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December Weather in Giesen, Germany

Last updated: August 23, 2025

In Giesen, Germany during December, the average temperature hovers around 4°C (40°F). Expect minimums as low as -10°C (14°F) and maximums reaching 14°C (57°F). With an average precipitation of 69 mm (2.7 in) over 15 days, you'll want to bring an umbrella! Additionally, the humidity is notably high at 90%, making the air feel quite damp.

December Temperature in Giesen

In December in Giesen, the average temperature is 4°C (40°F). Maximum temperatures can reach 14°C (57°F), while minimums can drop as low as -10°C (14°F). Be prepared for chilly weather and pack accordingly for your travels!

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

The chart illustrates December temperature patterns in Giesen, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Giesen, December typically has an average temperature of 4°C (40°F), with highs reaching up to 14°C (57°F) and lows dropping to around -10°C (14°F).
JanFebMarAprMayJunJulAugSepOctNovDec373842485665666759534439
Data source: Temperature data for Giesen 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 Giesen

In Giesen in December, the precipitation amount is 69 mm (2.7 in) over the course of 15 days.

December Precipitation Trends in Giesen

The chart displays monthly precipitation patterns in Giesen, 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 Giesen, December typically receives around 69 mm (2.7 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec586064446368816759714469
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Giesen

In Giesen in December humidity is 90%. With an average temperature of 4°C (40°F), this humidity feels like a damp chill that penetrates your clothes, making even short excursions outside seem uncomfortable and uninviting.

December Average Humidity in Giesen

This chart illustrates the average monthly humidity levels in Giesen, 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 Giesen is approximately 90%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%87%82%73%66%66%67%81%86%90%90%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Giesen

In Giesen 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 Giesen.

Maximum UV Index Levels in Giesen for December

The chart shows the monthly maximum UV Index (UVI) for Giesen 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 Giesen typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124578775321
Data source: Giesen 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 Giesen Compares to Other Months

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

This table compares monthly weather conditions in Giesen, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (37°F)58 mm (2.3 inches)91%low
February Weather3°C (39°F)59 mm (2.3 inches)89%low
March Weather6°C (42°F)63 mm (2.5 inches)87%moderate
April Weather9°C (49°F)44 mm (1.7 inches)82%moderate
May Weather13°C (56°F)63 mm (2.5 inches)73%high
June Weather18°C (65°F)68 mm (2.7 inches)66%very high
July Weather19°C (66°F)81 mm (3.2 inches)66%high
August Weather19°C (67°F)67 mm (2.6 inches)67%high
September Weather15°C (59°F)59 mm (2.3 inches)81%moderate
October Weather12°C (53°F)71 mm (2.8 inches)86%moderate
November Weather7°C (44°F)44 mm (1.7 inches)90%low
December Weather4°C (40°F)69 mm (2.7 inches)90%low

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