July in Chiang Mai averages a daily high of 32.4°C. Expect roughly 19.8 wet days totalling 151.2mm. 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 July data.