Sweden weather in September 2025

Expect 15°C daytime maximum temperatures in the shade with on average 4 hours of sunshine per day in Sweden in September based on long-term weather averages. There is usually 14 days with some rainfall and 52 mm of average monthly rainfall in September.

  • 15°C maximum daytime temperature in September in Sweden (Stockholm)15
    15°C max day temperature
  • 4 hours of sunshine per day
  • 14 days with some rainfall in September in Sweden (Stockholm)14
    14 days with some rainfall
  • 9°C minimum night-time temperature in September in Sweden (Stockholm)9
    9°C min night temperature
  • 13 hours of daylight per day in September in Sweden (Stockholm)13
    13 hours of daylight per day
  • No heat & humidity in September in Sweden (Stockholm)0
    No heat & humidity
  • 52 mm monthly rainfall in September in Sweden (Stockholm)52
    52 mm of monthly rainfall
  • UV (maximum) index 3 (Moderate) in September in Sweden (Stockholm)3
    3 (Moderate) UV index
  • 14°C sea temperature in September in Sweden (Stockholm)14
    14°C sea temperature

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The September weather guide for Sweden (Stockholm) 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.

Top Sweden destinations

Below are average maximum temperatures at popular countries, regions and places in Sweden in September. Select a holiday destination to see more weather parameters.

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

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How warm is it in Sweden in September?

Daytime temperatures usually reach 15°C in Stockholm, Sweden in September, falling to 9°C at night.

How sunny is it in Sweden in September?

There are normally 4 hours of bright sunshine each day in Stockholm, Sweden in September - that's 34% of daylight hours.

How warm is the sea around Sweden in September?

The average sea temperature around Stockholm, Sweden in September is 14°C.

Does it rain in Sweden in September?

There are usually 14 days with some rain in Stockholm, Sweden in September and the average monthly rainfall is 52mm.

Sweden September sunrise & sunset times

Browse the sunrise and sunset times for Sweden in September 2025. Select a month to view Sweden sunrise and sunset times for the next 12 months. The Sweden sunrise and sunset times shown below are for Stockholm.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 04:45 18:49
Monday, 15th September 2025 05:16 18:08
Tuesday, 30th September 2025 05:51 17:23

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