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December Weather in Mont-Saint-Aignan, France

Last updated: August 23, 2025

In December, the average temperature in Mont-Saint-Aignan, France hovers around 6°C (44°F), with a chilly minimum of -4°C (26°F) and a mild maximum of 15°C (59°F). Expect frequent rainfall, with 116 mm (4.6 in) spread across 18 days, contributing to a high average humidity of 93%. Prepare for cozy, rain-soaked days!

December Temperature in Mont-Saint-Aignan

In December in Mont-Saint-Aignan, the average temperature is 6°C (44°F). The maximum can reach 15°C (59°F), and the minimum can be as low as -4°C (26°F). Be prepared for a mix of mild and chilly weather, so pack accordingly for your trip.

December Weather in Mont-Saint-Aignan: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Mont-Saint-Aignan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mont-Saint-Aignan, December typically has an average temperature of 6°C (44°F), with highs reaching up to 15°C (59°F) and lows dropping to around -4°C (26°F).
JanFebMarAprMayJunJulAugSepOctNovDec414346505663666560544643
Data source: Temperature data for Mont-Saint-Aignan 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.

December Precipitation in Mont-Saint-Aignan

In Mont-Saint-Aignan in December, the precipitation amount is 116 mm (4.6 in) over the course of 18 days.

December Precipitation Trends in Mont-Saint-Aignan

The chart displays monthly precipitation patterns in Mont-Saint-Aignan, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Mont-Saint-Aignan, December typically receives around 116 mm (4.6 inches) of precipitation spread over approximately 18 days.
JanFebMarAprMayJunJulAugSepOctNovDec6469783893785274528282116
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Mont-Saint-Aignan

In Mont-Saint-Aignan in December, humidity is 93%. With an average temperature of 6°C (44°F), this humidity feels like walking through a heavy fog, making travel feel damp and chilly, and leaving you craving warmth and comfort.

December Average Humidity in Mont-Saint-Aignan

This chart illustrates the average monthly humidity levels in Mont-Saint-Aignan, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Mont-Saint-Aignan is approximately 93%, 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 December generated using information from the Copernicus Climate Change Service.

December UV Index in Mont-Saint-Aignan

In Mont-Saint-Aignan in December, the maximum UV index is 1, which corresponds to a low Exposure Category. This means you have a time to burn of 45 minutes. For more details, you can check the Hourly UV Index in Mont-Saint-Aignan.

Maximum UV Index Levels in Mont-Saint-Aignan for December

The chart shows the monthly maximum UV Index (UVI) for Mont-Saint-Aignan in December, 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 December, the maximum UV index in Mont-Saint-Aignan typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec234689886421
Data source: Mont-Saint-Aignan December 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 December Weather in Mont-Saint-Aignan Compares to Other Months

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

This table compares monthly weather conditions in Mont-Saint-Aignan, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)64 mm (2.5 inches)91%low
February Weather6°C (43°F)69 mm (2.7 inches)89%moderate
March Weather8°C (46°F)78 mm (3.1 inches)85%moderate
April Weather10°C (51°F)38 mm (1.5 inches)84%high
May Weather13°C (56°F)93 mm (3.6 inches)82%very high
June Weather17°C (63°F)78 mm (3.1 inches)80%very high
July Weather19°C (66°F)52 mm (2.0 inches)73%very high
August Weather18°C (65°F)74 mm (2.9 inches)68%very high
September Weather16°C (60°F)52 mm (2.1 inches)76%high
October Weather12°C (54°F)82 mm (3.2 inches)88%moderate
November Weather8°C (46°F)81 mm (3.2 inches)92%low
December Weather6°C (44°F)116 mm (4.6 inches)93%low

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