The 10-day span for Chiang Mai runs from a high near 82° on Friday down to 68° overnight on Monday. About 1.9 in of precipitation is expected in total; the most likely wet day is Sunday (92% chance). Longer view: a tropical climate — warm all year, with the calendar split into wet and dry rather than hot and cold.
Chiang Mai, Thailand · 18.79°N, 98.99°E · Asia/Bangkok · Forecast computed for these exact coordinates