Weekly Weather Summary
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April 2, 2021 - April 8, 2021Max. Rainfall AmountMax. Temperature
Thailand
The heat low pressure cell covered upper Thailand on the first and the last day of the period associated with the southerly and southeasterly wind prevailed over the lower northern, northeastern, central and eastern parts throughout the period. These conditions caused hot weather in most areas of upper Thailand during early and late period mainly in the northern and northeastern parts with very hot weather in several areas of the northern part and in some areas of the northeastern and central parts. By the way, the moderate high pressure area from China extended its ridge to cover upper Thailand accompanied with the westerly trough moved to cover the northern part during the middle period while hot weather existed in upper Thailand continued during early period causing more rainfall in upper Thailand during the mentioned time. Thunderstorms with gusty wind and heavy to very heavy rainfall were reported in several areas. For southern part, under the influence of the active low pressure cell over the Andaman Sea during early period accompanied with the southwesterly and southeasterly winds prevailed over the Gulf of Thailand and the southern part during the middle of the period. In addition, the easterly and southeasterly winds prevailed over the Gulf of Thailand and the southern part during late period caused rain in the southern part throughout the period with heavy to very heavy rainfall in some areas.    
Northern Part
Generally hot weather during early period with very hot weather in several areas. Fairly widespread rain except for isolated rain on the first day and late period. Heavy rainfall occurred in some areas during early and middle period and very heavy rainfall in some areas on 5 and 6 Apr. Thunderstorms with gusty wind occurred at Nan and Pichit provinces on 2 and 3 Apr., at Chiang Rai, Uttaradit, Lampang, Tak, Sukhothai, Phitsanulok and Phetchabun provinces on 3 Apr., at Phayao province on 3 and 4 Apr., at Chiang Mai province on 3 and 5 Apr. and at Tak province on 3 and 6 Apr. 109.5 mm at Mueang Tak on 6 Apr.  41.1 º C at Mueang Phetchabun on 3 Apr. 
Northeastern Part
Hot weather nearly the whole areas during early period with very hot weather in some areas at Surin province on 2 Apr. then the temperature was decreasing but hot weather remained in several areas during the second half of the period. Isolated rain with heavy rainfall in some areas almost the period except for fairly widespread rain with heavy rainfall in several areas and very heavy rainfall in some areas on 4 Apr. Thunderstorms with gusty wind occurred at Udon Thani and Sakon Nakhon provinces on 2 Apr., at Nong Bua Lam Phu and Surin provinces on 2 and 4 Apr., at Loei province on 3 Apr., and Khon Kaen, Roi Et, Maha Sarakham and Ubon Ratchathai provinces on 2 Apr. Thunderbolt occurred at Burirum and Surin provinces on 4 Apr. 100.0 mm at Prakhon Chai Burairam on 4 Apr.  40.3 º C at Surin Agromet. Stn. Surin on 2 Apr. 
Central Part
Hot weather nearly the whole areas during early period with very hot weather in some areas at Nakhon Sawan and Lop Buri provinces then the temperature dropped but hot weather in several areas on the last day of the period. Fairly widespread rain during the middle period and scattered rain for the rest days. Heavy rainfall occurred in some areas almost the period and very heavy rainfall in some areas on 4 Apr. Thunderstorms with gusty wind occurred at Chainat province on 3 Apr., at Singburi province on 3 and 4 Apr., at Nakhon Sawan province on 3 - 6 Apr. and at Uthai Thani, Saraburi and Angthong provinces on 4 Apr. 105.4 mm at Ban Rai School, Thong Pha Phum Kanchanaburi on 4 Apr.  41.7 º C at Chai Badan Lop Buri on 2 Apr. 
Eastern Part
Hot weather mainly in the upper portion almost the period. Fairly widespread rain during the middle period and isolated to scattered rain for the rest days. Heavy rainfall occurred in some areas almost the period and very heavy rainfall in some areas on 4, 6 and 7 Apr. Thunderstorms with gusty wind occurred at Prachin Buri province on 2 Apr., at Rayong province on 4 Apr., at Chachoengsao province on 4 and 8 Apr. and at Chanthaburi province on 6 Apr. Thunderstorms, gusty wind and flash flood occurred at Chon Buri province on 4 Apr. 153.0 mm at Khlung Chanthaburi on 6 Apr.  39.5 º C at Aranyaprathet Sa Kaeo on 2 Apr. 
Southern Part (East Coast)
Hot weather in several areas during early period. Fairly widespread rain during the middle period and isolated to scattered rain for the rest days. Heavy rainfall occurred in some areas on 4 – 7 Apr. 75.4 mm at Sadao Songkhla on 6 Apr.  38.0 º C at Nong Phlub Agromet. Stn. Prachuap Khiri Khan on 2 Apr. 
Southern Part (West Coast)
Hot weather in some areas of the lower portion. Fairly widespread rain on 2, 6 and 7 Apr. with heavy to very heavy rainfall in some areas and scattered rain for the rest days with heavy rainfall in some areas. Thunderstorms with gusty wind occurred at Phuket province on 6 Apr. 99.5 mm at Suk Samran Ranong on 6 Apr.  36.7 º C at Mueang Satun on 5 Apr. 
Metropolitan
Hot weather in most areas almost the period. Isolated to scattered rain with heavy rainfall in some areas on somedays except for fairly widespread rain with heavy to very heavy rainfall in some areas on 4 and 6 Apr. Thunderstorms with gusty wind occurred at Samut Prakan, Samut Sakhon and Pathum Thani provinces on 4 Apr. 51.0 mm at Wat Bung Thonglang School Khet Bang Kapi on 4 Apr. (168.0 mm at Kamphaeng Saen Nakhon Pathom on 4 Apr.)   37.0 º C at Bangkok Metropolis Khet Khlong Toei on 2 Apr. (39.0 º C at Pathumthani Agromet. Stn. Pathum Thani on 3 Apr.)  
Weekly total Rainfall and Weekly mean minimum temperature Map
Issued Date April 9, 2021