Chiang Rai weather in August
August in Chiang Rai: hot, soaked, with clean air — not the time — 27 rainy days.
#12 of 12 months in Chiang Rai · #839 of 897 destinations to visit in August · comfort 48/100 (tier F)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Chiang Rai in August
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Chiang Rai climate normals — August
| Daytime high | 30°C / 85°F | 🥵 hot |
|---|---|---|
| Nighttime low | 24°C / 75°F | |
| Rainfall | 345 mm / 13.6 in | ⛈ soaked |
| Rainy days | 27 days | |
| Humidity | 86% | 💦 very humid |
| Dew point | 24°C / 74°F | |
| Sunshine | 7.3 h/day | |
| Daylight | 12.8 h | |
| Wind | 8 km/h / 5 mph | |
| Air quality (US AQI) | 37 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Chiang Rai in August — FAQ
- Is August a good time to visit Chiang Rai?
- August in Chiang Rai: hot, soaked, with clean air — not the time — 27 rainy days. It ranks #12 of 12 months for Chiang Rai on SeasonMap's comfort score (48/100).
- What is the weather like in Chiang Rai in August?
- In August, Chiang Rai averages a daily high of 29.7°C and a low of 23.7°C, with about 345.2 mm of rain over roughly 27.4 rainy days.
- What is the air quality in Chiang Rai in August?
- Chiang Rai has a mean US Air Quality Index of about 37 in August.