Karlstad weather in September 2025

Expect 15°C daytime maximum temperatures in the shade with on average 4 hours of sunshine per day in Karlstad in September. Check more long-term weather averages for Karlstad in September before you book your next holiday to Sweden in 2025/2026.

  • 15°C maximum daytime temperature in September in Karlstad15
    15°C max day temperature
  • 4 hours of sunshine per day
  • 14 days with some rainfall in September in Karlstad14
    14 days with some rainfall
  • 6°C minimum night-time temperature in September in Karlstad6
    6°C min night temperature
  • 13 hours of daylight per day in September in Karlstad13
    13 hours of daylight per day
  • No heat & humidity in September in Karlstad0
    No heat & humidity
  • 70 mm monthly rainfall in September in Karlstad70
    70 mm of monthly rainfall
  • UV (maximum) index 3 (Moderate) in September in Karlstad3
    3 (Moderate) UV index

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The September weather guide for Sweden (Karlstad) 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 warm is it in Karlstad in September?

Daytime temperatures usually reach 15°C in Karlstad in September, falling to 6°C at night.

How sunny is it in Karlstad in September?

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

Does it rain in Karlstad in September?

There are usually 14 days with some rain in Karlstad in September and the average monthly rainfall is 70mm.

Karlstad September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:03 19:07
Monday, 15th September 2025 05:35 18:26
Tuesday, 30th September 2025 06:09 17:42

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