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December Weather in Harnes, France

Last updated: August 23, 2025

In December, the average temperature in Harnes, France hovers around 6°C (43°F). Expect a chilly minimum of -4°C (26°F) and a mild maximum reaching 15°C (59°F). During this month, you can anticipate 92 mm (3.6 in) of precipitation spread over 16 days, with humidity levels peaking at a high 92%. Stay cozy and prepared for the damp weather!

December Temperature in Harnes

In December in Harnes, the average temperature is 6°C (43°F). Maximums can reach 15°C (59°F), while minimums can drop as low as -4°C (26°F). Be prepared for a range of weather conditions during your travels!

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

The chart illustrates December temperature patterns in Harnes, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Harnes, December typically has an average temperature of 6°C (43°F), with highs reaching up to 15°C (59°F) and lows dropping to around -4°C (26°F).
JanFebMarAprMayJunJulAugSepOctNovDec404246505664666660554643
Data source: Temperature data for Harnes 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 Harnes

In Harnes in December, the total precipitation amount reaches 92 mm (3.6 in) spread over 16 days.

December Precipitation Trends in Harnes

The chart displays monthly precipitation patterns in Harnes, 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 Harnes, December typically receives around 92 mm (3.6 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec605962376164517549816092
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Harnes

In Harnes in December humidity is 92%. With an average temperature of 6°C (43°F), this humidity feels like a damp chill that seeps through your clothes, making outdoor activities uncomfortable and requiring extra layers for warmth while navigating the slick streets.

December Average Humidity in Harnes

This chart illustrates the average monthly humidity levels in Harnes, 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 Harnes is approximately 92%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%87%85%82%82%80%76%82%89%92%92%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Harnes

In Harnes 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 Harnes.

Maximum UV Index Levels in Harnes for December

The chart shows the monthly maximum UV Index (UVI) for Harnes 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 Harnes typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec224678875421
Data source: Harnes 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 Harnes Compares to Other Months

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

This table compares monthly weather conditions in Harnes, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (40°F)60 mm (2.3 inches)91%low
February Weather6°C (43°F)59 mm (2.3 inches)89%low
March Weather8°C (46°F)62 mm (2.4 inches)87%moderate
April Weather10°C (51°F)37 mm (1.4 inches)85%high
May Weather14°C (57°F)61 mm (2.4 inches)82%high
June Weather18°C (64°F)63 mm (2.5 inches)82%very high
July Weather19°C (66°F)51 mm (2.0 inches)80%very high
August Weather19°C (66°F)75 mm (3.0 inches)76%high
September Weather16°C (61°F)49 mm (1.9 inches)82%moderate
October Weather13°C (55°F)81 mm (3.2 inches)89%moderate
November Weather8°C (46°F)60 mm (2.3 inches)92%low
December Weather6°C (43°F)92 mm (3.6 inches)92%low

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