Chiang Mai · SummerMonth summary
Chiang Mai weather in August
⚠️ Fair
🌡️ Temperature min / max
24°C – 30°C
🌧 Rainy days
96% of days
☀️ Sunshine
8.2h per day on average
🌊 🌊 Season
Summer
⭐ ⭐ Weather score
5.4/10
📅 📅 Best month
December (9.0/10)
Quick decision
Should you visit Chiang Mai in August?
⚠️ Fair
✅ Yes if: you prefer off-season travel with reduced prices and very few tourists.
❌ No if: you want to avoid rain — more than half the days are rainy.
Our take: Not the best window: 96% rain risk and 8.2h of sunshine. December is much safer.
By trip type
Chiang Mai in August by trip type
- 🏙️ 🏙️ City break / culture : ⚠️ Possible
- 🚶 🚶 Outdoor activities : ❌ Not recommended
- 🏖️ Beach / swimming : ❌ Not recommended
- 💰 💰 Budget : ✅ Low season
Local context
What to expect in August
🎯 Open terraces and outdoor markets — best season for al fresco dining In the height of summer, Chiang Mai sees high temperatures (30°C). Heat is a factor for outdoor activities. With 96% of rainy days, always have indoor alternatives planned.
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All months for Chiang Mai
Annual table
Month-by-month comparison
| Month | Min °C | Max °C | Rain % | Precip mm | 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
◀ Current month · Source Open-Meteo · 10 years
📊 Data source
Data based on 10 years of ERA5 records via Open-Meteo, with ECMWF seasonal adjustment. In August, Chiang Mai averages 30°C, 96% rainy days and 8.2h of sunshine per day. Overall weather score: 5.4/10.
See methodology →
Comparison
August vs December (best month)
The best month is December (score 9.0/10). Difference:
- 🌡️ Max temperature : -2°C
- 🌧 Rainy days : -86%
- ☀️ Sunshine : +1.9h/day
FAQ
FAQ — Chiang Mai in August
Is August a good time to visit Chiang Mai?
August is not recommended for Chiang Mai (score 5.4/10). With 96% rainy days and 8.2h of sunshine, consider December (9.0/10) instead.
Does it rain a lot in Chiang Mai in August?
Yes, 96% of days see rain in August. Plan some indoor activities as backup.
Accommodation
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