Kalmar weather in September 2025

Expect 16°C daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in Kalmar in September. Check more long-term weather averages for Kalmar in September before you book your next holiday to Sweden in 2025/2026.

  • 16°C maximum daytime temperature in September in Kalmar16
    16°C max day temperature
  • 5 hours of sunshine per day
  • 13 days with some rainfall in September in Kalmar13
    13 days with some rainfall
  • 8°C minimum night-time temperature in September in Kalmar8
    8°C min night temperature
  • 13 hours of daylight per day in September in Kalmar13
    13 hours of daylight per day
  • No heat & humidity in September in Kalmar0
    No heat & humidity
  • 55 mm monthly rainfall in September in Kalmar55
    55 mm of monthly rainfall
  • UV (maximum) index 3 (Moderate) in September in Kalmar3
    3 (Moderate) UV index
  • 14°C sea temperature in September in Kalmar14
    14°C sea temperature

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The September weather guide for Sweden (Kalmar) 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 Kalmar in September?

Daytime temperatures usually reach 16°C in Kalmar in September, falling to 8°C at night.

How sunny is it in Kalmar in September?

There are normally 5 hours of bright sunshine each day in Kalmar in September - that's 39% of daylight hours.

How warm is the sea around Kalmar in September?

The average sea temperature around Kalmar in September is 14°C.

Does it rain in Kalmar in September?

There are usually 13 days with some rain in Kalmar in September and the average monthly rainfall is 55mm.

Kalmar September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 04:58 18:50
Monday, 15th September 2025 05:26 18:12
Tuesday, 30th September 2025 05:56 17:32

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