December
★ Best time
28° / 16°C
2 rain days
hot, dry
- very low rainfall (only 2 rain days)
- outside peak hazard season
- warm evenings without humidity overload
Best time to visit Chiang Mai
Chiang Mai, Thailand — ranked month by month from data: temperature, rainfall, snow, and peak hazard seasons. The standouts: December, January, November.
★ Best months to visit
January
★ Best time
29° / 14°C
1 rain days
hot, dry
- very low rainfall (only 1 rain days)
- outside peak hazard season
- warm evenings without humidity overload
November
★ Best time
30° / 19°C
5 rain days
hot
- very low rainfall (only 5 rain days)
- outside peak hazard season
- warm evenings without humidity overload
OK — shoulder months
February
OK
32° / 15°C
1 rain days
hot, dry
- very low rainfall (only 1 rain days)
- outside peak hazard season
- warm evenings without humidity overload
October
OK
31° / 22°C
10 rain days
hot, rainy
- manageable rain (10 days)
- outside peak hazard season
- warm evenings without humidity overload
March
OK
34° / 18°C
3 rain days
hot, dry
- very low rainfall (only 3 rain days)
- outside peak hazard season
- warm evenings without humidity overload
June
OK
33° / 23°C
12 rain days
hot, rainy
- outside peak hazard season
August
OK
31° / 23°C
17 rain days
hot, very wet
- outside peak hazard season
July
OK
32° / 23°C
15 rain days
hot, rainy
- outside peak hazard season
September
OK
31° / 23°C
18 rain days
hot, very wet
- outside peak hazard season
May
OK
34° / 23°C
12 rain days
hot, rainy
- outside peak hazard season
Months to skip
April
Skip
36° / 22°C
5 rain days
hot
- dangerously hot (avg high 36°C)
How we ranked these
Each month is scored on temperature comfort (18–27°C avg high is the sweet spot), rainfall (more rain days = lower score), snow days, and peak hazard seasons (hurricanes, monsoons, etc.). Green-tier months are within ideal range with no major issues. Yellow are workable but with trade-offs. Red has at least one significant problem — extreme heat or cold, heavy rain, or peak storm season.