Shanghai weather in August
August in Shanghai: sweltering, rainy, with poor air quality — a fair time to visit.
#11 of 12 months in Shanghai · #531 of 604 destinations to visit in August · comfort 54/100 (tier D)
Updated June 2026 · climate normals from ERA5 reanalysis
Shanghai climate normals — August
| Daytime high | 31°C / 88°F | 🔥 sweltering |
|---|---|---|
| Nighttime low | 26°C / 79°F | |
| Feels like (high) | 37°C / 99°F | |
| Rainfall | 144 mm / 5.7 in | 🌧 rainy |
| Rainy days | 13 days | |
| Humidity | 79% | 💦 very humid |
| Dew point | 25°C / 76°F | |
| Sunshine | 9.8 h/day | |
| Daylight | 13.3 h | |
| Wind | 18 km/h / 11 mph | |
| Air quality (US AQI) | 114 | 😷 poor |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Shanghai in August — FAQ
- Is August a good time to visit Shanghai?
- August in Shanghai: sweltering, rainy, with poor air quality — a fair time to visit. It ranks #11 of 12 months for Shanghai on SeasonMap's comfort score (54/100).
- What is the weather like in Shanghai in August?
- In August, Shanghai averages a daily high of 31.3°C and a low of 26.1°C, with about 143.6 mm of rain over roughly 13.4 rainy days.
- What is the air quality in Shanghai in August?
- Shanghai has a mean US Air Quality Index of about 114 in August.