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December Weather in Juelich, Germany

Last updated: August 23, 2025

In Juelich, Germany, the average temperature in December hovers around 5°C (42°F), with lows dipping to -5°C (23°F) and highs reaching up to 15°C (60°F). Expect a fair amount of rain, with 93 mm (3.6 in) of precipitation spread over 18 days. The atmosphere is notably humid, boasting an average humidity of 92%. Be prepared for a chilly and damp experience!

December Temperature in Juelich

In December in Juelich, the average temperature is 5°C (42°F). Maximums can reach 15°C (60°F), and minimums can be as low as -5°C (23°F). Be prepared for chilly weather and pack layers to stay comfortable while exploring the area.

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

The chart illustrates December temperature patterns in Juelich, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Juelich, December typically has an average temperature of 5°C (42°F), with highs reaching up to 15°C (60°F) and lows dropping to around -5°C (23°F).
JanFebMarAprMayJunJulAugSepOctNovDec394145505766676760544541
Data source: Temperature data for Juelich 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 Juelich

In Juelich in December, the precipitation amount is 93 mm (3.6 in) over the course of 18 days.

December Precipitation Trends in Juelich

The chart displays monthly precipitation patterns in Juelich, 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 Juelich, December typically receives around 93 mm (3.6 inches) of precipitation spread over approximately 18 days.
JanFebMarAprMayJunJulAugSepOctNovDec666871345966816256755493
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Juelich

In Juelich in December, humidity is 92%. With an average temperature of 5°C (42°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities uncomfortable and travel less enjoyable.

December Average Humidity in Juelich

This chart illustrates the average monthly humidity levels in Juelich, 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 Juelich is approximately 92%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%90%87%84%77%74%72%71%81%88%91%92%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Juelich

In Juelich 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 Juelich.

Maximum UV Index Levels in Juelich for December

The chart shows the monthly maximum UV Index (UVI) for Juelich 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 Juelich typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124578875421
Data source: Juelich 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 Juelich Compares to Other Months

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

This table compares monthly weather conditions in Juelich, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (39°F)66 mm (2.6 inches)91%low
February Weather5°C (41°F)68 mm (2.7 inches)90%low
March Weather7°C (45°F)71 mm (2.8 inches)87%moderate
April Weather10°C (50°F)33 mm (1.3 inches)84%moderate
May Weather14°C (57°F)59 mm (2.3 inches)77%high
June Weather19°C (66°F)66 mm (2.6 inches)74%very high
July Weather19°C (67°F)81 mm (3.2 inches)72%very high
August Weather19°C (67°F)61 mm (2.4 inches)71%high
September Weather16°C (60°F)56 mm (2.2 inches)81%moderate
October Weather12°C (54°F)74 mm (2.9 inches)88%moderate
November Weather7°C (45°F)54 mm (2.1 inches)91%low
December Weather5°C (42°F)93 mm (3.6 inches)92%low

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