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). However, temperatures can swing from a cool 14°C (58°F) to a scorching 37°C (100°F). Expect 150 mm (5.9 in) of precipitation spread across 16 days, with an average humidity level of 72%. Whether you're braving the heat or dodging the rain, be prepared for a climate that keeps you on your toes!

August Temperature in Vienna

In August in Vienna, the average temperature is a comfortable 25°C (77°F). Maximums can reach up to 37°C (100°F) while minimums can drop to a chilly 14°C (58°F). Be sure to pack both light clothing for the heat and a sweater for the cooler evenings if you plan to travel during this time!

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 (100°F) and lows dropping to around 14°C (58°F).
JanFebMarAprMayJunJulAugSepOctNovDec364046566675817771624740
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 precipitation amount is 150 mm (5.9 in) spread over 16 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 150 mm (5.9 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec609884991321181411501021078694
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 72%. With an average temperature of 25°C (77°F), this humidity feels like a warm embrace that clings to your skin, making outdoor exploration both vibrant and a bit taxing as you sweat slightly more and seek shade often while enjoying the scenery.

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 72%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%83%83%81%78%79%74%72%75%81%85%84%
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 is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For 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 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec357910101098753
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 Weather2°C (37°F)60 mm (2.4 inches)84%moderate
February Weather5°C (41°F)98 mm (3.9 inches)83%moderate
March Weather8°C (46°F)84 mm (3.3 inches)83%high
April Weather13°C (57°F)99 mm (3.9 inches)81%very high
May Weather19°C (66°F)132 mm (5.2 inches)78%very high
June Weather24°C (75°F)118 mm (4.7 inches)79%very high
July Weather27°C (81°F)141 mm (5.5 inches)74%very high
August Weather25°C (77°F)150 mm (5.9 inches)72%very high
September Weather22°C (72°F)102 mm (4.0 inches)75%very high
October Weather16°C (62°F)107 mm (4.2 inches)81%high
November Weather8°C (47°F)86 mm (3.4 inches)85%moderate
December Weather5°C (41°F)94 mm (3.7 inches)84%moderate

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