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December Weather in Longues-sur-Mer, France

Last updated: August 23, 2025

In Longues-sur-Mer, France, the average temperature in December hovers around 8°C (46°F), with a minimum dropping to -2°C (29°F) and a maximum reaching 15°C (59°F). Expect a fair amount of precipitation, measuring 102 mm (4.0 in) over the course of 17 days, contributing to a notable average humidity level of 92%.

December Temperature in Longues-sur-Mer

In December in Longues-sur-Mer, the average temperature is 8°C (46°F), with maximums reaching 15°C (59°F) and minimums dropping as low as -2°C (29°F). This weather makes it a great time for travelers to enjoy crisp outdoor activities while dressing in layers for warmth.

December Weather in Longues-sur-Mer: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Longues-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 Longues-sur-Mer, December typically has an average temperature of 8°C (46°F), with highs reaching up to 15°C (59°F) and lows dropping to around -2°C (29°F).
JanFebMarAprMayJunJulAugSepOctNovDec434547515662666561564846
Data source: Temperature data for Longues-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.

December Precipitation in Longues-sur-Mer

In Longues-sur-Mer in December, the precipitation amount is 102 mm (4.0 in) spread over 17 days.

December Precipitation Trends in Longues-sur-Mer

The chart displays monthly precipitation patterns in Longues-sur-Mer, 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 Longues-sur-Mer, December typically receives around 102 mm (4.0 inches) of precipitation spread over approximately 17 days.
JanFebMarAprMayJunJulAugSepOctNovDec5564643969905164508673103
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Longues-sur-Mer

In Longues-sur-Mer in December, humidity is 92%. With an average temperature of 8°C (46°F), this humidity feels like a damp chill that settles deep into your bones, making outdoor adventures uncomfortable and necessitating extra layers to stay warm while you explore.

December Average Humidity in Longues-sur-Mer

This chart illustrates the average monthly humidity levels in Longues-sur-Mer, 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 Longues-sur-Mer is approximately 92%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%89%86%85%80%80%69%73%79%89%92%92%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Longues-sur-Mer

In Longues-sur-Mer 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 Longues-sur-Mer.

Maximum UV Index Levels in Longues-sur-Mer for December

The chart shows the monthly maximum UV Index (UVI) for Longues-sur-Mer 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 Longues-sur-Mer typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec234689886421
Data source: Longues-sur-Mer 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 Longues-sur-Mer Compares to Other Months

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

This table compares monthly weather conditions in Longues-sur-Mer, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (43°F)55 mm (2.2 inches)90%low
February Weather7°C (45°F)64 mm (2.5 inches)89%moderate
March Weather8°C (48°F)64 mm (2.5 inches)86%moderate
April Weather10°C (51°F)39 mm (1.5 inches)84%high
May Weather13°C (56°F)69 mm (2.7 inches)80%very high
June Weather17°C (63°F)90 mm (3.5 inches)80%very high
July Weather19°C (66°F)51 mm (2.0 inches)69%very high
August Weather18°C (65°F)64 mm (2.5 inches)73%very high
September Weather16°C (61°F)50 mm (1.9 inches)79%high
October Weather13°C (56°F)86 mm (3.4 inches)89%moderate
November Weather9°C (49°F)73 mm (2.9 inches)92%low
December Weather8°C (46°F)102 mm (4.0 inches)92%low

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