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December Weather in Portbail, France

Last updated: August 23, 2025

In December, the average temperature in Portbail, France hovers around 9°C (48°F), with minimums dipping to 1°C (35°F) and maximums reaching 14°C (57°F). This month also sees 153 mm (6.0 in) of precipitation spread over 19 days, contributing to a high average humidity of 92%. Be prepared for wet and chilly conditions as you explore this captivating locale!

December Temperature in Portbail

In December in Portbail, the average temperature is 9°C (48°F). The maximum can reach 14°C (57°F) and the minimum can be as low as 1°C (35°F). Be prepared for cool weather and pack accordingly if you plan to visit.

December Weather in Portbail: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Portbail, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Portbail, December typically has an average temperature of 9°C (48°F), with highs reaching up to 14°C (57°F) and lows dropping to around 1°C (35°F).
JanFebMarAprMayJunJulAugSepOctNovDec464648515561646462575148
Data source: Temperature data for Portbail 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 Portbail

In Portbail in December, the precipitation amount is 153 mm (6.0 in) over the course of 19 days.

December Precipitation Trends in Portbail

The chart displays monthly precipitation patterns in Portbail, 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 Portbail, December typically receives around 153 mm (6.0 inches) of precipitation spread over approximately 19 days.
JanFebMarAprMayJunJulAugSepOctNovDec838080377179547272131102153
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Portbail

In Portbail in December humidity is 92%. With an average temperature of 9°C (48°F), this humidity feels like a heavy blanket enveloping you, making outdoor exploration quite challenging due to the stickiness in the air and the constant dampness that clings to your skin.

December Average Humidity in Portbail

This chart illustrates the average monthly humidity levels in Portbail, 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 Portbail 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 Portbail

In Portbail 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 Portbail.

Maximum UV Index Levels in Portbail for December

The chart shows the monthly maximum UV Index (UVI) for Portbail 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 Portbail typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec234679886421
Data source: Portbail 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 Portbail Compares to Other Months

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

This table compares monthly weather conditions in Portbail, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather8°C (46°F)83 mm (3.3 inches)90%low
February Weather8°C (46°F)80 mm (3.1 inches)89%moderate
March Weather9°C (48°F)80 mm (3.1 inches)86%moderate
April Weather11°C (51°F)37 mm (1.5 inches)84%high
May Weather13°C (56°F)71 mm (2.8 inches)80%high
June Weather16°C (61°F)79 mm (3.1 inches)80%very high
July Weather18°C (65°F)54 mm (2.1 inches)69%very high
August Weather18°C (65°F)72 mm (2.8 inches)73%very high
September Weather17°C (62°F)72 mm (2.8 inches)79%high
October Weather14°C (58°F)131 mm (5.2 inches)89%moderate
November Weather11°C (52°F)102 mm (4.0 inches)92%low
December Weather9°C (48°F)153 mm (6.0 inches)92%low

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