Shanghai weather in May
May in Shanghai: warm, rainy, with very humid — one of the best months to visit.
#2 of 12 months in Shanghai · #247 of 604 destinations to visit in May · comfort 84/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Shanghai climate normals — May
| Daytime high | 24°C / 75°F | 🌤 warm |
|---|---|---|
| Nighttime low | 17°C / 63°F | |
| Feels like (high) | 26°C / 79°F | |
| Rainfall | 109 mm / 4.3 in | 🌧 rainy |
| Rainy days | 11 days | |
| Humidity | 76% | 💦 very humid |
| Dew point | 15°C / 59°F | |
| Sunshine | 8.3 h/day | |
| Daylight | 13.7 h | |
| Wind | 19 km/h / 11 mph | |
| Air quality (US AQI) | 98 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Shanghai in May — FAQ
- Is May a good time to visit Shanghai?
- May in Shanghai: warm, rainy, with very humid — one of the best months to visit. It ranks #2 of 12 months for Shanghai on SeasonMap's comfort score (84/100).
- What is the weather like in Shanghai in May?
- In May, Shanghai averages a daily high of 24.1°C and a low of 17.3°C, with about 108.6 mm of rain over roughly 11.4 rainy days.
- What is the air quality in Shanghai in May?
- Shanghai has a mean US Air Quality Index of about 98 in May.