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December Weather in Le Portel, France

Last updated: August 23, 2025

In Le Portel, France, the average temperature in December hovers around 8°C (46°F). Expect chilly days, with minimums dipping to -1°C (31°F) and maximums reaching 14°C (57°F). Rainfall can be significant, with an average precipitation of 143 mm (5.6 in) spread over 19 days, resulting in a notably high average humidity of 92%. Be prepared for a damp and cool atmosphere!

December Temperature in Le Portel

In December in Le Portel, the average temperature is 8°C (46°F), with maximums reaching 14°C (57°F) and minimums dropping as low as -1°C (31°F). It's a good idea to pack layers and prepare for varying weather conditions during your travels.

December Weather in Le Portel: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Le Portel, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Le Portel, December typically has an average temperature of 8°C (46°F), with highs reaching up to 14°C (57°F) and lows dropping to around -1°C (31°F).
JanFebMarAprMayJunJulAugSepOctNovDec434446495460646461564946
Data source: Temperature data for Le Portel 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 Le Portel

In Le Portel in December, the total precipitation amount is 143 mm (5.6 in) spread over 19 days.

December Precipitation Trends in Le Portel

The chart displays monthly precipitation patterns in Le Portel, 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 Le Portel, December typically receives around 143 mm (5.6 inches) of precipitation spread over approximately 19 days.
JanFebMarAprMayJunJulAugSepOctNovDec817473316167497467123104143
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Le Portel

In Le Portel 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 Le Portel

This chart illustrates the average monthly humidity levels in Le Portel, 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 Le Portel is approximately 92%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%86%85%82%81%76%73%80%89%92%92%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Le Portel

In Le Portel 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 Le Portel.

Maximum UV Index Levels in Le Portel for December

The chart shows the monthly maximum UV Index (UVI) for Le Portel 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 Le Portel typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec224578875421
Data source: Le Portel 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 Le Portel Compares to Other Months

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

This table compares monthly weather conditions in Le Portel, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (43°F)81 mm (3.2 inches)91%low
February Weather7°C (44°F)74 mm (2.9 inches)89%low
March Weather8°C (46°F)73 mm (2.9 inches)86%moderate
April Weather10°C (50°F)31 mm (1.2 inches)85%moderate
May Weather12°C (54°F)61 mm (2.4 inches)82%high
June Weather16°C (61°F)67 mm (2.6 inches)81%very high
July Weather18°C (64°F)49 mm (1.9 inches)76%very high
August Weather18°C (65°F)74 mm (2.9 inches)73%high
September Weather16°C (61°F)67 mm (2.7 inches)80%moderate
October Weather13°C (57°F)123 mm (4.8 inches)89%moderate
November Weather10°C (49°F)104 mm (4.1 inches)92%low
December Weather8°C (46°F)143 mm (5.6 inches)92%low

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