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December Weather in Harmstorf, Germany

Last updated: August 23, 2025

In Harmstorf, Germany, the average temperature in December hovers around 4°C (39°F). Expect chilly days, with temperatures dipping as low as -11°C (13°F) at night and peaking at a mild 12°C (55°F) during the day. Precipitation is fairly common, with around 68 mm (2.7 in) expected over 14 days. Coupled with a high average humidity of 90%, this month will surely be a test of your comfort levels!

December Temperature in Harmstorf

In December in Harmstorf, the average temperature is 4°C (39°F). Maximum temperatures can reach 12°C (55°F), while minimums can drop as low as -11°C (13°F). Travelers should be prepared for chilly weather and pack layers to stay comfortable during their visit.

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

The chart illustrates December temperature patterns in Harmstorf, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Harmstorf, December typically has an average temperature of 4°C (39°F), with highs reaching up to 12°C (55°F) and lows dropping to around -11°C (13°F).
JanFebMarAprMayJunJulAugSepOctNovDec373841485565656659524439
Data source: Temperature data for Harmstorf 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 Harmstorf

In Harmstorf in December, the precipitation amount is 68 mm (2.7 in) distributed over a period of 14 days.

December Precipitation Trends in Harmstorf

The chart displays monthly precipitation patterns in Harmstorf, 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 Harmstorf, December typically receives around 68 mm (2.7 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec625665477474897757735068
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Harmstorf

In Harmstorf in December humidity is 90%. With an average temperature of 4°C (39°F), this humidity feels like a damp chill that seeps into your bones, making travel uncomfortable and requiring extra layers to stay warm while navigating the misty streets.

December Average Humidity in Harmstorf

This chart illustrates the average monthly humidity levels in Harmstorf, 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 Harmstorf 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 Harmstorf

In Harmstorf 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 Harmstorf.

Maximum UV Index Levels in Harmstorf for December

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

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

This table compares monthly weather conditions in Harmstorf, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (37°F)62 mm (2.4 inches)91%low
February Weather3°C (38°F)56 mm (2.2 inches)89%low
March Weather5°C (42°F)65 mm (2.6 inches)87%moderate
April Weather9°C (48°F)47 mm (1.8 inches)82%moderate
May Weather13°C (56°F)74 mm (2.9 inches)73%high
June Weather18°C (65°F)74 mm (2.9 inches)66%very high
July Weather18°C (65°F)89 mm (3.5 inches)66%high
August Weather19°C (66°F)77 mm (3.0 inches)67%high
September Weather15°C (59°F)57 mm (2.3 inches)81%moderate
October Weather11°C (53°F)73 mm (2.9 inches)86%moderate
November Weather6°C (44°F)50 mm (2.0 inches)90%low
December Weather4°C (39°F)68 mm (2.7 inches)90%low

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