Norway weather in September 2025

Expect 14°C daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in Norway in September. Check more long-term weather averages for Norway in September before you book your next holiday to Norway in 2025/2026.

  • 14°C maximum daytime temperature in September in Norway (Oslo)14
    14°C max day temperature
  • 5 hours of sunshine per day
  • 16 days with some rainfall in September in Norway (Oslo)16
    16 days with some rainfall
  • 7°C minimum night-time temperature in September in Norway (Oslo)7
    7°C min night temperature
  • 13 hours of daylight per day in September in Norway (Oslo)13
    13 hours of daylight per day
  • No heat & humidity in September in Norway (Oslo)0
    No heat & humidity
  • 94 mm monthly rainfall in September in Norway (Oslo)94
    94 mm of monthly rainfall
  • UV (maximum) index 3 (Moderate) in September in Norway (Oslo)3
    3 (Moderate) UV index
  • 14°C sea temperature in September in Norway (Oslo)14
    14°C sea temperature

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The September weather guide for Norway (Oslo) 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 Norway destinations

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

All Norway destinations

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

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More about Norway

How warm is it in Norway in September?

Daytime temperatures usually reach 14°C in Oslo, Norway in September, falling to 7°C at night.

How sunny is it in Norway in September?

There are normally 5 hours of bright sunshine each day in Oslo, Norway in September - that's 36% of daylight hours.

How warm is the sea around Norway in September?

The average sea temperature around Oslo, Norway in September is 14°C.

Does it rain in Norway in September?

There are usually 16 days with some rain in Oslo, Norway in September and the average monthly rainfall is 94mm.

Norway September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:12 19:20
Monday, 15th September 2025 05:45 18:38
Tuesday, 30th September 2025 06:20 17:52

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