Chiang Mai Weather
Chiang Mai weather today, the 14-day forecast, and average temperature, rain and what to wear for every month — compared against Hong Kong. Best months to visit: Jan, Feb, Nov and Dec.
Chiang Mai current weather
Chiang Mai now (local time 14:00)
31°C
Drizzle
- Feels like
- 39°
- Humidity
- 72%
- Wind
- 4 km/h
Next 7 days · what to wear
22° – 31°C
Rain likely on 6 of 7 days
👕 Short sleeves, plus a light layer for air-conditioned interiors; it's wet, so pack a compact umbrella.
Chiang Mai 14-day forecast
Today
10/4
⛈️
31°
24°
💧75%
Mon
10/5
⛈️
28°
23°
💧94%
Tue
10/6
🌦️
29°
23°
💧97%
Wed
10/7
🌦️
29°
22°
💧69%
Thu
10/8
🌦️
30°
22°
💧41%
Fri
10/9
⛈️
30°
23°
💧27%
Sat
10/10
🌦️
30°
23°
💧51%
Sun
10/11
🌦️
29°
23°
💧64%
Mon
10/12
🌦️
30°
23°
💧47%
Tue
10/13
☁️
31°
23°
💧39%
Wed
10/14
☀️
31°
23°
💧37%
Thu
10/15
🌦️
31°
23°
💧41%
Fri
10/16
☀️
31°
23°
💧27%
Sat
10/17
☀️
31°
23°
💧31%
Best time to visit Chiang Mai
On temperature and rainfall, the most comfortable months in Chiang Mai are Jan, Feb, Nov and Dec. The hottest month is April (average high 36°C) and the coldest is December (average low 18°C).
Chiang Mai climate by month
| Month | Avg high | Avg low | Rain | Humidity | vs Hong Kong |
|---|---|---|---|---|---|
| JanBest | 28°C | 17°C | 14 mm | 68% | +6°C |
| FebBest | 30°C | 18°C | 38 mm | 59% | +6°C |
| Mar | 35°C | 21°C | 14 mm | 51% | +8°C |
| Apr | 36°C | 24°C | 77 mm | 55% | +6°C |
| May | 34°C | 25°C | 232 mm | 71% | +2°C |
| Jun | 32°C | 24°C | 236 mm | 80% | -1°C |
| Jul | 31°C | 24°C | 375 mm | 84% | -2°C |
| Aug | 30°C | 24°C | 424 mm | 87% | -2°C |
| Sep | 30°C | 23°C | 416 mm | 87% | -2°C |
| Oct | 29°C | 22°C | 219 mm | 84% | 0°C |
| NovBest | 29°C | 20°C | 60 mm | 79% | +2°C |
| DecBest | 28°C | 18°C | 21 mm | 74% | +4°C |
Data: Open-Meteo historical weather, 2020–2024 averages (ERA5); Hong Kong comparison uses HKO 1991–2020 normals.
Chiang Mai weather month by month: what to wear
Chiang Mai in OctoberThis month
October in Chiang Mai is warm to hot: average highs of 29°C and lows of 22°C, around 219 mm of rain (wet) and 84% humidity — about the same as Hong Kong.
👕 Short sleeves, plus a light layer for air-conditioned interiors; it's wet, so pack a compact umbrella; humid, so quick-dry fabrics help.
Chiang Mai in NovemberBest month
November in Chiang Mai is warm to hot: average highs of 29°C and lows of 20°C, around 60 mm of rain (mostly dry) and 79% humidity — about 2°C warmer than Hong Kong. It's one of the most comfortable months of the year to visit.
👕 Short sleeves, plus a light layer for air-conditioned interiors.
Chiang Mai in DecemberBest month
December in Chiang Mai is warm to hot: average highs of 28°C and lows of 18°C, around 21 mm of rain (dry) and 74% humidity — about 4°C warmer than Hong Kong. It's one of the most comfortable months of the year to visit.
👕 Short sleeves, plus a light layer for air-conditioned interiors; big day–night swing, so dress in layers.
Chiang Mai in JanuaryBest month
January in Chiang Mai is warm to hot: average highs of 28°C and lows of 17°C, around 14 mm of rain (dry) and 68% humidity — about 6°C warmer than Hong Kong. It's one of the most comfortable months of the year to visit.
