Weather in Chengdu in September
September in Chengdu is mild with average temperatures around 23.0°C (73.4°F). Expect significant rainfall with 127mm across approximately 20 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
27.4°C
81.3°F
Low
18.5°C
65.3°F
Precipitation
127 mm
5.0 inches
~20 rainy days
Conditions
Humidity
78%
Comparison to Adjacent Months
September is 3.7°C cooler than August, 74mm drier than August.
September is 4.8°C warmer than October, 68mm wetter than October.