August Weather in Vienna, United States

Last updated: June 24, 2025

In August, the average temperature in Vienna, United States hovers around 25°C (77°F), with temperatures ranging from a chilly 14°C (57°F) to a sweltering 36°C (97°F). Expect an average precipitation of 91 mm (3.6 in) spread over 11 days, and be prepared for a humidity level around 76%.

August Temperature in Vienna

In August in Vienna, the average temperature is 25°C (77°F), with maximums reaching 36°C (97°F) and minimums dropping to as low as 14°C (57°F). It's a great time to visit for those who enjoy warm weather with occasional cooler evenings.

August Weather in Vienna: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Vienna, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Vienna, August typically has an average temperature of 25°C (77°F), with highs reaching up to 36°C (97°F) and lows dropping to around 14°C (57°F).

Data source: Temperature data for Vienna generated using information from the Copernicus Climate Change Service.

August Precipitation in Vienna

In Vienna in August, the precipitation amount is 91 mm (3.6 in) over a period of 11 days.

August Precipitation Trends in Vienna

The chart displays monthly precipitation patterns in Vienna, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Vienna, August typically receives around 91 mm (3.6 inches) of precipitation spread over approximately 11 days.

Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

August Humidity in Vienna

In Vienna in August, humidity is 76%. With an average temperature of 25°C (77°F), this humidity feels like a warm, heavy blanket wrapping around you, making traveling feel muggy and requiring frequent breaks to stay refreshed.

August Average Humidity in Vienna

This chart illustrates the average monthly humidity levels in Vienna, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Vienna is approximately 76%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Vienna

In Vienna in August, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Vienna.

Maximum UV Index Levels in Vienna for August

The chart shows the monthly maximum UV Index (UVI) for Vienna in August, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In August, the maximum UV index in Vienna typically reaches 10, which falls under the very high exposure category.

Data source: Vienna August UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How August Weather in Vienna Compares to Other Months

Weather in Vienna varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Vienna, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Vienna, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	2°C (36°F)	102 mm (4.0 inches)	86%	moderate
February Weather	4°C (39°F)	126 mm (5.0 inches)	84%	moderate
March Weather	10°C (49°F)	153 mm (6.0 inches)	84%	high
April Weather	14°C (57°F)	140 mm (5.5 inches)	80%	very high
May Weather	20°C (68°F)	147 mm (5.8 inches)	82%	extreme
June Weather	25°C (77°F)	108 mm (4.3 inches)	83%	extreme
July Weather	27°C (80°F)	101 mm (4.0 inches)	79%	very high
August Weather	25°C (77°F)	91 mm (3.6 inches)	76%	very high
September Weather	23°C (73°F)	72 mm (2.9 inches)	75%	very high
October Weather	16°C (61°F)	132 mm (5.2 inches)	74%	high
November Weather	8°C (46°F)	96 mm (3.8 inches)	85%	moderate
December Weather	5°C (42°F)	91 mm (3.6 inches)	88%	moderate