Best Time to Visit
Best Time to Visit Chiang Mai
🇹🇭 Chiang Mai, Thailand · Asia
Based on 30-year climate data (1991-2020) from Open-Meteo
Recommended Travel Months
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-by-Month Weather in Chiang Mai
| 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 | 9h | 78% | 6 | Good | View |
| NovemberRecommended | 28°C | 18°C | 4 | 9h | 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.
Seasonal Guide to Chiang Mai
Spring (March to May)
Avg: 34°C high, 23°C low
Spring in Chiang Mai brings gradually warm temperatures. Daytime highs reach around 34°C (93°F) while nights cool to 23°C (73°F). Expect occasional showers, so pack a light rain jacket.
Summer (June to August)
Avg: 30°C high, 24°C low
Summer is the hottest season in Chiang Mai, with temperatures reaching 30°C (86°F). The heat can be intense, but mornings and evenings remain pleasant for sightseeing. Long daylight hours and abundant sunshine provide plenty of time to explore.
Fall (September to November)
Avg: 29°C high, 21°C low
Fall in Chiang Mai is a transitional season with changing conditions. Temperatures settle around 29°C (84°F) during the day and 21°C (70°F) at night. Rainfall picks up during this period, so waterproof clothing is advisable.
Winter (December to February)
Avg: 29°C high, 17°C low
Winter in Chiang Mai brings the cooler period, though temperatures remain warm by most standards. This can actually be one of the most comfortable times to visit if you prefer less intense heat.
When to Avoid Chiang Mai
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. Consider your priorities when planning your trip.
What to Pack for Chiang Mai
Packing recommendations for visiting Chiang Mai during the best travel months (January, November, December), when temperatures range from 17°C to 28°C:
- +Lightweight, breathable clothing (cotton or linen)
- +Shorts, t-shirts, and sandals for daytime
- +A light sweater or cardigan for evening temperature drops
- +Reusable water bottle
- +Universal power adapter
Chiang Mai Year-Round Climate Overview
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 | 9 | 9 | 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 |
Compare Nearby Destinations
Considering alternatives to Chiang Mai? Compare the best travel months for nearby cities:
Frequently Asked Questions
What is the best month to visit Chiang Mai?+
The best time to visit Chiang Mai is January, November, December. During these months, temperatures average 28°C (82°F) with 10 hours of daily sunshine and only 2 rain days per month. These conditions offer the most comfortable weather for sightseeing and outdoor activities.
What is the worst time to visit Chiang Mai?+
The least ideal time to visit Chiang Mai is May and July. During this period, you can expect very hot temperatures, frequent rain. While Chiang Mai can still be visited during this time (often with fewer crowds and lower prices), the weather may limit outdoor activities.
Is Chiang Mai good to visit in summer?+
Summer in Chiang Mai (June to August) brings temperatures of 30°C (86°F) highs and 24°C (75°F) lows, with about 8 hours of sunshine and 23 rain days per month. Consider visiting during the recommended months instead for better weather.
What is the rainy season in Chiang Mai?+
The rainy season in Chiang Mai runs from May to October, when average rain days increase to 20 days per month. Total monthly precipitation during this period averages 175mm.
What should I pack for Chiang Mai?+
When visiting Chiang Mai during the best travel months (January, November, December), pack lightweight breathable clothing, sun protection, and comfortable walking shoes. Rain gear is generally not needed. Sunscreen and sunglasses are recommended.
Is January a good time to visit Chiang Mai?+
Yes, January is one of the best months to visit Chiang Mai. Expect average highs of 28°C (82°F), 10 hours of daily sunshine, and only 1 rain days. The weather is ideal for exploring the city, visiting outdoor attractions, and enjoying local activities.
Detailed Monthly Weather for Chiang Mai
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
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