Is Vienna hot in September?
Days are typically mild at 21°C, while nights average 12.1°C.
Austria · 1991–2020 normal
Vienna in
September.
Typical September weather in Vienna: 21°C by day, 12.1°C at night, 64 mm of rain over 7.4 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high21°C
Typical low12.1°C
Rain64 mm
Wet days7.4
In the year-round weather comparison, September scores 77 out of 100 (June leads the year at 86). Daylight is calculated as 12 h 31 from latitude 48.21°.
September at a glance
What is Vienna like in September?
Plain answers from the measured climate record—not a forecast or a promise about a particular trip.
Does it rain much?
The measured monthly average is 64 mm across about 7 wet days.
How much daylight is there?
There are about 12 h 31 between sunrise and sunset at mid-month, calculated from the place latitude.
Is September a good time to visit?
September ranks 3 of 12 in our weather comparison; June ranks first.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 2761369
- NOAA station
- AU000005901 · WIEN
- Station distance
- 3.2 km from the place centre
- Coverage
- Strong coverage · 30 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.
Next step
Choose your month.
Then plan the details.
The weather comparison for Vienna is based on climate evidence, not payments from travel companies. Flight, accommodation and activity links will be clearly labelled when they are added; there are no booking offers on this page today.
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