Chiang Mai Climate & Weather

Chiang Mai Climate and Weather

Chiang Mai has a tropical climate, but is cooler and less humid than elsewhere in Thailand. Chiang Mai experiences monsoons. The south-west monsoon arrives from India at the end of May and lasts until November, with the heaviest downpours in August/September. Rain usually occurs in the late afternoon. Summer temperature range from 73­°F (23°C) to 91°F (33°C). Between November and May cool air blows in from China and northern Vietnam, bringing a dry season with mild days and balmy nights.

Temperatures are at their lowest in December/January with lows of 59°F (15°C), and it is chilly enough to require a warm jacket at night, although temperatures can still reach 86°F (30°C) during the day.

Become our Chiang Mai Travel Expert

We are looking for contributors for our Chiang Mai travel guide. If you are a local, a regular traveller to Chiang Mai or a travel professional with time to contribute and answer occasional forum questions, please contact us.


iExplore designs made-to-order, privately-guided adventure tours to Thailand and over 200 other world wonders. Come Back Different!


Intrepid Travel

Intrepid Travel, one of the world's leading suppliers of small group adventures, is focused on getting off the beaten track, interacting with the locals and having real life experiences throughout Thailand.


Thailand Travel Plan

Island hopping to hidden paradise. Sleep in floating huts and follow Khao Yai jungle trails. Build your own Thailand trip.