Chengdu weather in May
May in Chengdu: warm, a little rain, with poor air quality — an excellent time to visit.
#3 of 12 months in Chengdu · #312 of 604 destinations to visit in May · comfort 81/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Chengdu climate normals — May
| Daytime high | 26°C / 79°F | 🌤 warm |
|---|---|---|
| Nighttime low | 18°C / 64°F | |
| Feels like (high) | 27°C / 81°F | |
| Rainfall | 79 mm / 3.1 in | 🌦 some rain |
| Rainy days | 14 days | |
| Humidity | 70% | 💧 humid |
| Dew point | 15°C / 59°F | |
| Sunshine | 7.5 h/day | |
| Daylight | 13.7 h | |
| Wind | 12 km/h / 8 mph | |
| Air quality (US AQI) | 138 | 😷 poor |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Chengdu in May — FAQ
- Is May a good time to visit Chengdu?
- May in Chengdu: warm, a little rain, with poor air quality — an excellent time to visit. It ranks #3 of 12 months for Chengdu on SeasonMap's comfort score (81/100).
- What is the weather like in Chengdu in May?
- In May, Chengdu averages a daily high of 26.3°C and a low of 18°C, with about 79 mm of rain over roughly 13.6 rainy days.
- What is the air quality in Chengdu in May?
- Chengdu has a mean US Air Quality Index of about 138 in May.