Chengdu weather in September 2025

Expect 25°C daytime maximum temperatures in the shade with on average 3 hours of sunshine per day in Chengdu in September. Check more long-term weather averages for Chengdu in September before you book your next holiday to China in 2025/2026.

  • 25°C maximum daytime temperature in September in Chengdu25
    25°C max day temperature
  • 3 hours of sunshine per day
  • 17 days with some rainfall in September in Chengdu17
    17 days with some rainfall
  • 18°C minimum night-time temperature in September in Chengdu18
    18°C min night temperature
  • 12 hours of daylight per day in September in Chengdu12
    12 hours of daylight per day
  • Low heat & humidity in September in ChengduL
    Low heat & humidity
  • 142 mm monthly rainfall in September in Chengdu142
    142 mm of monthly rainfall
  • UV (maximum) index 9 (Very High) in September in Chengdu9
    9 (Very High) UV index

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The September weather guide for China (Chengdu) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

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How hot is it in Chengdu in September?

Daytime temperatures usually reach 25°C in Chengdu in September with low heat and humidity, falling to 18°C at night.

How sunny is it in Chengdu in September?

There are normally 3 hours of bright sunshine each day in Chengdu in September - that's 25% of daylight hours.

Does it rain in Chengdu in September?

There are usually 17 days with some rain in Chengdu in September and the average monthly rainfall is 142mm.

Chengdu September sunrise & sunset times

Browse the sunrise and sunset times for Chengdu in September 2025. Select a month to view Chengdu sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:40 19:27
Monday, 15th September 2025 06:48 19:09
Tuesday, 30th September 2025 06:57 18:50

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