Weekly Weather Summary
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December 4, 2017 - December 10, 2017Max. Rainfall AmountMax. Temperature
Thailand
The rather active high pressure area covered upper Thailand and the South China Sea during the first half of the week then another high pressure area extended its ridge to cover the mention area and weakened on the last day of the week. These conditions caused cool weather over upper Thailand with cold weather in some areas of the northern and northeastern parts. Under the influence of the active northeast monsoon prevailed over the Gulf of Thailand and southern part causing abundant rainfall in southern part almost the week mainly along east coast.    
Northern Part
Cool weather almost the whole areas with cold weather in some areas of the upper portion. Cold to very cold weather in the mountainous areas and mountain tops. Isolated rain with heavy rainfall in some areas during the second half of the week. 36.5 mm at Mueang Chiang Rai on 9 Dec.  14.0 º C at Chiang Rai Agromet Stn. Chiang Rai on 5 Dec. (3.5 º C at Kew Mae Pan Chom Thong Chiang Mai on 4 Dec)  
Northeastern Part
Generally cool weather with cold weather in some areas. Cold weather in mountainous areas and mountaintop. Isolated light rain on 8 Dec. 0.9 mm at Phu Kradung National Park. Loei on 8 Dec.  14.8 º C at Nakhon Phanom Agromet Stn. Nakhon Phanom on 10 Dec. (10.0 º C at Phu Luang Wildlife Sanctuary Loei on 4 Dec. and at Phu Rua National Park. Loei on 5 Dec.) 
Central Part
Cool weather in some areas during early week then temperature was decreasing with cool weather nearly the whole areas. Isolated light rain on 4 Dec. 0.8 mm at Mueang Samut Songkhram on 4 Dec.  18.8 º C at Chaibadan Lop Buri on 10 Dec. 
Eastern Part
Cool weather in several areas during mid-week and weekend. Isolated light rain on 4 and 8 Dec. 7.5 mm at Ko Kut Trat on 4 Dec.  18.6 º C at Sanam Chai Khet Chachoengsao on 10 Dec. 
Southern Part (East Coast)
Cool weather in some areas. Fairly widespread to widespread rain almost the week with heavy to very heavy rainfall in several areas from Chumphon province southwards mainly during early week. Floods continuously occurred from last week at Surat Thani, Nakhon Si Thammarat, Pattalung, Songkhla and Pattani provinces. 450.0 mm at Phra Phrom Nakhon Si Thammarat on 5 Dec.  20.1 º C at Nong Plub Agromet Stn. Prachuap Kihiri Khan on 10 Dec 
Southern Part (West Coast)
Cool weather in some areas. Isolated to scattered rain with heavy to very heavy rainfall in some areas. Flood continuously occurred from last week at Trang province. 142.5 mm at Takua Pa Phang-nga on 7 Dec.  20.0 º C at Nuea Khlong Krabi on 6 Dec. 
Metropolitan
Cool weather in some areas except for cool weather almost the whole areas on the last day of the week.   22.0 º C at Bang Na Agromet Stn. Khet Bang Na on 10 Dec. (20.4 º C at Kamphaeng Saen Nakhon Pathom on 10 Dec.)  
Weekly total Rainfall and Weekly mean minimum temperature Map
Issued Date December 11, 2017