Thailand
17 กรกฎาคม 2569 - 23 กรกฎาคม 2569The southwest monsoon prevailed over the Andaman Sea, Thailand and the Gulf of Thailand throughout the period, weakening on 20 Jul. before strengthening in the second half of the period. In addition, the low-pressure area covered upper Vietnam almost the period. These conditions brought rainfall over Thailand mainly on the first day and in the second half of the period.
Region Weather Summary
17 กรกฎาคม 2569 - 23 กรกฎาคม 2569Northern
Scattered rain in the first half of the period then increasing in rainfall to fairly widespread rain. Heavy rainfall occurred in some areas on 17 , 19 and 23 Jul. Flooding was reported in Chiang Mai province on 22 Jul. Landslides were reported in Nan province on 21 Jul.
| Max Rain | Max. Temp. | Min. Temp. |
| 54.7 mm at Mae Sot Tak on 23 Jul. |
Northeastern
Scattered to fairly widespread rain on the first day and in the second half of the period while isolated rain during 18-20 Jul. Heavy rainfall occurred in some areas almost the period.
| Max Rain | Max. Temp. | Min. Temp. |
| 80.0 mm at Ubon Ratchathani Agromet. Stn., Sawang Wirawong Ubon Ratchathani on 23 Jul. |
Central
Scattered to fairly widespread rain on the first day and at the end of the period with heavy rainfall in some areas at the end of the period while isolated rain in some areas during 18-21 Jul. Gusty wind was reported in Saraburi and Lop Buri provinces on 17 Jul.
| Max Rain | Max. Temp. | Min. Temp. |
| 47.0 mm at Phatthana Nikhom Lop Buri on 22 Jul. |
Eastern
Fairly widespread rain on the first day and at the end of the period with heavy to very heavy rainfall while isolated to scattered during 18-21 Jul.
| Max Rain | Max. Temp. | Min. Temp. |
| 143.8 mm at Laem Sing Chanthaburi on 22 Jul. |
Southern (East Coast)
Scattered rain at the beginning and on the last day of the period with heavy rainfall in some areas and very heavy rainfall in some areas on 17 Jul. while isolated rain during 19-22 Jul.
| Max Rain | Max. Temp. | Min. Temp. |
| 94.0 mm at Rueso Narathiwat on 17 Jul. |
Southern (West Coast)
Scattered to fairly widespread rain on the first day and at the end of the period with heavy rainfall in some areas on 23 Jul. while isolated rain during 18-20 Jul.
| Max Rain | Max. Temp. | Min. Temp. |
| 41.8 mm at Suk Samran Ranong on 23 Jul. |
Bangkok Metropolitan
Scattered to fairly widespread rain on the first day and at the end of the period with heavy rainfall in some areas at the end of the period. Rainfall hardly reported during 18-20 Jul.
| Max Rain | Max. Temp. | Min. Temp. |
| 70.4 mm at Wat Bang Bon School Khet Bang Bon on 22 Jul. (45.0 mm at Phutthamonthon Nakhon Pathom on 22 Jul.) |
Announcement Date 24 July 2026 11:35