December Weather in Bron, France

Last updated: August 23, 2025

In December, the average temperature in Bron, France hovers around 5°C (42°F), with minimums dipping to -4°C (25°F) and maximums reaching up to 17°C (62°F). Expect about 136 mm (5.4 in) of precipitation spread across 18 days, contributing to an average humidity level of 92%. Prepare for a chilly and wet month!

December Temperature in Bron

In December in Bron, the average temperature is 5°C (42°F). Maximums can reach 17°C (62°F), while minimums can drop as low as -4°C (25°F). Travelers should be prepared for a chilly climate, with warm clothing for cooler days and layers for any warmer spells.

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

The chart illustrates December temperature patterns in Bron, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bron, December typically has an average temperature of 5°C (42°F), with highs reaching up to 17°C (62°F) and lows dropping to around -4°C (25°F).

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

December Precipitation in Bron

In Bron in December, the total precipitation amount is 136 mm (5.4 in) spread over 18 days.

December Precipitation Trends in Bron

The chart displays monthly precipitation patterns in Bron, 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 Bron, December typically receives around 136 mm (5.4 inches) of precipitation spread over approximately 18 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 Bron

In Bron in December, humidity is 92%. With an average temperature of 5°C (42°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities uncomfortable and travel less enjoyable.

December Average Humidity in Bron

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

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

Maximum UV Index Levels in Bron for December

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

Data source: Bron 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 Bron Compares to Other Months

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

This table compares monthly weather conditions in Bron, 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)	73 mm (2.9 inches)	91%	low
February Weather	6°C (44°F)	60 mm (2.4 inches)	88%	moderate
March Weather	9°C (48°F)	77 mm (3.0 inches)	84%	moderate
April Weather	12°C (54°F)	47 mm (1.9 inches)	81%	high
May Weather	16°C (61°F)	117 mm (4.6 inches)	77%	very high
June Weather	21°C (70°F)	81 mm (3.2 inches)	76%	very high
July Weather	23°C (74°F)	75 mm (3.0 inches)	68%	very high
August Weather	22°C (73°F)	68 mm (2.7 inches)	61%	very high
September Weather	18°C (65°F)	65 mm (2.5 inches)	72%	high
October Weather	13°C (56°F)	97 mm (3.8 inches)	88%	moderate
November Weather	8°C (46°F)	98 mm (3.9 inches)	91%	moderate
December Weather	5°C (42°F)	136 mm (5.4 inches)	92%	low