Year-round weather and climate in Chiang Mai, Thailand
Average temperatures in Chiang Mai run from an average low of 17°C63°F in January up to an average high of 38°C100°F in April. February is the driest month at 2 rainy days; August the wettest at 31. Here is the annual climate data, so you know what you are packing for.
Good to know
- Population
- 127K
- Currency
- THB
- Language
- Thai
- Time zone
- Bangkok
Best time to visit
The most pleasant weather falls in December, January, and February, offering a perfect balance of comfortable temperatures and clear skies.
Rain character
Tropical Downpours: Expect intense bursts of rain during wetter months. Pack quick-drying footwear and a compact umbrella.
Day-to-night swing
The Daypack Trap: Beware the "noon illusion". In months like April, crisp sunny days drop off a cliff by 14°C25°F at sunset. Always carry an evening layer.
Seasonality Profile
Humid Subtropical: Sweltering, wet summers accompanied by mild, drier winters.
Evening vibe
Seasonal Terraces: During the more temperate months, the city opens up with lively outdoor terraces. For the rest of the year, expect to dine indoors.
Sightseeing stamina
Summer Heat Fatigue: Midday heat in March, April, May, and June is intense. Pack high-SPF sunscreen and a wide-brimmed hat.
Average temperatures, sunshine, and rainfall
Average monthly weather in Chiang Mai, based on recent historical data. Essential insights on temperature swings, expected rainfall, and daily sunshine.
Bars span the average daily low to high. Feb is typically driest at 2 days (26mm); Aug the wettest at 31 days (398mm).
| Month | Average high | Average low | Sunshine hours | Rainy days | Total rainfall |
|---|---|---|---|---|---|
| Jan | 28°C / 82°F | 17°C / 63°F | 11h | 4 | 11mm |
| Feb | 30°C / 87°F | 18°C / 64°F | 11h | 2 | 26mm |
| Mar | 34°C / 93°F | 21°C / 69°F | 11h | 2 | 12mm |
| Apr | 38°C / 101°F | 24°C / 76°F | 11h | 3 | 9mm |
| May | 34°C / 94°F | 24°C / 76°F | 11h | 21 | 273mm |
| Jun | 32°C / 89°F | 24°C / 76°F | 10h | 28 | 297mm |
| Jul | 31°C / 87°F | 24°C / 75°F | 10h | 30 | 409mm |
| Aug | 30°C / 86°F | 24°C / 74°F | 8h | 31 | 398mm |
| Sep | 30°C / 86°F | 23°C / 74°F | 9h | 27 | 491mm |
| Oct | 30°C / 85°F | 22°C / 72°F | 10h | 20 | 248mm |
| Nov | 29°C / 84°F | 20°C / 69°F | 10h | 8 | 40mm |
| Dec | 28°C / 82°F | 19°C / 66°F | 11h | 3 | 33mm |
Weather data by Open-Meteo.com (opens in a new tab)
Frequently Asked Questions
When is the sunniest time of year to visit Chiang Mai?
The most sunshine in Chiang Mai comes around April, averaging 11 hours a month. If you're heading there then, pack your sunglasses and sunscreen.
What clothes should I pack for Chiang Mai?
Your packing list depends entirely on when you travel. Temperatures in Chiang Mai swing from an average low of 17°C63°F in January up to 38°C100°F in April. The Packola app builds a tailored packing list for you based on the live weather forecast for your exact travel dates.
Do I need to pack an umbrella for Chiang Mai?
Chiang Mai gets rain on about 179 days out of the year. The wettest month is August. If you're traveling during the rainy season, you'll definitely want to pack an umbrella and a light rain jacket.
Pack smarter.
Averages get you close, but the week you travel is what matters. Get the live forecast, a smart packing list, and discover the best local spots and activities in Chiang Mai with Packola.
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