Weekly Weather Summary
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January 14, 2019 - January 20, 2019Max. Rainfall AmountMax. Temperature
Thailand
The weak high pressure area covered upper Thailand and the South China Sea during the first half of the week then another moderate high pressure area from China extended its ridge to cover upper Thailand and later weakened. In addition, the westerly wind in upper level prevailed over the northern part during the end of the week. These conditions caused general cool weather nearly the whole week with cold weather in some areas during the middle and the end of the week in the northern and the northeastern parts and cool weather in several areas for the rest parts. There was isolate rain in upper Thailand. For the southern part, the northeast monsoon which prevailed over the Gulf of Thailand and southern part was moderate during the middle of the week that causing rainfall in the mentioned period.    
Northern Part
Cool weather nearly the whole areas during the first half of the week then decreasing in temperature with generally cool weather and cold weather in some areas. Cold to very cold weather in mountainous areas and mountain tops. Isolated light rain for few days. 4.6 mm at Tha Wang Pha Nan on 15 Jan  13.8 º C at Umphang Tak on 19 Jan. (0.8 º C at Kiew Mae Pan, Doi Inthanon Chiang Mai on 16 Jan.)  
Northeastern Part
Generally cool weather throughout the week with cold weather in some areas during the middle of the week. Cool to cold weather in mountainous areas and mountain tops. Isolated light rain on 15 Jan. 0.1 mm at Phu Ruea Loei on 15 Jan   15.0 ºC at Sakon Nakhon Agromet. Stn. Sakon Nakhon on 17 Jan. (10.0 º C at Phu Ruea National Park Loei on 18 Jan. And at Phu Luang Wildlife Sanctuary Loei on 19 Jan. 
Central Part
Cool weather in several areas. Isolated rain on 14, 15 and 18 Jan. 9.1 mm at Mueang Kanchanaburi on 15 Jan.  19.0 º C at Chai Badan Lopburi on 19 Jan. 
Eastern Part
Cool weather in several areas. Isolated rain on 14, 15, 16 and 19 Jan. 24.4 mm at Sattahip Chonburi on 15 Jan.  19.9 º C at Sanam Chai Khet Chachoengsao on 19 Jan. 
Southern Part (East Coast)
Cool weather in several areas. Scattered to fairly widespread rain with heavy rainfall in some areas during the middle of the week and isolated rain with heavy rainfall in some areas on the other day. 77.0 mm at Phra Phrom Nakhon Si Thammarat on 17 Jan.  20.2 º C at Mueang Prachup Khiri Khan on 19 Jan. 
Southern Part (West Coast)
Cool weather in some areas. Isolated rain with heavy rainfall in some areas except for scattered to fairly widespread rain with heavy rainfall in some areas on 14, 15 and 16 Jan. 71.7 mm at Phuket Airport Phuket on 14 Jan.  21.5 º C at Mueang Satun on 16 Jan. 
Metropolitan
Cool weather in some areas. Isolated rain on 14 and 15 Jan. 30.6 mm at Rat Burana District Office Khet Rat Burana on 14 Jan. Vicinity 18.9 mm at Municipal School 1 Samut Prakan on 15 Jan.   22.8 º C at Bangna Agromet. Stn. Khet Bangna on 20 Jan. Vicinity 20.5 º C at Kamphaeng Saen Nakhon Pathom on 14 Jan.  
Weekly total Rainfall and Weekly mean minimum temperature Map
Issued Date January 21, 2019