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December Weather in Trostberg an der Alz, Germany

Last updated: August 23, 2025

In December, the average temperature in Trostberg an der Alz, Germany hovers around 2°C (37°F). Expect chilly days as the temperature can dip to a minimum of -6°C (21°F), while occasionally peaking at a comfortable 15°C (59°F). With an average precipitation of 108 mm (4.2 in) over roughly 16 days, it's wise to prepare for some rain. Additionally, the air will feel quite humid, with an average humidity level of 90%.

December Temperature in Trostberg an der Alz

In December in Trostberg an der Alz, the average temperature is 2°C (37°F). The maximum can reach 15°C (59°F), and the minimum can be as low as -6°C (21°F). Be prepared for chilly weather, and pack accordingly to enjoy your travels!

December Weather in Trostberg an der Alz: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Trostberg an der Alz, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Trostberg an der Alz, December typically has an average temperature of 2°C (37°F), with highs reaching up to 15°C (59°F) and lows dropping to around -6°C (21°F).
JanFebMarAprMayJunJulAugSepOctNovDec343742505666676759514136
Data source: Temperature data for Trostberg an der Alz 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 Trostberg an der Alz

In Trostberg an der Alz in December, the precipitation amount is 108 mm (4.2 in), falling over the course of 16 days.

December Precipitation Trends in Trostberg an der Alz

The chart displays monthly precipitation patterns in Trostberg an der Alz, 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 Trostberg an der Alz, December typically receives around 108 mm (4.2 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec847878581431291361451039565108
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Trostberg an der Alz

In Trostberg an der Alz in December, humidity is 90%. With an average temperature of 2°C (37°F), this humidity feels like a damp chill that seeps into your bones, making even a short walk feel exhausting and uncomfortable for traveling.

December Average Humidity in Trostberg an der Alz

This chart illustrates the average monthly humidity levels in Trostberg an der Alz, 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 Trostberg an der Alz is approximately 90%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec93%89%86%83%78%79%82%80%83%90%89%90%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Trostberg an der Alz

In Trostberg an der Alz in December, the maximum UV index is 1, which corresponds to a low Exposure Category. This means you have a time to burn of 45 minutes. For more details, you can check the Hourly UV Index in Trostberg an der Alz.

Maximum UV Index Levels in Trostberg an der Alz for December

The chart shows the monthly maximum UV Index (UVI) for Trostberg an der Alz 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 Trostberg an der Alz typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689986421
Data source: Trostberg an der Alz 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 Trostberg an der Alz Compares to Other Months

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

This table compares monthly weather conditions in Trostberg an der Alz, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)84 mm (3.3 inches)93%low
February Weather3°C (38°F)78 mm (3.1 inches)89%moderate
March Weather5°C (42°F)78 mm (3.1 inches)86%moderate
April Weather10°C (50°F)58 mm (2.3 inches)83%high
May Weather13°C (56°F)143 mm (5.6 inches)78%very high
June Weather19°C (66°F)129 mm (5.1 inches)79%very high
July Weather19°C (67°F)136 mm (5.4 inches)82%very high
August Weather19°C (67°F)145 mm (5.7 inches)80%very high
September Weather15°C (59°F)103 mm (4.0 inches)83%high
October Weather11°C (51°F)95 mm (3.7 inches)90%moderate
November Weather5°C (41°F)65 mm (2.5 inches)89%low
December Weather2°C (37°F)108 mm (4.2 inches)90%low

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