December Weather in Harze, Belgium

Last updated: August 22, 2025

In Harze, Belgium, the average temperature for December hovers around 4°C (39°F). Expect a minimum of -5°C (23°F) and a maximum of 14°C (57°F). During this month, you'll likely encounter about 139 mm (5.5 in) of precipitation over 21 days, contributing to an average humidity of 92%.

December Temperature in Harze

In December in Harze, the average temperature is 4°C (39°F). The maximum can reach 14°C (57°F), and the minimum can be as low as -5°C (23°F). It's a good idea to pack warm layers and prepare for varying weather conditions while traveling to Harze.

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

The chart illustrates December temperature patterns in Harze, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Harze, December typically has an average temperature of 4°C (39°F), with highs reaching up to 14°C (57°F) and lows dropping to around -5°C (23°F).

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

December Precipitation in Harze

In Harze in December, the total precipitation amount is 139 mm (5.5 in) spread over the course of 21 days.

December Precipitation Trends in Harze

The chart displays monthly precipitation patterns in Harze, 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 Harze, December typically receives around 139 mm (5.5 inches) of precipitation spread over approximately 21 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 Harze

In Harze in December humidity is 92%. With an average temperature of 4°C (39°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities less enjoyable and travel feel burdensome as you navigate through the thick, muggy air.

December Average Humidity in Harze

This chart illustrates the average monthly humidity levels in Harze, 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 Harze is approximately 92%, 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 Harze

In Harze 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 Harze.

Maximum UV Index Levels in Harze for December

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

Data source: Harze 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 Harze Compares to Other Months

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

This table compares monthly weather conditions in Harze, 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)	100 mm (3.9 inches)	91%	low
February Weather	4°C (39°F)	91 mm (3.6 inches)	90%	moderate
March Weather	6°C (43°F)	108 mm (4.2 inches)	87%	moderate
April Weather	9°C (48°F)	45 mm (1.8 inches)	84%	moderate
May Weather	12°C (55°F)	81 mm (3.2 inches)	77%	very high
June Weather	17°C (63°F)	91 mm (3.6 inches)	74%	very high
July Weather	18°C (64°F)	97 mm (3.8 inches)	72%	very high
August Weather	18°C (64°F)	83 mm (3.3 inches)	71%	high
September Weather	14°C (58°F)	74 mm (2.9 inches)	81%	high
October Weather	11°C (52°F)	96 mm (3.8 inches)	88%	moderate
November Weather	6°C (43°F)	71 mm (2.8 inches)	91%	low
December Weather	4°C (39°F)	139 mm (5.5 inches)	92%	low