Kalmar weather in September 2025

Expect 61°F 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.

  • 61°F maximum daytime temperature in September in Kalmar61
    61°F max day temperature
  • 5 hours of sunshine per day
  • 13 days with some rainfall in September in Kalmar13
    13 days with some rainfall
  • 46°F minimum night-time temperature in September in Kalmar46
    46°F 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
  • 2.2 inches monthly rainfall in September in Kalmar2.2
    2.2 inches of monthly rainfall
  • UV (maximum) index 3 (Moderate) in September in Kalmar3
    3 (Moderate) UV index
  • 57°F sea temperature in September in Kalmar57
    57°F 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)  |  Imperial (°F)

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How warm is it in Kalmar in September?

Daytime temperatures usually reach 61°F in Kalmar in September, falling to 46°F 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 57°F.

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 2.2 inches.

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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