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December Weather in Aach, Germany

Last updated: August 23, 2025

In December, the average temperature in Aach, Germany hovers around 2°C (36°F). Expect chillier days with minimums dropping to -6°C (21°F), while highs can reach up to 13°C (56°F). Precipitation is quite frequent, with around 103 mm (4.1 in) expected over 17 days. Don’t forget your layers, as the average humidity stands at a brisk 90%!

December Temperature in Aach

In December in Aach, the average temperature is 2°C (36°F). The maximum can reach 13°C (56°F), and the minimum can be as low as -6°C (21°F). Travelers should be prepared for chilly conditions and pack warm clothing.

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

The chart illustrates December temperature patterns in Aach, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Aach, December typically has an average temperature of 2°C (36°F), with highs reaching up to 13°C (56°F) and lows dropping to around -6°C (21°F).
JanFebMarAprMayJunJulAugSepOctNovDec333842505665676759504036
Data source: Temperature data for Aach 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 Aach

In Aach in December, the precipitation amount is 103 mm (4.1 in) over the course of 17 days.

December Precipitation Trends in Aach

The chart displays monthly precipitation patterns in Aach, 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 Aach, December typically receives around 103 mm (4.1 inches) of precipitation spread over approximately 17 days.
JanFebMarAprMayJunJulAugSepOctNovDec8163735310911376102667854103
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Aach

In Aach in December humidity is 90%. With an average temperature of 2°C (36°F), this humidity feels like a heavy blanket wrapping around you, making every step feel sluggish and damp, and turning a simple stroll into a test of endurance for travelers.

December Average Humidity in Aach

This chart illustrates the average monthly humidity levels in Aach, 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 Aach is approximately 90%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%89%87%84%80%82%83%80%83%90%89%90%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Aach

In Aach 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 Aach.

Maximum UV Index Levels in Aach for December

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

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

This table compares monthly weather conditions in Aach, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)81 mm (3.2 inches)92%low
February Weather3°C (38°F)63 mm (2.5 inches)89%moderate
March Weather6°C (42°F)73 mm (2.9 inches)87%moderate
April Weather10°C (50°F)53 mm (2.1 inches)84%high
May Weather13°C (56°F)109 mm (4.3 inches)80%very high
June Weather18°C (65°F)113 mm (4.5 inches)82%very high
July Weather20°C (68°F)76 mm (3.0 inches)83%very high
August Weather19°C (67°F)102 mm (4.0 inches)80%very high
September Weather15°C (59°F)66 mm (2.6 inches)83%high
October Weather10°C (50°F)78 mm (3.1 inches)90%moderate
November Weather4°C (40°F)54 mm (2.1 inches)88%low
December Weather2°C (36°F)103 mm (4.1 inches)90%low

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