December Weather in Hammer, Germany

Last updated: August 23, 2025

In December, the average temperature in Hammer, Germany hovers around 3°C (37°F). Expect the minimum to dip as low as -14°C (7°F), while the maximum can reach up to 13°C (55°F). With an average precipitation of 47 mm (1.9 in) over 12 days, and a humidity level of 93%, be prepared for a chilly and damp month ahead!

December Temperature in Hammer

In December, in Hammer, the average temperature is 3°C (37°F). The maximum can reach 13°C (55°F) and the minimum can be as low as -14°C (7°F). Travelers should be prepared for a wide range of temperatures and pack accordingly.

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

The chart illustrates December temperature patterns in Hammer, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hammer, December typically has an average temperature of 3°C (37°F), with highs reaching up to 13°C (55°F) and lows dropping to around -14°C (7°F).

Data source: Temperature data for Hammer generated using information from the Copernicus Climate Change Service.

December Precipitation in Hammer

In Hammer in December, the total precipitation amount reaches 47 mm (1.9 in) over the course of 12 days.

December Precipitation Trends in Hammer

The chart displays monthly precipitation patterns in Hammer, 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 Hammer, December typically receives around 47 mm (1.9 inches) of precipitation spread over approximately 12 days.

Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

December Humidity in Hammer

In Hammer in December humidity is 93%. With an average temperature of 3°C (37°F), this humidity feels like an oppressive chill clinging to your skin, making outdoor activities less enjoyable and travel uncomfortable as the dampness seeps into your clothes, leaving you feeling cold and clammy.

December Average Humidity in Hammer

This chart illustrates the average monthly humidity levels in Hammer, 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 Hammer is approximately 93%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Hammer

In Hammer 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 Hammer.

Maximum UV Index Levels in Hammer for December

The chart shows the monthly maximum UV Index (UVI) for Hammer 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 Hammer typically reaches 1, which falls under the low exposure category.

Data source: Hammer 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 Hammer Compares to Other Months

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

This table compares monthly weather conditions in Hammer, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	2°C (36°F)	51 mm (2.0 inches)	91%	low
February Weather	2°C (36°F)	40 mm (1.6 inches)	90%	low
March Weather	4°C (40°F)	50 mm (2.0 inches)	88%	moderate
April Weather	8°C (47°F)	38 mm (1.5 inches)	82%	moderate
May Weather	13°C (55°F)	56 mm (2.2 inches)	74%	high
June Weather	18°C (65°F)	53 mm (2.1 inches)	75%	very high
July Weather	19°C (66°F)	105 mm (4.1 inches)	74%	high
August Weather	19°C (67°F)	62 mm (2.4 inches)	71%	high
September Weather	15°C (59°F)	51 mm (2.0 inches)	82%	moderate
October Weather	11°C (52°F)	64 mm (2.5 inches)	86%	moderate
November Weather	6°C (43°F)	47 mm (1.9 inches)	89%	low
December Weather	3°C (37°F)	47 mm (1.9 inches)	93%	low