Chiang Mai Climate by Month
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.
The graphs below provide an overview of the climate in Chiang Mai (Chiang Mai Province), Thailand. They present long-term patterns and averages of weather conditions over a 30-year period.