The coldest month in Chiang Mai is 65438+February. Chiang Mai, located in northern Thailand, is a city with four seasons like spring. The highest temperature in the whole year is about 30 degrees Celsius. The difference between the hottest July and August and the coldest June is only two or three degrees. However, the precipitation varies greatly. May to September is the rainy season every year, and it can rain more than 80% of the year.