Three Distinct Microclimates Across the Kingdom
Because Thailand stretches 1,650 km from the Himalayan foothills of Chiang Rai down to the Malaysian border at Koh Lipe, there is always a sunny region to visit in any month of the year. Use our interactive 12-Month Thailand Seasonal & Monsoon Calendar to check your exact travel month.
- Best Overall Window (November – February): Cool, dry, and breezy across Bangkok, Chiang Mai, and the Andaman Coast (note that Koh Samui/Phangan have their brief rainy season from mid-October to early December).
- The Northern "Smoky Season" Warning (Late Feb – Mid-April): Agricultural burning creates haze in Chiang Mai, Pai, and Chiang Rai during March—head south to Phuket, Krabi, Koh Lanta, Koh Samui, or Koh Tao instead!