Visby weather in September 2025

Expect 15°C daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in Visby in September. Check more long-term weather averages for Visby in September before you book your next holiday to Sweden in 2025/2026.

  • 15°C maximum daytime temperature in September in Visby15
    15°C max day temperature
  • 5 hours of sunshine per day
  • 14 days with some rainfall in September in Visby14
    14 days with some rainfall
  • 10°C minimum night-time temperature in September in Visby10
    10°C min night temperature
  • 13 hours of daylight per day in September in Visby13
    13 hours of daylight per day
  • No heat & humidity in September in Visby0
    No heat & humidity
  • 56 mm monthly rainfall in September in Visby56
    56 mm of monthly rainfall
  • UV (maximum) index 3 (Moderate) in September in Visby3
    3 (Moderate) UV index
  • 15°C sea temperature in September in Visby15
    15°C sea temperature

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

Daytime temperatures usually reach 15°C in Visby in September, falling to 10°C at night.

How sunny is it in Visby in September?

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

How warm is the sea around Visby in September?

The average sea temperature around Visby in September is 15°C.

Does it rain in Visby in September?

There are usually 14 days with some rain in Visby in September and the average monthly rainfall is 56mm.

Visby September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 04:48 18:44
Monday, 15th September 2025 05:17 18:05
Tuesday, 30th September 2025 05:49 17:23

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