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December Weather in Vienna, United States

Last updated: June 24, 2025

In December, the average temperature in Vienna, United States hovers around 5°C (42°F), with fluctuations ranging from a brisk -14°C (7°F) to a balmy 23°C (74°F). Expect 91 mm (3.6 in) of precipitation over 8 days, contributing to an average humidity of 88%, making it a month rich in atmospheric activity.

December Temperature in Vienna

In December in Vienna, the average temperature is 5°C (42°F), with maximums reaching 23°C (74°F) and minimums dropping as low as -14°C (7°F). Travelers should be prepared for a wide range of temperatures, making layered clothing essential for comfort during their visit.

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

The chart illustrates December 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, December typically has an average temperature of 5°C (42°F), with highs reaching up to 23°C (74°F) and lows dropping to around -14°C (7°F).
JanFebMarAprMayJunJulAugSepOctNovDec363949576877807773614642
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.

December Precipitation in Vienna

In Vienna in December, the total precipitation amount is 91 mm (3.6 in) over the course of 8 days.

December Precipitation Trends in Vienna

The chart displays monthly precipitation patterns in Vienna, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Vienna, December typically receives around 91 mm (3.6 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec10212615314014710810191731339691
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Vienna

In Vienna in December humidity is 88%. With an average temperature of 5°C (42°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities less appealing and leading you to seek warmth indoors instead.

December Average Humidity in Vienna

This chart illustrates the average monthly humidity levels in Vienna, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Vienna is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%84%84%80%82%83%80%76%75%75%85%88%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Vienna

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.

Maximum UV Index Levels in Vienna for December

The chart shows the monthly maximum UV Index (UVI) for Vienna in December, 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 December, the maximum UV index in Vienna typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35710111110109753
Data source: Vienna December 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 December 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 December’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 December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather2°C (36°F)102 mm (4.0 inches)86%moderate
February Weather4°C (39°F)126 mm (5.0 inches)84%moderate
March Weather10°C (49°F)153 mm (6.0 inches)84%high
April Weather14°C (57°F)140 mm (5.5 inches)80%very high
May Weather20°C (68°F)147 mm (5.8 inches)82%extreme
June Weather25°C (77°F)108 mm (4.3 inches)83%extreme
July Weather27°C (80°F)101 mm (4.0 inches)79%very high
August Weather25°C (77°F)91 mm (3.6 inches)76%very high
September Weather23°C (73°F)72 mm (2.9 inches)75%very high
October Weather16°C (61°F)132 mm (5.2 inches)74%high
November Weather8°C (46°F)96 mm (3.8 inches)85%moderate
December Weather5°C (42°F)91 mm (3.6 inches)88%moderate

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