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December Weather in Harly, France

Last updated: August 23, 2025

In December, the average temperature in Harly, France is a brisk 6°C (42°F), with temperatures ranging from a chilly -3°C (26°F) to a mild 15°C (59°F). Expect 106 mm (4.2 in) of precipitation spread over 16 days, contributing to a notably high average humidity of 93%. Prepare for an undeniably crisp and damp atmosphere!

December Temperature in Harly

In December in Harly, the average temperature is 6°C (42°F), with maximums reaching 15°C (59°F) and minimums dropping to as low as -3°C (26°F). Be prepared for a chilly climate and pack accordingly to ensure a comfortable travel experience.

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

The chart illustrates December temperature patterns in Harly, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Harly, December typically has an average temperature of 6°C (42°F), with highs reaching up to 15°C (59°F) and lows dropping to around -3°C (26°F).
JanFebMarAprMayJunJulAugSepOctNovDec394246515765676761544542
Data source: Temperature data for Harly 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 Harly

In Harly in December, the total precipitation amount is 106 mm (4.2 in) spread over 16 days.

December Precipitation Trends in Harly

The chart displays monthly precipitation patterns in Harly, 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 Harly, December typically receives around 106 mm (4.2 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec6573743662565274498167106
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Harly

In Harly in December, humidity is 93%. With an average temperature of 6°C (42°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities uncomfortable and necessitating extra layers to stay warm and dry while traveling.

December Average Humidity in Harly

This chart illustrates the average monthly humidity levels in Harly, 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 Harly is approximately 93%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%86%84%83%83%80%76%81%88%92%93%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Harly

In Harly 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 Harly.

Maximum UV Index Levels in Harly for December

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

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

This table compares monthly weather conditions in Harly, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (40°F)65 mm (2.6 inches)91%low
February Weather6°C (42°F)73 mm (2.9 inches)89%moderate
March Weather8°C (46°F)74 mm (2.9 inches)86%moderate
April Weather10°C (51°F)36 mm (1.4 inches)84%high
May Weather14°C (57°F)61 mm (2.4 inches)82%very high
June Weather18°C (65°F)56 mm (2.2 inches)82%very high
July Weather20°C (68°F)52 mm (2.1 inches)80%very high
August Weather19°C (67°F)74 mm (2.9 inches)76%very high
September Weather16°C (61°F)49 mm (1.9 inches)81%high
October Weather12°C (54°F)81 mm (3.2 inches)88%moderate
November Weather7°C (46°F)67 mm (2.6 inches)92%low
December Weather6°C (42°F)106 mm (4.2 inches)93%low

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