December Weather in Treignes, Belgium

Last updated: August 22, 2025

In December, the average temperature in Treignes, Belgium hovers around 4°C (40°F). Expect minimums dipping to -4°C (25°F) and maximums reaching up to 14°C (57°F). With an average precipitation of 130 mm (5.1 in) over 20 days, it’s advisable to prepare for a wet month. Plus, the atmosphere is quite humid, with an average humidity level of 93%.

December Temperature in Treignes

In December in Treignes, the average temperature is 4°C (40°F), with maximums reaching up to 14°C (57°F) and minimums dropping as low as -4°C (25°F). Travelers should pack accordingly, as conditions can vary significantly throughout the day.

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

The chart illustrates December temperature patterns in Treignes, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Treignes, 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 -4°C (25°F).

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

December Precipitation in Treignes

In Treignes in December, the total precipitation amount is 130 mm (5.1 in) spread over 20 days.

December Precipitation Trends in Treignes

The chart displays monthly precipitation patterns in Treignes, 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 Treignes, December typically receives around 130 mm (5.1 inches) of precipitation spread over approximately 20 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

December Humidity in Treignes

In Treignes in December, humidity is 93%. With an average temperature of 4°C (40°F), this humidity feels like a cold, damp blanket wrapping around you, making travel uncomfortable and requiring extra layers to stay warm, as every step can feel heavy in the thick, moisture-laden air.

December Average Humidity in Treignes

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

In Treignes 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 Treignes.

Maximum UV Index Levels in Treignes for December

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

Data source: Treignes 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 Treignes Compares to Other Months

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

This table compares monthly weather conditions in Treignes, 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 (37°F)	83 mm (3.3 inches)	91%	low
February Weather	4°C (40°F)	83 mm (3.3 inches)	89%	moderate
March Weather	6°C (44°F)	93 mm (3.7 inches)	86%	moderate
April Weather	9°C (49°F)	48 mm (1.9 inches)	84%	high
May Weather	13°C (55°F)	77 mm (3.0 inches)	82%	very high
June Weather	17°C (63°F)	81 mm (3.2 inches)	82%	very high
July Weather	18°C (65°F)	78 mm (3.1 inches)	80%	very high
August Weather	18°C (65°F)	84 mm (3.3 inches)	76%	high
September Weather	15°C (59°F)	69 mm (2.7 inches)	81%	moderate
October Weather	11°C (52°F)	100 mm (3.9 inches)	88%	moderate
November Weather	6°C (43°F)	71 mm (2.8 inches)	92%	low
December Weather	4°C (40°F)	130 mm (5.1 inches)	93%	low