Weather in Thailand All countries Weather in Thailand Weather in Thailand by months: JanuaryFebruaryMarchAprilMayJuneJulyAugustSeptemberOctoberNovemberDecember Weather by city City Now Sea water Rain Wind Bangkok +29°C — 20% 2 m/s Khao Lak +27°C +31°C 20% 2 m/s Ko Kud +28°C +30°C 1% 2 m/s Ko Samet +30°C +31°C 0% 3 m/s Ko Chang +27°C +30°C 10% 3 m/s Krabi +26°C +32°C 10% 2 m/s Pattaya +29°C +30°C 10% 3 m/s Phuket +27°C +30°C 10% 4 m/s Rayong +29°C +31°C 10% 2 m/s Samui +27°C +32°C 20% 4 m/s Hua Hin +29°C +31°C 20% 2 m/s