👕 Short sleeves, plus a light layer for air-conditioned interiors; big day–night swing, so dress in layers.
Chiang Mai in FebruaryBest month
February in Chiang Mai is warm to hot: average highs of 30°C and lows of 18°C, around 38 mm of rain (mostly dry) and 59% humidity — about 6°C warmer than Hong Kong. It's one of the most comfortable months of the year to visit.
👕 T-shirts, shorts and breathable fabrics; sunscreen and water; big day–night swing, so dress in layers.
Chiang Mai in March
March in Chiang Mai is hot: average highs of 35°C and lows of 21°C, around 14 mm of rain (dry) and 51% humidity — about 8°C warmer than Hong Kong.
👕 T-shirts, shorts and breathable fabrics; sunscreen and water; big day–night swing, so dress in layers.
Chiang Mai in April
April in Chiang Mai is hot: average highs of 36°C and lows of 24°C, around 77 mm of rain (mostly dry) and 55% humidity — about 6°C warmer than Hong Kong.
👕 T-shirts, shorts and breathable fabrics; sunscreen and water; big day–night swing, so dress in layers.
Chiang Mai in May
May in Chiang Mai is hot: average highs of 34°C and lows of 25°C, around 232 mm of rain (wet) and 71% humidity — about 2°C warmer than Hong Kong.
👕 T-shirts, shorts and breathable fabrics; sunscreen and water; big day–night swing, so dress in layers; it's wet, so pack a compact umbrella.
Chiang Mai in June
June in Chiang Mai is hot: average highs of 32°C and lows of 24°C, around 236 mm of rain (wet) and 80% humidity — about the same as Hong Kong.
👕 T-shirts, shorts and breathable fabrics; sunscreen and water; it's wet, so pack a compact umbrella; humid, so quick-dry fabrics help.
Chiang Mai in July
July in Chiang Mai is warm to hot: average highs of 31°C and lows of 24°C, around 375 mm of rain (very wet) and 84% humidity — about 2°C colder than Hong Kong.
👕 T-shirts, shorts and breathable fabrics; sunscreen and water; it's wet, so pack a compact umbrella; humid, so quick-dry fabrics help.
Chiang Mai in August
August in Chiang Mai is warm to hot: average highs of 30°C and lows of 24°C, around 424 mm of rain (very wet) and 87% humidity — about 2°C colder than Hong Kong.
👕 Short sleeves, plus a light layer for air-conditioned interiors; it's wet, so pack a compact umbrella; humid, so quick-dry fabrics help.
Chiang Mai in September
September in Chiang Mai is warm to hot: average highs of 30°C and lows of 23°C, around 416 mm of rain (very wet) and 87% humidity — about 2°C colder than Hong Kong.
👕 Short sleeves, plus a light layer for air-conditioned interiors; it's wet, so pack a compact umbrella; humid, so quick-dry fabrics help.
FAQ
›What is the best time to visit Chiang Mai?
On temperature and rainfall, the most comfortable months in Chiang Mai are Jan, Feb, Nov and Dec. The hottest month is April (average high 36°C) and the coldest is December (average low 18°C).
›What's the weather like in Chiang Mai in October, and what should I wear?
October in Chiang Mai is warm to hot: average highs of 29°C and lows of 22°C, around 219 mm of rain (wet) and 84% humidity — about the same as Hong Kong. What to wear: Short sleeves, plus a light layer for air-conditioned interiors; it's wet, so pack a compact umbrella; humid, so quick-dry fabrics help.
›What's the weather like in Chiang Mai in November, and what should I wear?
November in Chiang Mai is warm to hot: average highs of 29°C and lows of 20°C, around 60 mm of rain (mostly dry) and 79% humidity — about 2°C warmer than Hong Kong. It's one of the most comfortable months of the year to visit. What to wear: Short sleeves, plus a light layer for air-conditioned interiors.
›When is the rainy season in Chiang Mai?
Chiang Mai is wettest in August, with about 424 mm on average, and driest in January, with about 14 mm.
›How cold does Chiang Mai get? Does it snow?
The coldest month is December, averaging 28°C by day and 18°C at night. Snow is very unlikely.
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Forecast data: Open-Meteo.com (CC BY 4.0), refreshed every 3 hours. Hottest month: April; coldest: December.