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December Weather in Isola, France

Last updated: August 23, 2025

In December, the average temperature in Isola, France hovers around -4°C (25°F). Expect chilly conditions with minimum lows reaching -18°C (0°F) and maximum highs of 7°C (44°F). Precipitation can be expected as well, with about 114 mm (4.5 in) falling over 11 days. Additionally, the average humidity sits at a brisk 90%, making it feel even colder!

December Temperature in Isola

In December in Isola, the average temperature is -4°C (25°F). The maximum can reach 7°C (44°F), while the minimum can drop as low as -18°C (0°F). It's advisable to prepare for chilly weather and dress warmly if you plan to travel during this time.

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

The chart illustrates December temperature patterns in Isola, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Isola, December typically has an average temperature of -4°C (25°F), with highs reaching up to 7°C (44°F) and lows dropping to around -18°C (0°F).
JanFebMarAprMayJunJulAugSepOctNovDec232831364554585851443225
Data source: Temperature data for Isola 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 Isola

In Isola in December, the total precipitation amount is 114 mm (4.5 in) spread over 11 days.

December Precipitation Trends in Isola

The chart displays monthly precipitation patterns in Isola, 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 Isola, December typically receives around 114 mm (4.5 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec5257941051691521158099123132114
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Isola

In Isola in December humidity is 90%. With an average temperature of -4°C (25°F), this humidity feels like a dense, icy blanket wrapping around you, making travel feel particularly stifling in the cold despite the sub-zero temperatures.

December Average Humidity in Isola

This chart illustrates the average monthly humidity levels in Isola, 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 Isola is approximately 90%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%87%84%83%78%75%72%63%73%89%91%90%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Isola

In Isola 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 Isola, you can visit Hourly UV Index in Isola.

Maximum UV Index Levels in Isola for December

The chart shows the monthly maximum UV Index (UVI) for Isola 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 Isola typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35799111098632
Data source: Isola 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 Isola Compares to Other Months

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

This table compares monthly weather conditions in Isola, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-5°C (24°F)52 mm (2.0 inches)91%moderate
February Weather-2°C (29°F)57 mm (2.3 inches)87%moderate
March Weather-1°C (31°F)94 mm (3.7 inches)84%high
April Weather2°C (36°F)105 mm (4.1 inches)83%very high
May Weather7°C (45°F)169 mm (6.6 inches)78%very high
June Weather12°C (54°F)152 mm (6.0 inches)75%extreme
July Weather14°C (58°F)115 mm (4.5 inches)72%very high
August Weather15°C (58°F)80 mm (3.1 inches)63%very high
September Weather10°C (51°F)99 mm (3.9 inches)73%very high
October Weather6°C (44°F)123 mm (4.8 inches)89%high
November Weather0°C (32°F)132 mm (5.2 inches)90%moderate
December Weather-4°C (25°F)114 mm (4.5 inches)90%low

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