Best time to visit Chiang Mai
The best months to visit Chiang Mai are December, January and November, based on month-by-month temperature and rainfall data. The full year of weather, daylight, holidays, and festival timing is below.
December, January and November score best for Chiang Mai weather:
- January30° / 15°CJanuary is cool-season Chiang Mai, excellent for Doi Suthep mornings and night markets with a light layer.
- November31° / 19°CNovember is prime cool season and Yi Peng-Loi Krathong time, so reserve hotels and river-area transport early.
- December29° / 16°CDecember is dry and cool at night, strong for night markets, temple walks, and mountain viewpoints.
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By TripSapien Research · Updated May 20, 2026
Chiang Mai weather by month
| Month | High | Low | Rain (mm) | Rainy days | Daylight |
|---|---|---|---|---|---|
| JanuaryBest weather | 30° | 15° | 10 | 1 | 11h |
| February | 33° | 16° | 10 | 1 | 11h |
| March | 35° | 20° | 20 | 2 | 12h |
| April | 37° | 23° | 55 | 6 | 12h |
| May | 35° | 24° | 155 | 15 | 13h |
| June | 33° | 24° | 115 | 16 | 13h |
| July | 32° | 24° | 155 | 18 | 13h |
| August | 32° | 24° | 225 | 21 | 13h |
| September | 32° | 23° | 200 | 17 | 12h |
| October | 32° | 22° | 120 | 12 | 12h |
| NovemberBest weather | 31° | 19° | 50 | 5 | 11h |
| DecemberBest weather | 29° | 16° | 20 | 2 | 11h |
Temperatures in °C. Long-term monthly averages.
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Chiang Mai month by month
JanuaryBest weather
Chiang Mai in January: 30°C high, 15.1°C low, 10mm rain over 1 days, 11h daylight. Hot and dry — outdoor friendly, hydrate.
Chiang Mai Flower Festival · Bo Sang Umbrella & Sankampang Handicrafts Festival
February
Chiang Mai in February: 32.9°C high, 16.3°C low, 10mm rain over 1 days, 11.4h daylight. Hot and dry — outdoor friendly, hydrate.
Chiang Mai Flower Festival
March
Chiang Mai in March: 35.4°C high, 19.6°C low, 20mm rain over 2 days, 11.9h daylight. Hot and dry — outdoor friendly, hydrate.
April
Chiang Mai in April: 36.7°C high, 22.9°C low, 55mm rain over 6 days, 12.4h daylight. Hot and dry — outdoor friendly, hydrate.
Songkran Festival
May
Chiang Mai in May: 34.7°C high, 23.8°C low, 155mm rain over 15 days, 12.9h daylight. Hot and rainy — afternoon storms, plan indoor afternoons.
Inthakin or Tham Boon Khan Dok
June
Chiang Mai in June: 33.2°C high, 24.1°C low, 115mm rain over 16 days, 13.1h daylight. Hot and rainy — afternoon storms, plan indoor afternoons.
Inthakin or Tham Boon Khan Dok
July
Chiang Mai in July: 32.2°C high, 23.9°C low, 155mm rain over 18 days, 13h daylight. Hot and rainy — afternoon storms, plan indoor afternoons.
August
Chiang Mai in August: 31.6°C high, 23.7°C low, 225mm rain over 21 days, 12.6h daylight. Hot and rainy — afternoon storms, plan indoor afternoons.
September
Chiang Mai in September: 32°C high, 23.4°C low, 200mm rain over 17 days, 12.1h daylight. Hot and rainy — afternoon storms, plan indoor afternoons.
October
Chiang Mai in October: 31.8°C high, 22.2°C low, 120mm rain over 12 days, 11.6h daylight. Hot and rainy — afternoon storms, plan indoor afternoons.
NovemberBest weather
Chiang Mai in November: 30.9°C high, 19.3°C low, 50mm rain over 5 days, 11.1h daylight. Hot and dry — outdoor friendly, hydrate.
Loi Krathong and Yi Peng Festivals
DecemberBest weather
Chiang Mai in December: 29.3°C high, 16.3°C low, 20mm rain over 2 days, 10.9h daylight. Hot and dry — outdoor friendly, hydrate.
Chiang Mai Flower Festival
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