April in Chiang Mai averages a daily high of 36.8°C. Expect roughly 5.9 wet days totalling 59.9mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Chiang Mai is December–January.
Based on CHIANG MAI, TH (0.8km), 1995–2024. 12 years of April data.