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December Weather in Certosa, Italy

Last updated: August 23, 2025

In December, the average temperature in Certosa, Italy hovers around -8°C (18°F). Expect a dramatic range, with minimum temperatures plunging to -27°C (-17°F) and peaking at 4°C (40°F). During this month, 114 mm (4.5 in) of precipitation falls over 14 days, contributing to a notably high average humidity of 90%.

December Temperature in Certosa

In December in Certosa, the average temperature is -8°C (18°F), with maximums reaching 4°C (40°F) and minimums dipping as low as -27°C (-17°F). It's advisable to prepare for extremely cold weather if you're planning to travel during this time.

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

The chart illustrates December temperature patterns in Certosa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Certosa, December typically has an average temperature of -8°C (18°F), with highs reaching up to 4°C (40°F) and lows dropping to around -27°C (-17°F).
JanFebMarAprMayJunJulAugSepOctNovDec152025334050525245372617
Data source: Temperature data for Certosa 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 Certosa

In Certosa in December, the total precipitation amount is 114 mm (4.5 in) over the course of 14 days.

December Precipitation Trends in Certosa

The chart displays monthly precipitation patterns in Certosa, 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 Certosa, December typically receives around 114 mm (4.5 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec63537291148150202228131121123114
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Certosa

In Certosa in December, humidity is 90%. With an average temperature of -8°C (18°F), this humidity feels like an icy fog wrapping around you, making every breath sharp and crisp, and requiring careful planning for travel to avoid the chill while navigating the damp air.

December Average Humidity in Certosa

This chart illustrates the average monthly humidity levels in Certosa, 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 Certosa is approximately 90%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec93%89%86%83%78%79%82%80%83%90%89%90%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Certosa

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

Maximum UV Index Levels in Certosa for December

The chart shows the monthly maximum UV Index (UVI) for Certosa 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 Certosa typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec347910111198632
Data source: Certosa 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 Certosa Compares to Other Months

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

This table compares monthly weather conditions in Certosa, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-10°C (15°F)63 mm (2.5 inches)93%moderate
February Weather-6°C (21°F)53 mm (2.1 inches)89%moderate
March Weather-4°C (25°F)72 mm (2.8 inches)86%high
April Weather0°C (33°F)91 mm (3.6 inches)83%very high
May Weather5°C (40°F)148 mm (5.8 inches)78%very high
June Weather10°C (51°F)150 mm (5.9 inches)79%extreme
July Weather11°C (53°F)202 mm (7.9 inches)82%extreme
August Weather11°C (52°F)228 mm (9.0 inches)80%very high
September Weather7°C (46°F)131 mm (5.2 inches)83%very high
October Weather3°C (38°F)121 mm (4.8 inches)90%high
November Weather-3°C (26°F)123 mm (4.9 inches)89%moderate
December Weather-8°C (18°F)114 mm (4.5 inches)90%low

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