Last updated: June 24, 2025
In December, the average temperature in Vienna, United States hovers around 4°C (39°F). Temperatures can dip to a chilly -14°C (8°F) at their lowest and reach a moderate 19°C (67°F) at their peak. Expect about 118 mm (4.6 in) of precipitation spread over 12 days, with an average humidity level of 86% contributing to the overall climate experience.
In December in Vienna, the average temperature is 4°C (39°F), with maximums reaching 19°C (67°F) and minimums dropping as low as -14°C (8°F). Travelers should be prepared for a range of temperatures, making layered clothing essential for comfort during their visit.
In Vienna in December, the precipitation amount is 118 mm (4.6 in) spread over 12 days.
In Vienna in December humidity is 86%. With an average temperature of 4°C (39°F), this humidity feels like a chilly mist enveloping you, making it essential to bundle up while exploring, as each breath comes with a damp chill that can be quite refreshing yet starkly invigorating for travelers.
In Vienna in December, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Vienna, you can check the information here.
UV Risk Categories
Weather in Vienna varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Vienna, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 1°C (34°F) | 94 mm (3.7 inches) | 88% | moderate |
| February Weather | 4°C (39°F) | 125 mm (4.9 inches) | 88% | moderate |
| March Weather | 7°C (46°F) | 115 mm (4.5 inches) | 88% | high |
| April Weather | 12°C (55°F) | 147 mm (5.8 inches) | 86% | very high |
| May Weather | 18°C (65°F) | 153 mm (6.0 inches) | 82% | very high |
| June Weather | 22°C (72°F) | 163 mm (6.4 inches) | 84% | very high |
| July Weather | 25°C (77°F) | 119 mm (4.7 inches) | 82% | very high |
| August Weather | 24°C (75°F) | 121 mm (4.8 inches) | 73% | very high |
| September Weather | 21°C (70°F) | 106 mm (4.2 inches) | 73% | very high |
| October Weather | 15°C (60°F) | 120 mm (4.7 inches) | 81% | high |
| November Weather | 7°C (45°F) | 82 mm (3.2 inches) | 89% | moderate |
| December Weather | 4°C (39°F) | 118 mm (4.6 inches) | 86% | moderate |