Thailand
20 April 2026 - 26 April 2026The heat low-pressure cell covered upper Thailand almost the week. Additonally, the southerly and southeasterly winds prevailed over the mentioned areas in the first half and on the last day of the week. These conditions caused generally hot weather over upper Thailand almost the week, with very hot weather in several areas in the northern and central regions. In the second half of the week, the high-pressure area from China extended its ridge to cover the northeastern region of Thailand and the South China Sea while hot weather persisted over Thailand, causing rainfall with thunderstorm and gusty wind over upper Thailand in several areas at that period. For the southern region, hot weather in most areas with rainfall occurred in some araes due to the influence of the easterly and southeasterly winds prevailed over the Gulf of Thailand , the southern region and the Andaman Sea.
Region Weather Summary
20 April 2026 - 26 April 2026Northern
Hot weather in general almost the week and very hot weather in several areas. Rainfall was observed mainly in the second half of the week with scattered rain almost the week and heavy rainfall in some areas on 23 and 25 Apr. Gusty wind was reported in Phare and Uttaradit provinces on 23 Apr., Phayao province on 23, 25 and 26 Apr., Phetchabun province on 23 and 26 Apr., Phitsanulok, Nan and Tak provinces on 24 Apr., Chiang Mai province during 24-26 Apr., Mae Hong Son and Lampang provinces on 25 Apr. and Chiang Rai province on 26 Apr. Hail was reported in Chiang Mai, Lampang and Lamphun provinces on 24 Apr.
| Max Rain | Max. Temp. | Min. Temp. |
| 86.4 mm at Phrom Phiram District Agricultural Extension Office Phitsanulok on 25 Apr. | 42.2 º C at Thoen Lampang on 22 Apr. |
Northeastern
Hot weather in general in the first half of the week then decreasing in temperature but still hot weather in the lower portion. Rainfall was observed mainly in the second half of the week with isolated to scattered rain and heavy to very heavy in some areas. Gusty wind was reported in Udon Thani province on 23 Apr., Amnat Charoen, Chaiyaphum, Loei, Nakhon Ratchasima, Sakon N akhon, Khon Kaen and Mukdahan provinces on 24 Apr. Flooding was reported in Kalasin province on 24 Apr.
| Max Rain | Max. Temp. | Min. Temp. |
| 142.0 mm at Tao Ngoi Sakon Nakhon on 24 Apr. | 39.6 º C at Mueang Nakhon Ratchasima Nakhon Ratchasima on 22,23 Apr. |
Central
Hot weather nearly the whole areas and very hot weather in several areas almost the week. Isolated to scattered rain in the second half of the week with heavy to very heavy in some areas at the end of the week. Gusty wind was reported in Lop Buri province on 24 Apr., Saraburi and Sing Buri provinces on 25 Apr.
| Max Rain | Max. Temp. | Min. Temp. |
| 93.4 mm at Ban Phraek Phra Nakhon Si Ayutthaya on 26 Apr. | 41.7 º C at Chai Badan Lop Buri on 23 Apr. |
Eastern
Hot weather mainly in upper portion. Isolated to scattered rain throughout the week with heavy rainfall in some areas on 20, 24 and 25 Apr. Gusty wind was reported in Chachoengsao province on 25 Apr.
| Max Rain | Max. Temp. | Min. Temp. |
| 65.9 mm at Ko Kut Trat on 20 Apr. | 39.2 º C at Mueang Sa Kaeo Sa Kaeo on 23 Apr. |
Southern (East Coast)
Hot weather nearly the whole areas. Isolated rain with heavy rainfall in some areas on 23 Apr.
| Max Rain | Max. Temp. | Min. Temp. |
| 41.0 mm at Ban Na Doem Surat Thani on 23 Apr. | 39.8 º C at Nong Plub Agromet. Stn., Hua Hin Prachuap Khiri Khan on 20 Apr. |
Southern (West Coast)
Hot weather nearly the whole areas. Isolated to scattered rain with heavy rainfall in some areas at the beginning of the week.
| Max Rain | Max. Temp. | Min. Temp. |
| 41.5 mm at Pak Jan Self-Help Settlement, Kra Buri Ranong on 20 Apr. | 38.2 º C at Mueang Trang Trang on 25 Apr. |
Bangkok Metropolitan
Hot weather nearly the whole areas and very hot weather on 20 Apr. Isolated rain in the second half of the week.
| Max Rain | Max. Temp. | Min. Temp. |
| 28.3 mm at Suwan Plabpla Pittayakom School Khet Taling Chan on 24 Apr. (25.5 mm at Pathum Thani Agromet. Stn., Khlong Luang Pathum Thani on 24 Apr.) | 37.7 º C at Queen Sirikit National Convention Center Khet Khlong Toei on 26 Apr. (40.0 º C at Pathum Thani Agromet. Stn., Khlong Luang Pathum Thani on 20 Apr.) |
Announcement Date 27 April 2026 12:45