Sanya weather in August
August in Sanya: hot, soaked, with clean air — fine if you can take 25 rainy days.
#11 of 12 months in Sanya · #637 of 897 destinations to visit in August · comfort 71/100 (tier B)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Sanya in August
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Sanya climate normals — August
| Daytime high | 30°C / 87°F | 🥵 hot |
|---|---|---|
| Nighttime low | 27°C / 80°F | |
| Rainfall | 256 mm / 10.1 in | ⛈ soaked |
| Rainy days | 25 days | |
| Humidity | 85% | 💦 very humid |
| Dew point | 26°C / 78°F | |
| Sunshine | 9.4 h/day | |
| Daylight | 12.7 h | |
| Wind | 18 km/h / 11 mph | |
| Air quality (US AQI) | 44 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Sanya in August — FAQ
- Is August a good time to visit Sanya?
- August in Sanya: hot, soaked, with clean air — fine if you can take 25 rainy days. It ranks #11 of 12 months for Sanya on SeasonMap's comfort score (71/100).
- What is the weather like in Sanya in August?
- In August, Sanya averages a daily high of 30.3°C and a low of 26.5°C, with about 256.3 mm of rain over roughly 25.4 rainy days.
- What is the air quality in Sanya in August?
- Sanya has a mean US Air Quality Index of about 44 in August.