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December Weather in Altenstadt, Germany

Last updated: August 23, 2025

In December, the average temperature in Altenstadt, Germany hovers around 1°C (33°F). Expect fluctuations, with minimums dipping as low as -12°C (11°F) and highs reaching up to 12°C (54°F). Stay prepared for wet conditions, as 110 mm (4.3 in) of precipitation is likely over 17 days, accompanied by a high average humidity of 90%.

December Temperature in Altenstadt

In December in Altenstadt, the average temperature is 1°C (33°F). Maximums can reach 12°C (54°F), and minimums can be as low as -12°C (11°F). Travelers should prepare for chilly weather and pack accordingly to enjoy their stay in Altenstadt.

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

The chart illustrates December temperature patterns in Altenstadt, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Altenstadt, December typically has an average temperature of 1°C (33°F), with highs reaching up to 12°C (54°F) and lows dropping to around -12°C (11°F).
JanFebMarAprMayJunJulAugSepOctNovDec303439465261636355483933
Data source: Temperature data for Altenstadt 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 Altenstadt

In Altenstadt in December, the precipitation amount is 110 mm (4.3 in) spread over 17 days.

December Precipitation Trends in Altenstadt

The chart displays monthly precipitation patterns in Altenstadt, 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 Altenstadt, December typically receives around 110 mm (4.3 inches) of precipitation spread over approximately 17 days.
JanFebMarAprMayJunJulAugSepOctNovDec9882887816314816516912010167110
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Altenstadt

In Altenstadt in December humidity is 90%. With an average temperature of 1°C (33°F), this humidity feels like a bone-chilling dampness that seeps into your clothes, making every step outside feel heavy and uncomfortable for traveling.

December Average Humidity in Altenstadt

This chart illustrates the average monthly humidity levels in Altenstadt, 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 Altenstadt 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 Altenstadt

In Altenstadt 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 Altenstadt, you can visit Hourly UV Index in Altenstadt.

Maximum UV Index Levels in Altenstadt for December

The chart shows the monthly maximum UV Index (UVI) for Altenstadt 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 Altenstadt typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235789986432
Data source: Altenstadt 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 Altenstadt Compares to Other Months

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

This table compares monthly weather conditions in Altenstadt, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)98 mm (3.8 inches)93%low
February Weather1°C (34°F)82 mm (3.2 inches)89%moderate
March Weather4°C (39°F)88 mm (3.5 inches)86%moderate
April Weather8°C (46°F)78 mm (3.1 inches)83%high
May Weather11°C (52°F)163 mm (6.4 inches)78%very high
June Weather16°C (62°F)148 mm (5.8 inches)79%very high
July Weather17°C (63°F)165 mm (6.5 inches)82%very high
August Weather17°C (63°F)169 mm (6.6 inches)80%very high
September Weather13°C (55°F)120 mm (4.7 inches)83%high
October Weather9°C (48°F)101 mm (4.0 inches)90%moderate
November Weather4°C (39°F)67 mm (2.6 inches)89%moderate
December Weather1°C (33°F)110 mm (4.3 inches)90%low

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