Weather in Xi’an in September
September in Xi’an is mild with average temperatures around 20.9°C (69.6°F). Expect significant rainfall with 125mm across approximately 13 days.
Data Note: Temperature values are 2001–2020 satellite/reanalysis grid averages from NASA POWER and may differ from airport station normals by a few degrees.
Temperature
High
26.2°C
79.2°F
Low
15.6°C
60.1°F
Precipitation
125 mm
4.9 inches
~13 rainy days
Conditions
Humidity
69%
Comparison to Adjacent Months
September is 5.5°C cooler than August.
September is 5.9°C warmer than October, 65mm wetter than October.