Austria weather in September 2025

Expect 21°C daytime maximum temperatures in the shade with on average 6 hours of sunshine per day in Austria in September. Check more long-term weather averages for Austria in September before you book your next holiday to Austria in 2025/2026.

  • 21°C maximum daytime temperature in September in Austria (Vienna)21
    21°C max day temperature
  • 6 hours of sunshine per day
  • 10 days with some rainfall in September in Austria (Vienna)10
    10 days with some rainfall
  • 11°C minimum night-time temperature in September in Austria (Vienna)11
    11°C min night temperature
  • 13 hours of daylight per day in September in Austria (Vienna)13
    13 hours of daylight per day
  • No heat & humidity in September in Austria (Vienna)0
    No heat & humidity
  • 42 mm monthly rainfall in September in Austria (Vienna)42
    42 mm of monthly rainfall
  • UV (maximum) index 4 (Moderate) in September in Austria (Vienna)4
    4 (Moderate) UV index

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The September weather guide for Austria (Vienna) 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.

Top Austria destinations

Below are average maximum temperatures at popular countries, regions and places in Austria in September. Select a holiday destination to see more weather parameters.

All Austria regions

All Austria destinations

Metric (°C / mm)  |  Imperial (°F / inches)

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More about Austria

How hot is it in Austria in September?

Daytime temperatures usually reach 21°C in Vienna, Austria in September, falling to 11°C at night.

How sunny is it in Austria in September?

There are normally 6 hours of bright sunshine each day in Vienna, Austria in September - that's 45% of daylight hours.

Does it rain in Austria in September?

There are usually 10 days with some rain in Vienna, Austria in September and the average monthly rainfall is 42mm.

Austria September sunrise & sunset times

Browse the sunrise and sunset times for Austria in September 2025. Select a month to view Austria sunrise and sunset times for the next 12 months. The Austria sunrise and sunset times shown below are for Vienna.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:12 18:36
Monday, 15th September 2025 05:32 18:07
Tuesday, 30th September 2025 05:52 17:36

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