Chiang Mai Weather & Climate: Best Time to Visit

The climate in Chiang Mai experiences moderate temperature changes, with mild shifts between seasons. Average daytime temperatures reach a very hot 38°C (100°F) in April. In December, the coolest month of the year, temperatures drop to a comfortable 30°C (86°F).

At night, temperatures range from around 25°C (77°F) in April to 15°C (59°F) in December.

Check out our detailed temperature page for more information.

Temperature ranges by month

Chiang Mai has a relatively rainy climate with high precipitation levels, averaging 1197 mm (47 in) of rainfall annually. Chiang Mai can be quite wet during August, receiving approximately 260 mm (10 in) of precipitation over 21 rainy days.

In contrast, during the driest month (February), you will experience much drier conditions, with 4.8 mm (0.2 in) of precipitation 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

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

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%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year

The mean wind speed over the year ranges from () in January, November and December to 1 m/s (2 knots) in February, March, April, May, June, July, August, September and October. What does this mean?

The mean monthly wind speed over the year (meters per second)