Xi'an weather in May
May in Xi'an: warm, a little rain, with poor air quality — one of the best months to visit.
#1 of 12 months in Xi'an · #124 of 604 destinations to visit in May · comfort 89/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Xi'an climate normals — May
| Daytime high | 26°C / 79°F | 🌤 warm |
|---|---|---|
| Nighttime low | 15°C / 58°F | |
| Feels like (high) | 26°C / 79°F | |
| Rainfall | 73 mm / 2.9 in | 🌦 some rain |
| Rainy days | 8 days | |
| Humidity | 63% | 💧 humid |
| Dew point | 11°C / 52°F | |
| Sunshine | 9.3 h/day | |
| Daylight | 14 h | |
| Wind | 10 km/h / 6 mph | |
| Air quality (US AQI) | 118 | 😷 poor |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Xi'an?
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Xi'an in May — FAQ
- Is May a good time to visit Xi'an?
- May in Xi'an: warm, a little rain, with poor air quality — one of the best months to visit. It ranks #1 of 12 months for Xi'an on SeasonMap's comfort score (89/100).
- What is the weather like in Xi'an in May?
- In May, Xi'an averages a daily high of 26°C and a low of 14.5°C, with about 73.4 mm of rain over roughly 8.4 rainy days.
- What is the air quality in Xi'an in May?
- Xi'an has a mean US Air Quality Index of about 118 in May.