December Weather in Ploumilliau, France

Last updated: August 23, 2025

In December, the average temperature in Ploumilliau, France hovers around 10°C (50°F), with nighttime lows dipping to a comfortable 3°C (38°F) and daytime highs reaching up to 14°C (57°F). Expect a total precipitation of 167 mm (6.6 in) spread over approximately 21 days, accompanied by a high average humidity of 90%, creating a distinctly fresh and damp atmosphere.

December Temperature in Ploumilliau

In December in Ploumilliau, the average temperature is 10°C (50°F). The maximum can reach 14°C (57°F), while the minimum can drop as low as 3°C (38°F). It's a great time to visit Ploumilliau if you enjoy cool, crisp weather and want to explore without the summer crowds.

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

The chart illustrates December temperature patterns in Ploumilliau, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ploumilliau, December typically has an average temperature of 10°C (50°F), with highs reaching up to 14°C (57°F) and lows dropping to around 3°C (38°F).
JanFebMarAprMayJunJulAugSepOctNovDec474748505459626261575249
Data source: Temperature data for Ploumilliau 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 Ploumilliau

In Ploumilliau in December, the precipitation amount is 167 mm (6.6 in) over the course of 21 days.

December Precipitation Trends in Ploumilliau

The chart displays monthly precipitation patterns in Ploumilliau, 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 Ploumilliau, December typically receives around 167 mm (6.6 inches) of precipitation spread over approximately 21 days.
JanFebMarAprMayJunJulAugSepOctNovDec979678506875444757142109167
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Ploumilliau

In Ploumilliau in December humidity is 90%. With an average temperature of 10°C (50°F), this humidity feels like a chilly, damp blanket enveloping you, making traveling uncomfortable as the cool air mixed with high moisture can lead to persistent chilliness and a constant sense of being wet, even while walking around.

December Average Humidity in Ploumilliau

This chart illustrates the average monthly humidity levels in Ploumilliau, 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 Ploumilliau is approximately 90%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%88%85%84%81%77%63%71%76%89%90%90%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Ploumilliau

In Ploumilliau 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 Ploumilliau.

Maximum UV Index Levels in Ploumilliau for December

The chart shows the monthly maximum UV Index (UVI) for Ploumilliau 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 Ploumilliau typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689986421
Data source: Ploumilliau 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 Ploumilliau Compares to Other Months

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

This table compares monthly weather conditions in Ploumilliau, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather8°C (47°F)97 mm (3.8 inches)89%low
February Weather8°C (48°F)96 mm (3.8 inches)88%moderate
March Weather9°C (49°F)78 mm (3.1 inches)85%moderate
April Weather10°C (51°F)50 mm (2.0 inches)84%high
May Weather12°C (55°F)68 mm (2.7 inches)81%very high
June Weather15°C (59°F)75 mm (2.9 inches)77%very high
July Weather17°C (62°F)44 mm (1.7 inches)63%very high
August Weather17°C (63°F)47 mm (1.9 inches)71%very high
September Weather16°C (61°F)57 mm (2.3 inches)76%high
October Weather14°C (57°F)142 mm (5.6 inches)89%moderate
November Weather11°C (52°F)109 mm (4.3 inches)90%low
December Weather10°C (50°F)167 mm (6.6 inches)90%low

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