December Weather in Untersee, Austria

Last updated: August 22, 2025

In December, the average temperature in Untersee, Austria hovers around -4°C (26°F). Expect it to plunge as low as -20°C (-3°F) during cold snaps, while highs can reach up to 8°C (47°F). Be prepared for wet days, as 161 mm (6.4 in) of precipitation typically falls over 19 days, contributing to the average humidity of 89%.

December Temperature in Untersee

In December in Untersee, the average temperature is -4°C (26°F). The maximum can reach 8°C (47°F) and the minimum can be as low as -20°C (-3°F). Be prepared for cold and potentially extreme weather if you plan to travel during this time.

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

The chart illustrates December temperature patterns in Untersee, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Untersee, December typically has an average temperature of -4°C (26°F), with highs reaching up to 8°C (47°F) and lows dropping to around -20°C (-3°F).

Data source: Temperature data for Untersee generated using information from the Copernicus Climate Change Service.

December Precipitation in Untersee

In Untersee in December, the total precipitation amount is 161 mm (6.4 in) spread over 19 days.

December Precipitation Trends in Untersee

The chart displays monthly precipitation patterns in Untersee, 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 Untersee, December typically receives around 161 mm (6.4 inches) of precipitation spread over approximately 19 days.

Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

December Humidity in Untersee

In Untersee in December, humidity is 89%. With an average temperature of -4°C (26°F), this humidity feels like a biting chill that clings to your skin, making every step outdoors feel like traversing through a frosty fog.

December Average Humidity in Untersee

This chart illustrates the average monthly humidity levels in Untersee, 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 Untersee is approximately 89%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Untersee

In Untersee in December, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Untersee, you can visit Hourly UV Index in Untersee.

Maximum UV Index Levels in Untersee for December

The chart shows the monthly maximum UV Index (UVI) for Untersee 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 Untersee typically reaches 2, which falls under the low exposure category.

Data source: Untersee 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 Untersee Compares to Other Months

Weather in Untersee varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Untersee, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Untersee, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-5°C (23°F)	127 mm (5.0 inches)	91%	low
February Weather	-3°C (28°F)	105 mm (4.1 inches)	87%	moderate
March Weather	0°C (32°F)	120 mm (4.7 inches)	82%	high
April Weather	4°C (40°F)	99 mm (3.9 inches)	79%	high
May Weather	8°C (47°F)	210 mm (8.2 inches)	74%	very high
June Weather	14°C (58°F)	172 mm (6.8 inches)	75%	very high
July Weather	14°C (58°F)	205 mm (8.1 inches)	74%	very high
August Weather	15°C (59°F)	205 mm (8.1 inches)	68%	very high
September Weather	10°C (51°F)	164 mm (6.5 inches)	74%	high
October Weather	6°C (43°F)	136 mm (5.4 inches)	88%	moderate
November Weather	1°C (34°F)	97 mm (3.8 inches)	90%	moderate
December Weather	-4°C (26°F)	161 mm (6.4 inches)	89%	low