Vienna Weather in August

What's the weather like in Vienna (Missouri) in August 2025?

The climate in Vienna during August can be summarized as hot, humid and a little damp.

August is in the summer in Vienna and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a muggy 31°C (87°F), whilst at night 19°C (66°F) is normal.

Vienna weather averages (imperial / metric)
Daytime temperature 30.6°C 87.1°F
Nightly temperature 18.8°C 65.8°F
Average temperature 24.7°C 76.5°F
Daily sunshine 9.9 hrs
Avg rainfall 91 mm 3.6 ins
Rainy days 8 days
Sea temperature 22.5°C 72.4°F
Humidity 71%
Windspeed 13.3kph 8 mph

On average August is the 5th wettest month of the year in Vienna with around 91mm 3.6 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 8 days, although this may vary considerably.

On the flip side this corresponds to an average of 9.9 hours of sunshine per day.

August temperatures in Vienna

Vienna average temperature in August

August rainfall

Vienna average rain in August

August hourly sunshine

Vienna average rain in August

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Vienna in August 2025.

Other monthly averages

Best places to visit in August

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Vienna weather stats

Vienna weather statistics
Hottest month: July 31.4°C 88.5°F
Driest month: January 43mm 1.7ins
Sunniest month: July 10.9hrs
Coldest month: January 3.5°C 38.3°F
Wettest month: May 120mm 4.7ins
Map showing location of Vienna (38.18671, -91.94711) Vienna map pin © Google

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