mainly along the east coast.
Region Weather Summary
19 December 2025 - 25 December 2025Northern
Generally cool weather with cold weather in several areas mostly in upper part. Cold to very cold weather in the mountainous areas and mountain tops. Frost was reported in Chiang Mai province on 19, 20, 21 and 23 Dec.
| Max Rain | Max. Temp. | Min. Temp. |
| 11.2 º C at Umphang Tak on 22 Dec. (2.5 º C at Doi Inthanon, Chom Thong Chiang Mai on 19 Dec.) |
Northeastern
Generally cool weather with cold weather in some areas over upper part in the first half of the period. Cold weather in the mountainous areas and mountain tops.
| Max Rain | Max. Temp. | Min. Temp. |
| 14.0 º C at Sakon Nakhon Agromet. Stn., Sakon Nakhon on 19 Dec. Mueang Sakon Nakhon (9.0 º C at Phu Kradung National Park, Phu Kradung Loei on 21 Dec.) |
Central
Generally cool weather with cold weather in some areas on 20 and 21 Dec.
| Max Rain | Max. Temp. | Min. Temp. |
| 16.0 º C at Chai Badan Lop Buri on 20,21 Dec. |
Eastern
Cool weather nearly the whole areas. Cold weather in the mountainous areas and mountain tops.
| Max Rain | Max. Temp. | Min. Temp. |
| 1.5 mm at Khlong Yai Trat on 25 Dec. | 17.0 º C at Sanam Chai Khet Chachoengsao on 21 Dec. 17.0 º C at Phliu Agromet. Stn., Khlung Chanthaburi on 21 Dec. (12.8 º C at Khao Kheow, Mueang Nakhon Nayok Nakhon Nayok on 20 Dec.) |
Southern (East Coast)
Cool weather mainly in the upper and central part. Scattered rain on the first day and the last day of the period with heavy to very heavy rainfall in some areas on the first day of the period and at the end of the period. Isolated rain on the rest days.
| Max Rain | Max. Temp. | Min. Temp. |
| 154.0 mm at Mai Kaen Pattani on 25 Dec. | 16.1 º C at Nong Plub Agromet. Stn., Hua Hin Prachuap Khiri Khan on 22 Dec. |
Southern (West Coast)
Cool weather in several areas in the second half of the period. Isolated light rain on the first day and the last day of the period.
| Max Rain | Max. Temp. | Min. Temp. |
| 7.8 mm at Nuea Khlong Krabi on 25 Dec. | 19.8 º C at Takua Pa Phang-nga on 20 Dec. |
Bangkok Metropolitan
Cool weather nearly the whole areas on 19 and 21 Dec. Cool weather in some areas on the rest days.
| Max Rain | Max. Temp. | Min. Temp. |
| 21.5 º C at Bang Na Agromet. Stn. Khet Bang Na on 21 Dec. ( 16.5 º C at Kamphaeng Saen Nakhon Pathom on 21 Dec.) |
Announcement Date 26 December 2025 10:49