Weather in Chiang Mai
There are 3 seasons in Chiang Mai: the cool season (November – February), hot season (March – June) and raining season (July to October).
During the cool season, temperature ranges between 14°C and 25°C. How cold it is exactly depends on where you are, in the countryside temperature can get as low as 10°C, early morning and nights in the city will range about 15°C.
During the hot season, temperatures stay between 25°C and 40°C.
Raining season sees the temperatures hovering over 30°C. Heavy downpours and small drizzles can be expected throughout the day.
The best month to visit Chiang Mai will be February, when the weather is almost perfect.