January Weather in Chateau-d'Olonne, France

Last updated: August 23, 2025

In January, the average temperature in Chateau-d'Olonne, France hovers around 8°C (46°F). Be prepared for those chilly days, as temperatures can drop as low as -2°C (28°F), while the warmer days can reach up to 14°C (57°F). Don't forget your umbrella, as 71 mm (2.8 in) of precipitation is expected over about 12 days. With an average humidity of 88%, it’s a month worth layering up for!

January Temperature in Chateau-d'Olonne

In January in Chateau-d'Olonne, the average temperature is 8°C (46°F). Maximum temperatures can reach 14°C (57°F), while minimums can dip as low as -2°C (28°F). Therefore, travelers should plan for cool conditions and dress in layers to stay comfortable during their visit.

January Weather in Chateau-d'Olonne: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Chateau-d'Olonne, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Chateau-d'Olonne, January typically has an average temperature of 8°C (46°F), with highs reaching up to 14°C (57°F) and lows dropping to around -2°C (28°F).

Data source: Temperature data for Chateau-d'Olonne generated using information from the Copernicus Climate Change Service.

January Precipitation in Chateau-d'Olonne

In Chateau-d'Olonne in January, the precipitation amount is 71 mm (2.8 in) during a total of 12 days.

January Precipitation Trends in Chateau-d'Olonne

The chart displays monthly precipitation patterns in Chateau-d'Olonne, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Chateau-d'Olonne, January typically receives around 71 mm (2.8 inches) of precipitation spread over approximately 12 days.

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

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Millimeters (mm) Inches (in)

January Humidity in Chateau-d'Olonne

In Chateau-d'Olonne in January, humidity is 88%. With an average temperature of 8°C (46°F), this humidity feels like a damp chill that seeps into your bones, making outdoor exploration feel much more uncomfortable than the temperature alone would suggest.

January Average Humidity in Chateau-d'Olonne

This chart illustrates the average monthly humidity levels in Chateau-d'Olonne, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Chateau-d'Olonne is approximately 88%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Chateau-d'Olonne

In Chateau-d'Olonne in January, 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 Chateau-d'Olonne, you can visit Hourly UV Index in Chateau-d'Olonne.

Maximum UV Index Levels in Chateau-d'Olonne for January

The chart shows the monthly maximum UV Index (UVI) for Chateau-d'Olonne in January, 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 January, the maximum UV index in Chateau-d'Olonne typically reaches 2, which falls under the low exposure category.

Data source: Chateau-d'Olonne January 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 January Weather in Chateau-d'Olonne Compares to Other Months

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

This table compares monthly weather conditions in Chateau-d'Olonne, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	8°C (46°F)	71 mm (2.8 inches)	88%	low
February Weather	9°C (48°F)	78 mm (3.1 inches)	87%	moderate
March Weather	10°C (50°F)	76 mm (3.0 inches)	84%	moderate
April Weather	12°C (54°F)	35 mm (1.4 inches)	83%	high
May Weather	15°C (59°F)	58 mm (2.3 inches)	81%	very high
June Weather	18°C (65°F)	68 mm (2.7 inches)	75%	very high
July Weather	20°C (69°F)	30 mm (1.2 inches)	65%	very high
August Weather	20°C (68°F)	37 mm (1.5 inches)	67%	very high
September Weather	18°C (65°F)	46 mm (1.8 inches)	75%	high
October Weather	15°C (59°F)	87 mm (3.4 inches)	85%	moderate
November Weather	11°C (52°F)	106 mm (4.2 inches)	88%	moderate
December Weather	10°C (50°F)	140 mm (5.5 inches)	90%	low