Chiang Mai weather by month & the best time to visit
🇹🇭 Thailand · regional city · tropical — wet & dry seasons climate
The best time to visit Chiang Mai is February — its sunniest month (Sunshine Score 91/100), with December and January close behind. Chiang Mai averages about 2,275 hours of sunshine a year. Daytime highs around 32°C / 90°F and roughly 5 mm of rain in February.
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- Sun hours / year
- 2,275
- Sunniest month
- February
- Peak score
- 91/100
- Rain / year
- 1,246 mm
- Midday UV at peak
- 9 (very high)
- Population
- 397k
- Elevation
- 310 m
When is the best time to visit Chiang Mai?
For sunshine, the best time to visit Chiang Mai is February, then December and January. The dullest month is April (40/100, 63 mm of rain). The full month-by-month picture is in the table below.
How sunny is Chiang Mai?
Chiang Mai gets a moderate 2,275 hours of sunshine a year. 51 Sunshine Score points separate February (91) from April (40), so the month you pick matters. It ranks #14 of 24 destinations in Thailand for annual sunshine, below the national median of 2,329 hours. Rain has a clear season: the wettest stretch, around August, carries about 51% of the annual 1,246 mm.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV |
|---|---|---|---|---|---|
| January | 89 | 28° / 82°F | 16° / 61°F | 15 mm | 7 |
| February | 91 | 32° / 90°F | 17° / 63°F | 5 mm | 8 |
| March | 62 | 35° / 95°F | 20° / 68°F | 23 mm | 8 |
| April | 40 | 37° / 99°F | 23° / 73°F | 63 mm | 9 |
| May | 52 | 34° / 93°F | 24° / 75°F | 189 mm | 9 |
| June | 66 | 32° / 90°F | 24° / 75°F | 141 mm | 8 |
| July | 65 | 31° / 88°F | 23° / 73°F | 178 mm | 8 |
| August | 65 | 30° / 86°F | 23° / 73°F | 237 mm | 8 |
| September | 65 | 30° / 86°F | 23° / 73°F | 222 mm | 8 |
| October | 70 | 29° / 84°F | 22° / 72°F | 123 mm | 8 |
| November | 85 | 28° / 82°F | 19° / 66°F | 37 mm | 7 |
| December | 90 | 27° / 81°F | 16° / 61°F | 13 mm | 7 |
See Chiang Mai on the interactive sunshine globe →
Nearby places for sunshine
- Chiang Rai Thailand · 163 km · best in Feb · 2,393 h sun/yr
- Phitsanulok Thailand · 261 km · best in Jan · 2,511 h sun/yr
- Yangon Myanmar (Burma) · 364 km · best in Dec · 2,311 h sun/yr
- Vientiane Laos · 390 km · best in Jan · 2,437 h sun/yr
- Jinghong (Gasa) China · 403 km · best in Feb · 2,193 h sun/yr
- Udon Thani Thailand · 433 km · best in Jan · 2,438 h sun/yr
Nearest destinations
- Mae Hong Son Thailand · 120 km · 2,542 h sun/yr · best in Feb
- Mong Hsat Myanmar (Burma) · 197 km · 2,330 h sun/yr · best in Feb
- Loikaw Myanmar (Burma) · 210 km · 2,541 h sun/yr · best in Feb
- Ton Phueng Laos · 214 km · 2,275 h sun/yr · best in Feb
- Tachileik Myanmar (Burma) · 216 km · 2,330 h sun/yr · best in Feb
Head-to-head
How Chiang Mai compares month by month: Chiang Mai vs Yangon · Chiang Mai vs Chiang Rai · Chiang Mai vs Phitsanulok · all comparisons
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