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December Weather in Grottole, Italy

Last updated: August 23, 2025

In December, the average temperature in Grottole, Italy hovers around 9°C (48°F), with temperatures ranging from a chilly -1°C (30°F) to a pleasant 18°C (64°F). Expect 47 mm (1.8 in) of precipitation spread over 8 days, contributing to an average humidity of 82%. Be prepared for a combination of cool, damp days that highlight the unique charm of this season!

December Temperature in Grottole

In December in Grottole, the average temperature is 9°C (48°F), with maximums reaching 18°C (64°F) and minimums dropping as low as -1°C (30°F). This range makes it a perfect time for travelers to enjoy outdoor activities while being prepared for cooler evenings.

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

The chart illustrates December temperature patterns in Grottole, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Grottole, December typically has an average temperature of 9°C (48°F), with highs reaching up to 18°C (64°F) and lows dropping to around -1°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec444850566575808172635548
Data source: Temperature data for Grottole 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 Grottole

In Grottole in December, the precipitation amount is 47 mm (1.8 in) over the course of 8 days.

December Precipitation Trends in Grottole

The chart displays monthly precipitation patterns in Grottole, 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 Grottole, December typically receives around 47 mm (1.8 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec445353524453162833479847
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Grottole

In Grottole in December, humidity is 82%. With an average temperature of 9°C (48°F), this humidity feels like a damp chill that seeps into your bones, making it essential to dress in layers for your travels while keeping an umbrella handy for unexpected drizzles.

December Average Humidity in Grottole

This chart illustrates the average monthly humidity levels in Grottole, 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 Grottole is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%74%70%71%71%65%61%56%66%74%80%82%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Grottole

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

Maximum UV Index Levels in Grottole for December

The chart shows the monthly maximum UV Index (UVI) for Grottole 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 Grottole typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34689101098642
Data source: Grottole 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 Grottole Compares to Other Months

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

This table compares monthly weather conditions in Grottole, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (44°F)44 mm (1.7 inches)82%moderate
February Weather9°C (48°F)53 mm (2.1 inches)74%moderate
March Weather10°C (50°F)53 mm (2.1 inches)70%high
April Weather14°C (57°F)52 mm (2.1 inches)71%very high
May Weather18°C (65°F)44 mm (1.7 inches)71%very high
June Weather24°C (75°F)52 mm (2.1 inches)65%very high
July Weather27°C (80°F)16 mm (0.6 inches)61%very high
August Weather27°C (81°F)28 mm (1.1 inches)56%very high
September Weather22°C (72°F)33 mm (1.3 inches)66%very high
October Weather17°C (63°F)47 mm (1.8 inches)74%high
November Weather13°C (56°F)98 mm (3.9 inches)80%moderate
December Weather9°C (48°F)47 mm (1.8 inches)82%low

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