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January Weather in Fos-sur-Mer, France

Last updated: August 23, 2025

In January, the average temperature in Fos-sur-Mer, France is a cool 7°C (46°F). Visitors can expect a minimum temperature of -4°C (25°F) and a maximum of 19°C (66°F). During this month, the region receives approximately 42 mm (1.7 in) of precipitation across 6 days, alongside a notable average humidity of 82%.

January Temperature in Fos-sur-Mer

In January in Fos-sur-Mer, the average temperature is 7°C (46°F). Maximums can reach 19°C (66°F) and minimums can drop as low as -4°C (25°F). Be prepared for a mix of chilly and mild days, making it an ideal time for layering and exploring the local scenery.

January Weather in Fos-sur-Mer: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Fos-sur-Mer, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Fos-sur-Mer, January typically has an average temperature of 7°C (46°F), with highs reaching up to 19°C (66°F) and lows dropping to around -4°C (25°F).
JanFebMarAprMayJunJulAugSepOctNovDec455054596675797971635448
Data source: Temperature data for Fos-sur-Mer 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 Fos-sur-Mer

In Fos-sur-Mer in January, the total precipitation amount is 42 mm (1.7 in) spread over 6 days.

January Precipitation Trends in Fos-sur-Mer

The chart displays monthly precipitation patterns in Fos-sur-Mer, 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 Fos-sur-Mer, January typically receives around 42 mm (1.7 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec422842676829132242899756
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Fos-sur-Mer

In Fos-sur-Mer in January humidity is 82%. With an average temperature of 7°C (46°F), this humidity feels like a damp chill that seeps into your bones, making travel uncomfortable and necessitating extra layers to stay warm and dry.

January Average Humidity in Fos-sur-Mer

This chart illustrates the average monthly humidity levels in Fos-sur-Mer, 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 Fos-sur-Mer is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%77%73%73%71%67%66%63%70%80%84%83%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Fos-sur-Mer

In Fos-sur-Mer 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 Fos-sur-Mer, you can visit Hourly UV Index in Fos-sur-Mer.

Maximum UV Index Levels in Fos-sur-Mer for January

The chart shows the monthly maximum UV Index (UVI) for Fos-sur-Mer 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 Fos-sur-Mer typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2457910997532
Data source: Fos-sur-Mer 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 Fos-sur-Mer Compares to Other Months

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

This table compares monthly weather conditions in Fos-sur-Mer, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (46°F)42 mm (1.7 inches)82%low
February Weather10°C (50°F)28 mm (1.1 inches)77%moderate
March Weather12°C (54°F)42 mm (1.6 inches)73%moderate
April Weather15°C (59°F)67 mm (2.7 inches)73%high
May Weather19°C (66°F)68 mm (2.7 inches)71%very high
June Weather24°C (75°F)29 mm (1.1 inches)67%very high
July Weather26°C (80°F)13 mm (0.5 inches)66%very high
August Weather26°C (79°F)22 mm (0.9 inches)63%very high
September Weather22°C (71°F)42 mm (1.7 inches)70%high
October Weather17°C (63°F)89 mm (3.5 inches)80%moderate
November Weather12°C (54°F)97 mm (3.8 inches)84%moderate
December Weather9°C (48°F)56 mm (2.2 inches)83%low

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