Chiang Mai, ThailandQuick decision
When to visit Chiang Mai?
🌞 Best time overall
December
🌡️ Optimal temperature
18°C–28°C in December
🌧 Least rain
10% rainy days in December
🌧 Wettest month
August (96%)
📅 Best score
9.0/10
By trip type
Best time by type of trip
TemplesNovember–February — Doi Suthep, Wat Chedi Luang and hundreds of temples.
FestivalsNovember — Yi Peng (lanterns). April — Songkran (water).
Street Food & MarketsYear-round — Warorot, Night Bazaar and khao soi.
Trekking & NatureNovember–February — northern mountains, hill tribe villages and waterfalls.
Massage & WellnessYear-round — massage schools, spas and meditation retreats.
Monthly climate data
Chiang Mai weather month by month
| Month | Min °C | Max °C | Rainy days (%) | Precip. mm/d | Sun h/d | Score |
|---|---|---|---|---|---|---|
| ☀️ January | 17°C | 28°C | 13% | 0.7 | 10.3h | 8.9/10 |
| ☀️ February | 18°C | 30°C | 6% | 0.9 | 10.7h | 8.6/10 |
| ☀️ March | 21°C | 34°C | 6% | 0.3 | 11.0h | 7.5/10 |
| 🥵 April | 24°C | 36°C | 22% | 1.9 | 11.1h | 6.9/10 |
| ⛅ May | 24°C | 33°C | 60% | 6.6 | 11.3h | 7.0/10 |
| 🌦️ June | 24°C | 31°C | 87% | 8.0 | 9.7h | 6.4/10 |
| 🌦️ July | 24°C | 30°C | 90% | 11.8 | 8.4h | 6.0/10 |
| 🌧️ August | 24°C | 30°C | 96% | 13.3 | 8.2h | 5.4/10 |
| 🌦️ September | 23°C | 30°C | 86% | 11.2 | 9.6h | 7.0/10 |
| 🌤️ October | 22°C | 30°C | 59% | 5.8 | 10.4h | 7.2/10 |
| 🌤️ November | 21°C | 29°C | 30% | 2.3 | 10.2h | 8.1/10 |
| ☀️ December | 18°C | 28°C | 10% | 0.8 | 10.1h | 9.0/10 |
Ideal
Fair
Challenging climate
Source: Open-Meteo · 10 years
🌴 Tropical destination — heavy rain months benefit from an algorithmic adjustment: tropical showers are intense but brief and usually don't ruin a trip.
Seasonal breakdown
What to expect each season
🌸 Spring (Mar–May) — Good time
Average 34°C, 29% rainy days, 11.1h sunshine/day. Score: 7.1/10.
☀️ Summer (Jun–Aug) — Acceptable
Average 30°C, 91% rainy days, 8.8h sunshine/day. Score: 5.9/10.
🍂 Autumn (Sep–Nov) — Good time
Average 30°C, 58% rainy days, 10.1h sunshine/day. Score: 7.4/10.
❄️ Winter (Dec–Feb) — Excellent time
Average 29°C, 10% rainy days, 10.4h sunshine/day. Score: 8.8/10.
Accommodation
Find a place to stay in Chiang Mai
Check availability during the recommended period
Tip : April, May offer a good weather/price balance — decent score with fewer crowds.
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Activities and tours in Chiang Mai
Guided tours, skip-the-line tickets and local experiences.
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Flights
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Monthly weather
Detailed weather by month
FAQ
Frequently asked questions
December is ideal with 10% rainy days and 28°C.
August is the wettest month with 96% rainy days.
Yes, December is the best month with an average of 28°C.
In winter, the average score is 8.8/10. Acceptable conditions for cultural visits.
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