December Weather in Lyas, France

Last updated: August 23, 2025

In December, the average temperature in Lyas, France hovers around 5°C (41°F). However, be prepared for a range, as temperatures can dip as low as -4°C (25°F) and rise to a pleasant 16°C (61°F). Expect around 108 mm (4.3 in) of precipitation spread over 14 days, contributing to an average humidity of 92%. Enjoy the unique climate, but don’t forget your umbrella!

December Temperature in Lyas

In December in Lyas, the average temperature is 5°C (41°F), with maximums reaching 16°C (61°F) and minimums dropping as low as -4°C (25°F). Travelers should prepare for chilly weather and pack accordingly for both mild and cold conditions.

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

The chart illustrates December temperature patterns in Lyas, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Lyas, December typically has an average temperature of 5°C (41°F), with highs reaching up to 16°C (61°F) and lows dropping to around -4°C (25°F).

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

December Precipitation in Lyas

In Lyas in December, the total precipitation amount is 108 mm (4.3 in) spread over 14 days.

December Precipitation Trends in Lyas

The chart displays monthly precipitation patterns in Lyas, 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 Lyas, December typically receives around 108 mm (4.3 inches) of precipitation spread over approximately 14 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 Lyas

In Lyas in December humidity is 92%. With an average temperature of 5°C (41°F), this humidity feels like a cold, damp blanket enveloping you, making travel uncomfortable and dampening the spirits of those unprepared for the chill.

December Average Humidity in Lyas

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

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

Maximum UV Index Levels in Lyas for December

The chart shows the monthly maximum UV Index (UVI) for Lyas 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 Lyas typically reaches 2, which falls under the low exposure category.

Data source: Lyas 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 Lyas Compares to Other Months

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

This table compares monthly weather conditions in Lyas, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	4°C (39°F)	58 mm (2.3 inches)	91%	low
February Weather	6°C (43°F)	50 mm (2.0 inches)	88%	moderate
March Weather	8°C (47°F)	104 mm (4.1 inches)	84%	high
April Weather	11°C (52°F)	105 mm (4.1 inches)	81%	high
May Weather	15°C (59°F)	123 mm (4.8 inches)	77%	very high
June Weather	19°C (67°F)	87 mm (3.4 inches)	76%	very high
July Weather	22°C (71°F)	92 mm (3.6 inches)	68%	very high
August Weather	21°C (71°F)	64 mm (2.5 inches)	61%	very high
September Weather	17°C (64°F)	61 mm (2.4 inches)	72%	high
October Weather	13°C (55°F)	156 mm (6.2 inches)	88%	moderate
November Weather	7°C (46°F)	147 mm (5.8 inches)	91%	moderate
December Weather	5°C (41°F)	108 mm (4.3 inches)	92%	low