When to go
The Best Time to Visit Chiang Mai
Month-by-month climate data for Chiang Mai, Thailand — daily highs and lows, rain days, and an honest verdict for every month of the year.
Warmest in Chiang Mai: Apr (36°C / 97°F) · Coolest: Jan (28°C / 82°F) · Wettest: Aug (~30 rain days)
Daily highs / lows in °C · bars show rain days per month · ERA5 climate normals (2020–2024)
Chiang Mai climate, month by month
January
28° / 17°C
~3 rain days
Excellent
February
30° / 18°C
~2 rain days
Excellent
March
35° / 21°C
~2 rain days
Good
April
36° / 24°C
~8 rain days
Fair
May
34° / 24°C
~21 rain days
Tough
June
32° / 24°C
~27 rain days
Fair
July
31° / 24°C
~28 rain days
Fair
August
30° / 24°C
~30 rain days
Fair
September
30° / 23°C
~26 rain days
Fair
October
29° / 22°C
~19 rain days
Good
November
29° / 20°C
~9 rain days
Excellent
December
28° / 18°C
~2 rain days
Excellent
Plan around it
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