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December Weather in Cologne, France

Last updated: August 23, 2025

In December, the average temperature in Cologne, France hovers around 8°C (47°F). You can expect minimums as low as -4°C (25°F) and maximums reaching up to 19°C (66°F). Throughout the month, there's a likelihood of precipitation totaling 97 mm (3.8 in) over 14 days, and be prepared for high humidity, averaging 88%.

December Temperature in Cologne

In December in Cologne, the average temperature is 8°C (47°F). The maximum can reach 19°C (66°F), while the minimum can drop to -4°C (25°F). Travelers should be prepared for a wide range of temperatures and pack accordingly.

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

The chart illustrates December temperature patterns in Cologne, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cologne, December typically has an average temperature of 8°C (47°F), with highs reaching up to 19°C (66°F) and lows dropping to around -4°C (25°F).
JanFebMarAprMayJunJulAugSepOctNovDec424851566270747468595046
Data source: Temperature data for Cologne 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 Cologne

In Cologne in December, the total precipitation amount is 97 mm (3.8 in) spread over 14 days.

December Precipitation Trends in Cologne

The chart displays monthly precipitation patterns in Cologne, 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 Cologne, December typically receives around 97 mm (3.8 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec505759659489685758637397
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Cologne

In Cologne in December, humidity is 88%. With an average temperature of 8°C (47°F), this humidity feels like a thick, damp blanket wrapping around you, making even short walks feel heavy and uninviting for travel.

December Average Humidity in Cologne

This chart illustrates the average monthly humidity levels in Cologne, 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 Cologne is approximately 88%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%83%80%77%75%74%72%70%73%82%87%88%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Cologne

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

Maximum UV Index Levels in Cologne for December

The chart shows the monthly maximum UV Index (UVI) for Cologne 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 Cologne typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24679101097532
Data source: Cologne 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 Cologne Compares to Other Months

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

This table compares monthly weather conditions in Cologne, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (42°F)50 mm (2.0 inches)87%low
February Weather9°C (48°F)57 mm (2.2 inches)83%moderate
March Weather10°C (51°F)59 mm (2.3 inches)80%high
April Weather13°C (56°F)65 mm (2.5 inches)77%high
May Weather17°C (63°F)94 mm (3.7 inches)75%very high
June Weather21°C (70°F)89 mm (3.5 inches)74%very high
July Weather23°C (74°F)68 mm (2.7 inches)72%very high
August Weather23°C (74°F)57 mm (2.2 inches)70%very high
September Weather20°C (68°F)58 mm (2.3 inches)73%high
October Weather15°C (59°F)63 mm (2.5 inches)82%moderate
November Weather10°C (50°F)73 mm (2.9 inches)87%moderate
December Weather8°C (47°F)97 mm (3.8 inches)88%low

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