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August Weather in Vienna, United States

Last updated: June 24, 2025

In August, the average temperature in Vienna, United States is a comfortable 25°C (77°F), with minimums dipping to 13°C (55°F) and maximums reaching a sizzling 37°C (98°F). Expect 95 mm (3.7 in) of precipitation spread over 11 days, contributing to an average humidity of 80%.

August Temperature in Vienna

In August in Vienna, the average temperature is 25°C (77°F). Maximums can reach 37°C (98°F) and minimums can be as low as 13°C (55°F). Be prepared for warm days and cooler nights, making it a great time for travelers to explore outdoor activities while enjoying the mild 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 37°C (98°F) and lows dropping to around 13°C (55°F).
JanFebMarAprMayJunJulAugSepOctNovDec333648556676807672594540
Data source: Temperature data for Vienna generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

August Precipitation in Vienna

In Vienna in August, the total precipitation amount is 95 mm (3.7 in) spread over 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 95 mm (3.7 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec7576129129166879795511026248
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Vienna

In Vienna in August humidity is 80%. With an average temperature of 25°C (77°F), this humidity feels like traveling through a warm, tropical rainforest where the air is thick and steamy, making even the simplest stroll feel like a workout.

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 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%80%80%80%82%83%81%80%76%76%85%86%
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.
JanFebMarAprMayJunJulAugSepOctNovDec3579101111109753
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.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)75 mm (3.0 inches)82%moderate
February Weather2°C (36°F)76 mm (3.0 inches)80%moderate
March Weather9°C (48°F)129 mm (5.1 inches)80%high
April Weather13°C (55°F)129 mm (5.1 inches)80%very high
May Weather19°C (66°F)166 mm (6.5 inches)82%very high
June Weather24°C (76°F)87 mm (3.4 inches)83%extreme
July Weather26°C (80°F)97 mm (3.8 inches)81%extreme
August Weather25°C (77°F)95 mm (3.7 inches)80%very high
September Weather22°C (73°F)51 mm (2.0 inches)76%very high
October Weather15°C (59°F)102 mm (4.0 inches)76%high
November Weather7°C (45°F)62 mm (2.4 inches)85%moderate
December Weather4°C (40°F)47 mm (1.9 inches)86%moderate

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