Best Time to Visit Chiang Mai
Thailand · 30-year monthly climate averages
☀️ When to go
Based on 30 years of climate data, the most comfortable months to visit Chiang Mai are January, November and December, when daytime temperatures are agreeable and rainfall is relatively low.
Climate profile
Chiang Mai sees its warmest weather in April, when daytime highs average around 37°C, and its coolest in December (around 29°C).
Annual precipitation totals roughly 1139mm — August is typically the wettest month (~223mm) and February the driest (~10mm).
A distinctly wetter period runs from May to October — worth planning around if you prefer dry days.
March is the sunniest month, with about 268 hours of sunshine.
Year at a glance
🟧 avg daytime high · 🟦 dashed: avg nighttime low · bars: monthly rainfall
🔥 Recent heat vs normal
Daily forecast highs vs the 30-year normal — last 37 days
Each bar is one day: orange above normal, blue below.
Month by month
| Month | High / Low | Rainfall | Travel rating |
|---|---|---|---|
| January | 30° / 16°C | 11mm | 👍 Good |
| February | 33° / 17°C | 10mm | 👍 Good |
| March | 35° / 20°C | 20mm | 🤔 Fair |
| April | 37° / 23°C | 54mm | 🤔 Fair |
| May | 35° / 24°C | 168mm | ⚠️ Challenging |
| June | 33° / 25°C | 118mm | 🤔 Fair |
| July | 32° / 24°C | 149mm | 🤔 Fair |
| August | 32° / 24°C | 223mm | ⚠️ Challenging |
| September | 32° / 24°C | 207mm | ⚠️ Challenging |
| October | 32° / 23°C | 124mm | 🤔 Fair |
| November | 31° / 20°C | 41mm | 👍 Good |
| December | 29° / 17°C | 14mm | 🌟 Great |
FAQ
- What is the best time to visit Chiang Mai?
- Based on 30 years of climate data, the most comfortable months to visit Chiang Mai are January, November and December, when daytime temperatures are agreeable and rainfall is relatively low.
- What is the hottest month in Chiang Mai?
- April is typically the hottest month in Chiang Mai, with average daytime highs around 37°C.
- What is the rainiest month in Chiang Mai?
- August is usually the wettest month, with around 223mm of precipitation.