Xi'an weather in September
Temperature, rain and sunshine in September: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in September
Good
Best time to visit: March – May
What is the weather like in Xi'an in September?
In September, Xi'an is warm: daytime highs average 25 °C, and nights cool down to about 16 °C. Expect around 4 hours of sunshine a day. Rain is frequent, with about 11 rainy days and 110 mm in total. All in all, September is a good month for a holiday in Xi'an.
September compared
How the weather changes from August to October. Tap a month to open it.
| AugustAug | SeptemberSep | OctoberOct | |
|---|---|---|---|
| Score | 59 | 71 | 73 |
| Day | 30° | 25° | 19° |
| Night | 21° | 16° | 10° |
| Sun | 6 h | 4 h | 4 h |
| Rain days | 9 | 11 | 9 |
More details for September
- Daylight
- 12 h 26 min06:26 – 18:53
- UV index
- 8 · very highclear sky, noon (estimate)All months
- Muggy days
- 4 daysdew point 18 °C or moreAll months
- Wind
- 12 km/haverage daily peakAll months
- Cloud cover
- 60 %on averageAll months
- Hot days
- 4 days30 °C or moreAll months
- Snow days
- 0 days1 cm or more of fresh snow
- Time zone
- UTC+8Asia/Shanghai
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %23 %
- Few rainy daysweight 30 %54 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in September
- Sunscreen
- Sunglasses & sun hat
- Rain jacket or umbrella
Xi'an in September: quick answers
Is Xi'an hot in September?
Warm rather than hot: in September, daytime highs in Xi'an average 25 °C and nights cool to about 16 °C. On about 4 days the thermometer climbs to 30 °C or more.
Does it rain much in Xi'an in September?
Rain is frequent, with about 11 rainy days and 110 mm in total.
Xi'an month by month
The whole year in Xi'anAll destinations: ChinaWhere to go in September
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences