December Weather in Castets, France

Last updated: August 23, 2025

In Castets, France, the average temperature in December hovers around 10°C (51°F). Expect a minimum of -1°C (31°F) and a maximum of 18°C (65°F). Be prepared for 171 mm (6.7 in) of precipitation over approximately 16 days, contributing to an average humidity level of 87%.

December Temperature in Castets

In December in Castets, the average temperature is 10°C (51°F). Maximums can reach 18°C (65°F), while minimums can be as low as -1°C (31°F). Be prepared for a range of weather conditions when traveling during this month.

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

The chart illustrates December temperature patterns in Castets, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Castets, December typically has an average temperature of 10°C (51°F), with highs reaching up to 18°C (65°F) and lows dropping to around -1°C (31°F).

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

December Precipitation in Castets

In Castets in December, the precipitation amount is 171 mm (6.7 in) over a span of 16 days.

December Precipitation Trends in Castets

The chart displays monthly precipitation patterns in Castets, 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 Castets, December typically receives around 171 mm (6.7 inches) of precipitation spread over approximately 16 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 Castets

In Castets in December humidity is 87%. With an average temperature of 10°C (51°F), this humidity feels like a heavy blanket enveloping you, making outdoor activities uncomfortable and sticky, and often requiring frequent breaks to stay hydrated and cool.

December Average Humidity in Castets

This chart illustrates the average monthly humidity levels in Castets, 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 Castets is approximately 87%, 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 Castets

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

Maximum UV Index Levels in Castets for December

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

Data source: Castets 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 Castets Compares to Other Months

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

This table compares monthly weather conditions in Castets, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	8°C (47°F)	92 mm (3.6 inches)	86%	low
February Weather	10°C (51°F)	79 mm (3.1 inches)	85%	moderate
March Weather	11°C (53°F)	85 mm (3.3 inches)	82%	moderate
April Weather	14°C (57°F)	66 mm (2.6 inches)	81%	high
May Weather	16°C (62°F)	99 mm (3.9 inches)	80%	very high
June Weather	20°C (68°F)	95 mm (3.7 inches)	81%	very high
July Weather	22°C (71°F)	51 mm (2.0 inches)	80%	very high
August Weather	22°C (71°F)	58 mm (2.3 inches)	76%	very high
September Weather	20°C (68°F)	65 mm (2.6 inches)	75%	high
October Weather	16°C (61°F)	96 mm (3.8 inches)	81%	moderate
November Weather	12°C (53°F)	136 mm (5.3 inches)	85%	moderate
December Weather	10°C (51°F)	171 mm (6.7 inches)	87%	low