Chiang Mai Weather and Climate: A Comprehensive Guide
The hot (summer) Season in Chiang-Mai extends from March through May. Daytime temperatures around 36°C can be unbearably hot during this period. The rainy season occurs from May through October and "the cool" (winter) season finds place from November through February.
Average maximum day and minimum night temperature
The climate in Chiang Mai experiences moderate temperature changes, with mild shifts between seasons. Average daytime temperatures reach a very hot 38°C in April. In January, the coolest month of the year, temperatures drop to a comfortable 30°C.
At night, you can expect cooler temperatures, with averages dropping to around 15°C during this month. Check out our detailed temperature page for more information.Temperature ranges by month
Precipitation and rainy days
Chiang Mai has a relatively rainy climate with high precipitation levels, averaging 1197 mm of rainfall annually. Chiang Mai can be quite wet during August, receiving approximately 260 mm of precipitation over 21 rainy days. In contrast February, experiences much drier conditions, with 4.8 mm of rainfall, spread across a single rainy day. For more details, please visit our Chiang Mai Precipitation page.The mean monthly precipitation over the year, including rain, hail and snow
The average number of days each month with precipitation
Sunshine over the year
Chiang Mai can be enjoyed more throughout the sunniest month of March under a blue sky, with approximately 9.8 hours of sunshine daily. In contrast, the city experiences much darker days in August, with only 3.9 hours of sunlight per day. Visit our detailed sunshine hours page for more information.Monthly hours of sunshine
Daily hours of sunshine
Average humidity
The relative humidity is high throughout the year in Chiang Mai.
The city experiences its highest humidity in August, reaching 81%. In March, the humidity drops to its lowest level at 52%. Explore our detailed page on humidity levels for further details.
Relative humidity over the year
Average wind speed
The mean wind speed over the year ranges from 0 m/s in January, November and December to 1 m/s in February, March, April, May, June, July, August, September and October.
The mean monthly wind speed over the year (meters per second)
almost clear and no rain clear and no rain almost clear and no rainForecast for Chiang Mai
2 m/s
2 m/s
3 m/s
The best time of year to visit Chiang Mai in Thailand
Other facts from our historical weather data:Rainy season in Chiang Mai occurs in the months of July, August and September.
Yes, the months of January, February, March and December are very dry.
April has an average maximum temperature of 38°C and is the hottest month of the year.
The coolest month is January with an average maximum temperature of 30°C.
August tops the wettest month list with 260 mm of rainfall.
February is the driest month with 5 mm of precipitation.
March is the sunniest month with an average of 295 hours of sunshine.
No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
