Bratislava weather in September 2025

Expect daytime maximum temperatures of 70°F in Bratislava, Slovakia in September based on long-term weather averages. There are 6 hours of sunshine per day on average with typically 1.7 inches of rainfall in the month.

  • 70°F maximum daytime temperature in September in Bratislava70
    70°F max day temperature
  • 6 hours of sunshine per day
  • 9 days with some rainfall in September in Bratislava9
    9 days with some rainfall
  • 52°F minimum night-time temperature in September in Bratislava52
    52°F min night temperature
  • 13 hours of daylight per day in September in Bratislava13
    13 hours of daylight per day
  • No heat & humidity in September in Bratislava0
    No heat & humidity
  • 1.7 inches monthly rainfall in September in Bratislava1.7
    1.7 inches of monthly rainfall
  • UV (maximum) index 4 (Moderate) in September in Bratislava4
    4 (Moderate) UV index

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The September weather guide for Slovakia (Bratislava) 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 hot is it in Bratislava in September?

Daytime temperatures usually reach 70°F in Bratislava in September, falling to 52°F at night.

How sunny is it in Bratislava in September?

There are normally 6 hours of bright sunshine each day in Bratislava in September - that's 47% of daylight hours.

Does it rain in Bratislava in September?

There are usually 9 days with some rain in Bratislava in September and the average monthly rainfall is 1.7 inches.

Bratislava September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:09 18:33
Monday, 15th September 2025 05:29 18:04
Tuesday, 30th September 2025 05:49 17:33

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