September weather forecast
Vienna, Austria

Historic Schloss Belvedere in Vienna, Austria built to serve as a summer residence for Prince Eugene Of Savoy
Historic Schloss Belvedere in Vienna, Austria built to serve as a summer residence for Prince Eugene Of Savoy

Weather in September

The first month of the autumn, September, is still a pleasant month in Vienna, Austria, with an average temperature varying between 13.6°C (56.5°F) and 21.1°C (70°F).

Temperature

In September, the average high-temperature decreases from a moderately hot 26.6°C (79.9°F) in August to an agreeable 21.1°C (70°F). The average low-temperature, in September, is 13.6°C (56.5°F).

Rainfall

In Vienna, during 6.9 rainfall days, 50mm (1.97") of precipitation is typically accumulated. In Vienna, during the entire year, the rain falls for 88 days and collects up to 548mm (21.57") of precipitation.

Snowfall

In Vienna, snow does not fall in May through October.

Daylight

In September, the average length of the day is 12h and 35min.
On the first day of September in Vienna, sunrise is at 06:12 and sunset at 19:36. On the last day of the month, sunrise is at 06:52 and sunset at 18:36 CEST.

Sunshine

The average sunshine in September in Vienna is 6.1h.

UV index

The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 4 in September transform into the following instructions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in September in Vienna?

The average high-temperature, in September, is 21.1°C (70°F), while the average low-temperature is 13.6°C (56.5°F).

How much does it rain in Vienna in September?

In Vienna, Austria, in September, it is raining for 6.9 days, with typically 50mm (1.97") of accumulated precipitation.

When it does not snow in Vienna?

May through October are months without snowfall.

What is the average length of the day in September in Vienna?

In September, the average day length in Vienna is 12h and 35min.

When is the sunrise / sunset in September in Vienna?

On the first day of September, sunrise is at 06:12 and sunset at 19:36. On the last day of the month, sunrise is at 06:52 and sunset at 18:36 CEST.

How many hours of sunshine does Vienna have in September?

The average sunshine duration in September is 6.1h.

What is the UV index intensity in September in Vienna?

In September, the average daily maximum UV index in Vienna, Austria, is 4. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unsafe exposure to Sun's UV rays.
Average rainfall days
Average snowfall
Average sunshine
Average UV index

Average temperature in September
Vienna, Austria

Average temperature in September - Vienna, Austria
  • Average high temperature in September: 21.1°C

The warmest month (with the highest average high temperature) is July (26.7°C).
The month with the lowest average high temperature is January (3.8°C).

  • Average low temperature in September: 13.6°C

The month with the highest average low temperature is August (17.5°C).
The coldest month (with the lowest average low temperature) is January (-0.8°C).

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Average rainfall in September
Vienna, Austria

Average rainfall in September - Vienna, Austria
  • Average rainfall in September: 50.4mm

The wettest month (with the highest rainfall) is July (66.6mm).
The driest month (with the least rainfall) is January (21.3mm).

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Average rainfall days in September
Vienna, Austria

Average rainfall days in September - Vienna, Austria
  • Average rainfall days in September: 6.9 days

The month with the highest number of rainy days is June (9.3 days).
The month with the least rainy days is January (5.3 days).

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Average snowfall in September
Vienna, Austria

Average snowfall in September - Vienna, Austria
  • Average snowfall in September: 0mm

The month with the highest snowfall is January (186mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).

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Average daylight in September /
Average sunshine in September
Vienna, Austria

Average daylight in September / Average sunshine in September - Vienna, Austria
  • Average daylight in September: 12h and 35min

The month with the longest days is June (Average daylight: 16h and 1min).
The month with the shortest days is December (Average daylight: 8h and 26min).

  • Average sunshine in September: 6h and 6min

The month with the most sunshine is July (Average sunshine: 8h and 30min).
The month with the least sunshine is December (Average sunshine: 1h and 42min).

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Average UV index in September
Vienna, Austria

Average UV index in September - Vienna, Austria
  • Average UV index in September: 4

The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, November and December (UV index 1).

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