Best Time to Visit
🇹🇭 Chiang Mai, Thailand · Asia
Based on 30-year climate data (1991-2020) from Open-Meteo
Jan
28°
16°
Great
Feb
31°
18°
Great
Mar
34°
21°
Good
Apr
36°
24°
Good
May
33°
24°
Fair
Jun
31°
24°
Good
Jul
30°
24°
Fair
Aug
29°
23°
Fair
Sep
29°
23°
Good
Oct
29°
21°
Good
Nov
28°
18°
Great
Dec
27°
16°
Great
| Month | High | Low | Rain Days | Sunshine | Humidity | UV | Rating | Details |
|---|---|---|---|---|---|---|---|---|
| JanuaryRecommended | 28°C | 16°C | 1 | 10h | 78% | 3 | Great | View |
| FebruaryRecommended | 31°C | 18°C | 1 | 11h | 78% | 3 | Great | View |
| March | 34°C | 21°C | 2 | 11h | 78% | 6 | Good | View |
| April | 36°C | 24°C | 5 | 11h | 78% | 6 | Good | View |
| May | 33°C | 24°C | 14 | 10h | 78% | 9 | Fair | View |
| June | 31°C | 24°C | 20 | 9h | 78% | 9 | Good | View |
| July | 30°C | 24°C | 23 | 7h | 78% | 9 | Fair | View |
| August | 29°C | 23°C | 25 | 7h | 78% | 9 | Fair | View |
| September | 29°C | 23°C | 24 | 8h | 78% | 6 | Good | View |
| October | 29°C | 21°C | 16 | 10h | 78% | 6 | Good | View |
| NovemberRecommended | 28°C | 18°C | 4 | 10h | 78% | 3 | Great | View |
| DecemberRecommended | 27°C | 16°C | 2 | 10h | 78% | 3 | Great | View |
Data source: Open-Meteo ERA5 reanalysis archive, 30-year historical normals (1991-2020). Temperatures in Celsius. Sunshine hours are daily averages.
Avg: 34°C high, 23°C low
Temperatures peak at 34°C (93°F), making midday heat intense. Occasional showers possible. Nights cool to 23°C (73°F).
Avg: 30°C high, 24°C low
Temperatures peak at 30°C (86°F), making midday heat intense. Rain is frequent, waterproof gear recommended. Nights cool to 24°C (75°F).
Avg: 29°C high, 21°C low
Comfortable warmth at 29°C (84°F), ideal for outdoor activities. Rain is frequent, waterproof gear recommended. Nights cool to 21°C (70°F).
Avg: 29°C high, 17°C low
Comfortable warmth at 29°C (84°F), ideal for outdoor activities. Rainfall is low. Nights cool to 17°C (63°F).
The least favorable time to visit Chiang Mai is May and July. During this period, you can expect very hot temperatures, frequent rain.
May
Challenges: very hot temperatures, frequent rain
July
Challenges: heavy rainfall
August
Challenges: heavy rainfall
Note: visiting during off-peak months often means lower prices, fewer crowds, and a more authentic experience.
Packing recommendations for visiting Chiang Mai during the best travel months (January, November, December), when temperatures range from 17°C to 28°C:
Chiang Mai has a tropical climate (Koppen classification: Am). The warmest month is April with highs of 36°C, while the coldest month is December at just 27°C. Annual rainfall averages 1138mm across approximately 137 rain days.
| Metric | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High °C | 28 | 31 | 34 | 36 | 33 | 31 | 30 | 29 | 29 | 29 | 28 | 27 |
| Low °C | 16 | 18 | 21 | 24 | 24 | 24 | 24 | 23 | 23 | 21 | 18 | 16 |
| Rain Days | 1 | 1 | 2 | 5 | 14 | 20 | 23 | 25 | 24 | 16 | 4 | 2 |
| Rain mm | 9 | 3 | 12 | 31 | 109 | 135 | 194 | 258 | 240 | 111 | 24 | 12 |
| Sun h/day | 10 | 11 | 11 | 11 | 10 | 9 | 7 | 7 | 8 | 10 | 10 | 10 |
| Humidity % | 78 | 78 | 78 | 78 | 78 | 78 | 78 | 78 | 78 | 78 | 78 | 78 |
| UV Index | 3 | 3 | 6 | 6 | 9 | 9 | 9 | 9 | 6 | 6 | 3 | 3 |
Considering alternatives to Chiang Mai? Compare the best travel months for nearby cities:
For a complete day-by-day weather breakdown including packing lists, activities, and local events, explore each month individually:
January
February
March
April
May
June
July
August
September
October
November
December
Explore weather guides for other popular destinations: