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January Weather in Castelsarrasin, France

Last updated: August 23, 2025

In January, the average temperature in Castelsarrasin, France hovers around 5°C (42°F), while the minimum plummets to -8°C (18°F) and can peak at a pleasant 18°C (65°F). Expect 49 mm (1.9 in) of precipitation spread over 9 days, contributing to an average humidity of 87%. Prepare for a cool and wet month!

January Temperature in Castelsarrasin

In January in Castelsarrasin, the average temperature is 5°C (42°F). Maximums can reach 18°C (65°F), and minimums can be as low as -8°C (18°F). Be prepared for chilly weather and pack layers if you plan to visit during this time.

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

The chart illustrates January temperature patterns in Castelsarrasin, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Castelsarrasin, January typically has an average temperature of 5°C (42°F), with highs reaching up to 18°C (65°F) and lows dropping to around -8°C (18°F).
JanFebMarAprMayJunJulAugSepOctNovDec424751566370747468595046
Data source: Temperature data for Castelsarrasin 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 Castelsarrasin

In Castelsarrasin in January, the total precipitation amount is 49 mm (1.9 in) spread over 9 days.

January Precipitation Trends in Castelsarrasin

The chart displays monthly precipitation patterns in Castelsarrasin, 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 Castelsarrasin, January typically receives around 49 mm (1.9 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec4957595687864954486269103
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Castelsarrasin

In Castelsarrasin in January humidity is 87%. With an average temperature of 5°C (42°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities less enjoyable and travel less inviting as the air becomes heavy and oppressive.

January Average Humidity in Castelsarrasin

This chart illustrates the average monthly humidity levels in Castelsarrasin, 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 Castelsarrasin is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%83%80%77%75%74%72%70%73%82%87%88%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Castelsarrasin

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

Maximum UV Index Levels in Castelsarrasin for January

The chart shows the monthly maximum UV Index (UVI) for Castelsarrasin 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 Castelsarrasin typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec23578101097532
Data source: Castelsarrasin 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 Castelsarrasin Compares to Other Months

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

This table compares monthly weather conditions in Castelsarrasin, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (42°F)49 mm (1.9 inches)87%low
February Weather9°C (48°F)57 mm (2.2 inches)83%moderate
March Weather10°C (51°F)59 mm (2.3 inches)80%moderate
April Weather13°C (56°F)56 mm (2.2 inches)77%high
May Weather17°C (63°F)87 mm (3.4 inches)75%very high
June Weather21°C (70°F)86 mm (3.4 inches)74%very high
July Weather24°C (75°F)49 mm (1.9 inches)72%very high
August Weather23°C (74°F)53 mm (2.1 inches)70%very high
September Weather20°C (68°F)48 mm (1.9 inches)73%high
October Weather15°C (59°F)62 mm (2.4 inches)82%moderate
November Weather10°C (50°F)69 mm (2.7 inches)87%moderate
December Weather8°C (46°F)103 mm (4.1 inches)88%low

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