January in Chiang Mai averages a daily high of 30.1°C. Rain is rare — about 1 wet days and 5.5mm across the month. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Chiang Mai is December–January.
Based on CHIANG MAI, TH (0.8km), 1995–2024. 16 years of January data.