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December Weather in Grimaldi, Italy

Last updated: August 23, 2025

In December, the average temperature in Grimaldi, Italy hovers around 8°C (46°F). Expect minimums dipping to -2°C (29°F) and maximums reaching up to 18°C (64°F). Prepare for some wet weather, with an average precipitation of 116 mm (4.6 in) spread over 14 days, and an average humidity of 78%.

December Temperature in Grimaldi

In December in Grimaldi, the average temperature is 8°C (46°F). Maximums can reach 18°C (64°F), and minimums can drop as low as -2°C (29°F). It's advisable to pack layers to stay comfortable while exploring the diverse weather conditions.

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

The chart illustrates December temperature patterns in Grimaldi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Grimaldi, December typically has an average temperature of 8°C (46°F), with highs reaching up to 18°C (64°F) and lows dropping to around -2°C (29°F).
JanFebMarAprMayJunJulAugSepOctNovDec424547525967727367595446
Data source: Temperature data for Grimaldi 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 Grimaldi

In Grimaldi in December, the total precipitation amount is 116 mm (4.6 in) spread over a duration of 14 days.

December Precipitation Trends in Grimaldi

The chart displays monthly precipitation patterns in Grimaldi, 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 Grimaldi, December typically receives around 116 mm (4.6 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec869010076576432648085167117
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Grimaldi

In Grimaldi in December, humidity is 78%. With an average temperature of 8°C (46°F), this humidity feels like a chilly dampness that clings to your skin, making outdoor activities a bit uncomfortable and prompting you to dress in layers to stay warm while exploring.

December Average Humidity in Grimaldi

This chart illustrates the average monthly humidity levels in Grimaldi, 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 Grimaldi is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec78%72%70%73%72%67%64%61%68%73%77%78%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Grimaldi

In Grimaldi in December, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Grimaldi, you can check the information here.

Maximum UV Index Levels in Grimaldi for December

The chart shows the monthly maximum UV Index (UVI) for Grimaldi 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 Grimaldi typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356891010108643
Data source: Grimaldi 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 Grimaldi Compares to Other Months

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

This table compares monthly weather conditions in Grimaldi, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (43°F)86 mm (3.4 inches)78%moderate
February Weather7°C (45°F)90 mm (3.6 inches)71%moderate
March Weather8°C (47°F)99 mm (3.9 inches)70%high
April Weather11°C (53°F)76 mm (3.0 inches)73%very high
May Weather15°C (59°F)56 mm (2.2 inches)72%very high
June Weather19°C (67°F)64 mm (2.5 inches)67%very high
July Weather22°C (72°F)32 mm (1.3 inches)64%very high
August Weather23°C (73°F)64 mm (2.5 inches)61%very high
September Weather19°C (67°F)80 mm (3.2 inches)68%very high
October Weather15°C (60°F)85 mm (3.3 inches)73%high
November Weather12°C (54°F)167 mm (6.6 inches)77%moderate
December Weather8°C (46°F)116 mm (4.6 inches)78%moderate

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