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January Weather in Castillonnes, France

Last updated: August 23, 2025

In January, the average temperature in Castillonnes, France hovers around 5°C (42°F). You can expect a minimum chill of -7°C (19°F) and occasional highs reaching up to 18°C (64°F). Be prepared for some wet days, as 60 mm (2.4 in) of precipitation might grace the region over approximately 9 days. With an average humidity level of 90%, it's a time when you can truly feel the season's embrace!

January Temperature in Castillonnes

In January in Castillonnes, the average temperature is 5°C (42°F). Maximum temperatures can reach 18°C (64°F), while minimums can dip as low as -7°C (19°F). Be sure to pack layers to stay comfortable during your travels!

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

The chart illustrates January temperature patterns in Castillonnes, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Castillonnes, January typically has an average temperature of 5°C (42°F), with highs reaching up to 18°C (64°F) and lows dropping to around -7°C (19°F).
JanFebMarAprMayJunJulAugSepOctNovDec424750566269737267584945
Data source: Temperature data for Castillonnes generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

January Precipitation in Castillonnes

In Castillonnes in January, the total precipitation amount is 60 mm (2.4 in), occurring over a span of 9 days.

January Precipitation Trends in Castillonnes

The chart displays monthly precipitation patterns in Castillonnes, 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 Castillonnes, January typically receives around 60 mm (2.4 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec6067765690944839577775115
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Castillonnes

In Castillonnes in January, humidity is 90%. With an average temperature of 5°C (42°F), this humidity feels like a chilling dampness that seeps into your bones, making outdoor activities uncomfortable and travel less enjoyable.

January Average Humidity in Castillonnes

This chart illustrates the average monthly humidity levels in Castillonnes, 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 Castillonnes is approximately 90%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%87%85%84%84%82%79%75%79%86%90%92%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Castillonnes

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

Maximum UV Index Levels in Castillonnes for January

The chart shows the monthly maximum UV Index (UVI) for Castillonnes 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 Castillonnes typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2367810997532
Data source: Castillonnes 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 Castillonnes Compares to Other Months

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

This table compares monthly weather conditions in Castillonnes, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (42°F)60 mm (2.4 inches)90%low
February Weather8°C (47°F)67 mm (2.7 inches)87%moderate
March Weather10°C (51°F)76 mm (3.0 inches)85%high
April Weather13°C (56°F)56 mm (2.2 inches)84%high
May Weather17°C (62°F)90 mm (3.6 inches)84%very high
June Weather20°C (69°F)94 mm (3.7 inches)82%very high
July Weather23°C (73°F)48 mm (1.9 inches)79%very high
August Weather22°C (72°F)39 mm (1.5 inches)75%very high
September Weather19°C (67°F)57 mm (2.2 inches)79%high
October Weather15°C (59°F)77 mm (3.0 inches)86%moderate
November Weather9°C (49°F)75 mm (2.9 inches)90%moderate
December Weather7°C (46°F)115 mm (4.5 inches)92%low

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