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December Weather in Grans, France

Last updated: August 23, 2025

In December, the average temperature in Grans, France is a cool 9°C (48°F), with a minimum dipping to -2°C (28°F) and a maximum soaring to 20°C (68°F). Expect a total precipitation of 56 mm (2.2 in) over approximately 9 days, and be prepared for high humidity, averaging around 83%.

December Temperature in Grans

In December in Grans, the average temperature is 9°C (48°F). Maximum temperatures can reach 20°C (68°F), while minimums can drop as low as -2°C (28°F). Be sure to pack layers to comfortably enjoy the varying weather during your travels!

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

The chart illustrates December temperature patterns in Grans, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Grans, December typically has an average temperature of 9°C (48°F), with highs reaching up to 20°C (68°F) and lows dropping to around -2°C (28°F).
JanFebMarAprMayJunJulAugSepOctNovDec455054596675797971635448
Data source: Temperature data for Grans 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 Grans

In Grans in December, the precipitation amount is 56 mm (2.2 in) over a period of 9 days.

December Precipitation Trends in Grans

The chart displays monthly precipitation patterns in Grans, 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 Grans, December typically receives around 56 mm (2.2 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec422842676829132242899756
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Grans

In Grans in December humidity is 83%. With an average temperature of 9°C (48°F), this humidity feels like an enveloping blanket, making outdoor activities quite uncomfortable and encouraging travelers to seek shelter or shade frequently.

December Average Humidity in Grans

This chart illustrates the average monthly humidity levels in Grans, 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 Grans is approximately 83%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%77%73%73%71%67%66%63%70%80%84%83%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Grans

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

Maximum UV Index Levels in Grans for December

The chart shows the monthly maximum UV Index (UVI) for Grans 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 Grans typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2457910997532
Data source: Grans 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 Grans Compares to Other Months

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

This table compares monthly weather conditions in Grans, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (46°F)42 mm (1.7 inches)82%low
February Weather10°C (50°F)28 mm (1.1 inches)77%moderate
March Weather12°C (54°F)42 mm (1.6 inches)73%moderate
April Weather15°C (59°F)67 mm (2.7 inches)73%high
May Weather19°C (66°F)68 mm (2.7 inches)71%very high
June Weather24°C (75°F)29 mm (1.1 inches)67%very high
July Weather26°C (80°F)13 mm (0.5 inches)66%very high
August Weather26°C (79°F)22 mm (0.9 inches)63%very high
September Weather22°C (71°F)42 mm (1.7 inches)70%high
October Weather17°C (63°F)89 mm (3.5 inches)80%moderate
November Weather12°C (54°F)97 mm (3.8 inches)84%moderate
December Weather9°C (48°F)56 mm (2.2 inches)83%low

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