September · Austria
Best time to visit Vienna in September Weather, crowds & prices
Weather in Vienna in September
Average temperature 17°C, 111 mm of rain, about 10 days with 6+ hours of sunshine and 71% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
September score
7.2/10
Ranked #5 of 12 months
- Avg temp
- 17°C
- Rainfall
- 111 mm
- Humidity
- 71%
- Days with 6h+ sun
- 10
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$ · Moderate Cost ($$)
September in Vienna scores 7.2/10 for sightseeing and cultural travel - an above-average month (#5 of 12). Expect around 17°C, 111 mm of rain, and roughly 10 days with 6+ hours of sunshine this month.
Imperial cafés, concert halls, and palatial gardens reveal Vienna at its most graceful from May through September.
September in Vienna — reliably good (5th best month)
Temperatures hover around 17°C (62°F) — the kind of month where neither heat nor cold forces the schedule.
111 mm of rain signals a properly wet month, with only about 10 days with 6+ hours of sunshine to count on — build indoor options into the schedule.
That is 7.2/10 on the same scale — 5th of 12 months, versus 9/10 for the best month here.
Pack layers you can shed by midday plus one warm layer for the evening, a proper rain shell rather than an umbrella.
Expect mid-season pricing, and crowds are moderate.
If your dates are flexible, July is materially better in Vienna — 1.8 points higher on the same scale.
Frequently asked
- What is the weather like in Vienna in September?
- In September, Vienna averages 17°C, 111 mm of rain, and about 10 days with 6+ hours of sunshine. Its climate-comfort score is 7.2/10.
- Is September a good time to visit Vienna?
- September earns a 7.2/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Vienna in September?
- Expect about 111 mm of rain in September. Average humidity is 71% and there are about 10 days with 6+ hours of sunshine.
Curated in Vienna
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