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December Weather in Jarnac, France

Last updated: August 23, 2025

In December, the average temperature in Jarnac, France hovers around 8°C (46°F). However, temperatures can swing from a chilly -6°C (22°F) to a pleasantly mild 17°C (62°F). Expect around 123 mm (4.9 in) of precipitation over 17 days, accompanied by an average humidity level of 85%. Stay prepared for a mix of weather!

December Temperature in Jarnac

In December in Jarnac, the average temperature is 8°C (46°F). The maximum can reach 17°C (62°F), while the minimum can drop as low as -6°C (22°F). It's advisable to pack layers and be prepared for a wide range of temperatures when traveling during this time.

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

The chart illustrates December temperature patterns in Jarnac, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Jarnac, December typically has an average temperature of 8°C (46°F), with highs reaching up to 17°C (62°F) and lows dropping to around -6°C (22°F).
JanFebMarAprMayJunJulAugSepOctNovDec434650556167717065584846
Data source: Temperature data for Jarnac 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 Jarnac

In Jarnac in December, the precipitation amount is 123 mm (4.9 in) over the course of 17 days.

December Precipitation Trends in Jarnac

The chart displays monthly precipitation patterns in Jarnac, 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 Jarnac, December typically receives around 123 mm (4.9 inches) of precipitation spread over approximately 17 days.
JanFebMarAprMayJunJulAugSepOctNovDec6668835491823929488485123
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Jarnac

In Jarnac in December humidity is 85%. With an average temperature of 8°C (46°F), this humidity feels like a cold, damp embrace that can leave travelers feeling chilled and uncomfortable, making outdoor exploration less appealing and encouraging the search for cozy indoor activities instead.

December Average Humidity in Jarnac

This chart illustrates the average monthly humidity levels in Jarnac, 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 Jarnac is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%83%82%82%82%80%76%73%76%82%83%85%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Jarnac

In Jarnac in December, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Jarnac, you can visit Hourly UV Index in Jarnac.

Maximum UV Index Levels in Jarnac for December

The chart shows the monthly maximum UV Index (UVI) for Jarnac 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 Jarnac typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235789996532
Data source: Jarnac 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 Jarnac Compares to Other Months

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

This table compares monthly weather conditions in Jarnac, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (43°F)66 mm (2.6 inches)85%low
February Weather8°C (47°F)68 mm (2.7 inches)83%moderate
March Weather10°C (50°F)83 mm (3.3 inches)82%moderate
April Weather13°C (55°F)54 mm (2.1 inches)82%high
May Weather16°C (61°F)91 mm (3.6 inches)82%very high
June Weather20°C (68°F)82 mm (3.2 inches)80%very high
July Weather22°C (71°F)39 mm (1.5 inches)76%very high
August Weather21°C (70°F)29 mm (1.1 inches)73%very high
September Weather19°C (66°F)48 mm (1.9 inches)76%high
October Weather14°C (58°F)84 mm (3.3 inches)81%moderate
November Weather9°C (49°F)85 mm (3.3 inches)83%moderate
December Weather8°C (46°F)123 mm (4.9 inches)85%low

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