January Weather in Castres, France

Last updated: August 23, 2025

In Castres, France, the average temperature in January hovers around 4°C (40°F). During this time, temperatures can dip as low as -9°C (16°F), while they can also rise to a pleasant 18°C (65°F). Expect about 114 mm (4.5 in) of precipitation spread over 11 days, with an average humidity of 87%, making for a decidedly damp atmosphere. Stay prepared for the varied weather!

January Temperature in Castres

In January in Castres, the average temperature is 4°C (40°F), with maximums reaching up to 18°C (65°F) and minimums dropping as low as -9°C (16°F). Be sure to pack warm layers while enjoying the crisp winter scenery and occasional mild days during your travels.

January Weather in Castres: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Castres, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Castres, January typically has an average temperature of 4°C (40°F), with highs reaching up to 18°C (65°F) and lows dropping to around -9°C (16°F).

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

January Precipitation in Castres

In Castres in January, the total precipitation amount is 114 mm (4.5 in) spread over 11 days.

January Precipitation Trends in Castres

The chart displays monthly precipitation patterns in Castres, 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 Castres, January typically receives around 114 mm (4.5 inches) of precipitation spread over approximately 11 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 Castres

In Castres in January humidity is 87%. With an average temperature of 4°C (40°F), this humidity feels like an uncomfortable chill that seeps into your bones, making it essential to dress warmly and prepare for damp conditions, which can dampen your spirits while traveling.

January Average Humidity in Castres

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

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

Maximum UV Index Levels in Castres for January

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

Data source: Castres 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 Castres Compares to Other Months

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

This table compares monthly weather conditions in Castres, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	4°C (40°F)	114 mm (4.5 inches)	87%	low
February Weather	7°C (45°F)	90 mm (3.6 inches)	83%	moderate
March Weather	9°C (48°F)	99 mm (3.9 inches)	80%	high
April Weather	11°C (52°F)	72 mm (2.8 inches)	77%	high
May Weather	15°C (59°F)	127 mm (5.0 inches)	75%	very high
June Weather	19°C (66°F)	78 mm (3.1 inches)	74%	very high
July Weather	21°C (70°F)	73 mm (2.9 inches)	72%	very high
August Weather	21°C (71°F)	36 mm (1.4 inches)	70%	very high
September Weather	18°C (64°F)	67 mm (2.6 inches)	73%	high
October Weather	13°C (56°F)	95 mm (3.7 inches)	82%	moderate
November Weather	8°C (47°F)	103 mm (4.1 inches)	87%	moderate
December Weather	6°C (44°F)	155 mm (6.1 inches)	88%	low