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January Weather in Mantes-la-Jolie, France

Last updated: August 23, 2025

In January, the average temperature in Mantes-la-Jolie, France hovers around 5°C (41°F), with minimums dipping to -7°C (20°F) and maximums reaching up to 15°C (58°F). Expect 53 mm (2.1 in) of precipitation spread over approximately 10 days, and brace yourself for a notably high average humidity of 91%.

January Temperature in Mantes-la-Jolie

In January in Mantes-la-Jolie, the average temperature is 5°C (41°F). Maximums can reach 15°C (58°F), while minimums can drop as low as -7°C (20°F). Travelers should prepare for chilly conditions and dress in layers to stay comfortable while exploring this destination.

January Weather in Mantes-la-Jolie: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Mantes-la-Jolie, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mantes-la-Jolie, January typically has an average temperature of 5°C (41°F), with highs reaching up to 15°C (58°F) and lows dropping to around -7°C (20°F).
JanFebMarAprMayJunJulAugSepOctNovDec404346515764686761554643
Data source: Temperature data for Mantes-la-Jolie 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 Mantes-la-Jolie

In Mantes-la-Jolie in January, the precipitation amount is 53 mm (2.1 in) spread over a duration of 10 days.

January Precipitation Trends in Mantes-la-Jolie

The chart displays monthly precipitation patterns in Mantes-la-Jolie, 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 Mantes-la-Jolie, January typically receives around 53 mm (2.1 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec5366773778814659407867101
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Mantes-la-Jolie

In Mantes-la-Jolie in January humidity is 91%. With an average temperature of 5°C (41°F), this humidity feels like a damp chill that seeps into your bones, making traveling outdoors a rather uncomfortable experience unless you're dressed warmly and prepared for the moist air that clings to your skin.

January Average Humidity in Mantes-la-Jolie

This chart illustrates the average monthly humidity levels in Mantes-la-Jolie, 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 Mantes-la-Jolie is approximately 91%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%85%84%82%80%73%68%76%88%92%93%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Mantes-la-Jolie

In Mantes-la-Jolie 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 Mantes-la-Jolie, you can visit Hourly UV Index in Mantes-la-Jolie.

Maximum UV Index Levels in Mantes-la-Jolie for January

The chart shows the monthly maximum UV Index (UVI) for Mantes-la-Jolie 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 Mantes-la-Jolie typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec234689886421
Data source: Mantes-la-Jolie 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 Mantes-la-Jolie Compares to Other Months

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

This table compares monthly weather conditions in Mantes-la-Jolie, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)53 mm (2.1 inches)91%low
February Weather6°C (43°F)66 mm (2.6 inches)89%moderate
March Weather8°C (47°F)77 mm (3.0 inches)85%moderate
April Weather11°C (51°F)36 mm (1.4 inches)84%high
May Weather14°C (57°F)78 mm (3.1 inches)82%very high
June Weather18°C (65°F)81 mm (3.2 inches)80%very high
July Weather20°C (68°F)46 mm (1.8 inches)73%very high
August Weather19°C (67°F)59 mm (2.3 inches)68%very high
September Weather16°C (61°F)40 mm (1.6 inches)76%high
October Weather13°C (55°F)78 mm (3.1 inches)88%moderate
November Weather8°C (46°F)67 mm (2.6 inches)92%low
December Weather6°C (43°F)100 mm (4.0 inches)93%low

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