Last updated: June 24, 2025
In August, the average temperature in Vienna, United States is a comfortable 21°C (69°F). However, be prepared for a range, as temperatures can dip to a chilly 9°C (48°F) and soar to a warm 33°C (91°F). Expect about 82 mm (3.2 in) of precipitation spread over 10 days, contributing to an average humidity of 74%. Embrace the weather, but don't forget your umbrella!
In August in Vienna, the average temperature is 21°C (69°F), with maximums reaching 33°C (91°F) and minimums dropping as low as 9°C (48°F). This diverse temperature range makes it ideal for traveling, allowing for a variety of outdoor activities and experiences.
In Vienna in August, the total precipitation amount is 82 mm (3.2 in) observed over a span of 10 days.
In Vienna in August, humidity is 74%. With an average temperature of 21°C (69°F), this humidity feels like a warm embrace that clings to your skin, making every excursion feel slightly more intense and requiring a bit more effort with every step.
In Vienna in August, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Vienna.
UV Risk Categories
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.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -6°C (21°F) | 83 mm (3.2 inches) | 91% | low |
| February Weather | -5°C (23°F) | 84 mm (3.3 inches) | 89% | moderate |
| March Weather | -1°C (31°F) | 72 mm (2.9 inches) | 85% | moderate |
| April Weather | 6°C (43°F) | 121 mm (4.8 inches) | 84% | very high |
| May Weather | 13°C (55°F) | 83 mm (3.3 inches) | 78% | very high |
| June Weather | 18°C (65°F) | 74 mm (2.9 inches) | 72% | very high |
| July Weather | 21°C (70°F) | 121 mm (4.7 inches) | 75% | very high |
| August Weather | 21°C (69°F) | 82 mm (3.2 inches) | 74% | very high |
| September Weather | 17°C (62°F) | 70 mm (2.7 inches) | 77% | high |
| October Weather | 10°C (50°F) | 127 mm (5.0 inches) | 85% | moderate |
| November Weather | 2°C (36°F) | 110 mm (4.3 inches) | 86% | moderate |
| December Weather | -4°C (26°F) | 113 mm (4.4 inches) | 85% | low |