Dalian weather in September 2025

Expect 24°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Dalian in September. Check more long-term weather averages for Dalian in September before you book your next holiday to China in 2025/2026.

  • 24°C maximum daytime temperature in September in Dalian24
    24°C max day temperature
  • 8 hours of sunshine per day
  • 7 days with some rainfall in September in Dalian7
    7 days with some rainfall
  • 17°C minimum night-time temperature in September in Dalian17
    17°C min night temperature
  • 12 hours of daylight per day in September in Dalian12
    12 hours of daylight per day
  • No heat & humidity in September in Dalian0
    No heat & humidity
  • 64 mm monthly rainfall in September in Dalian64
    64 mm of monthly rainfall
  • UV (maximum) index 7 (High) in September in Dalian7
    7 (High) UV index
  • 22°C sea temperature in September in Dalian22
    22°C sea temperature

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The September weather guide for China (Dalian) 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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More about China

How hot is it in Dalian in September?

Daytime temperatures usually reach 24°C in Dalian in September, falling to 17°C at night.

How sunny is it in Dalian in September?

There are normally 8 hours of bright sunshine each day in Dalian in September - that's 64% of daylight hours.

How warm is the sea around Dalian in September?

The average sea temperature around Dalian in September is 22°C.

Does it rain in Dalian in September?

There are usually 7 days with some rain in Dalian in September and the average monthly rainfall is 64mm.

Dalian September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:22 18:24
Monday, 15th September 2025 05:35 18:02
Tuesday, 30th September 2025 05:48 17:38

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