nomadseason

December Weather in Guidonia Montecelio, Italy

Last updated: August 23, 2025

In Guidonia Montecelio, Italy, the average temperature in December hovers around 7°C (46°F). Expect chilly days with a minimum dropping to -4°C (24°F) and a maximum reaching up to 17°C (63°F). This month also sees significant precipitation, with an average of 153 mm (6.0 in) over 13 days. With an average humidity level of 84%, don't forget your umbrella and a warm jacket when venturing outside!

December Temperature in Guidonia Montecelio

In December, in Guidonia Montecelio, the average temperature is 7°C (46°F). Maximums can reach 17°C (63°F) and minimums can be as low as -4°C (24°F). Travelers should prepare for a mix of chilly days and slightly warmer afternoons, making layering essential for comfort.

December Weather in Guidonia Montecelio: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Guidonia Montecelio, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Guidonia Montecelio, December typically has an average temperature of 7°C (46°F), with highs reaching up to 17°C (63°F) and lows dropping to around -4°C (24°F).
JanFebMarAprMayJunJulAugSepOctNovDec424649556372777869605345
Data source: Temperature data for Guidonia Montecelio generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Guidonia Montecelio

In Guidonia Montecelio in December, the total precipitation amount is 153 mm (6.0 in) spread over 13 days.

December Precipitation Trends in Guidonia Montecelio

The chart displays monthly precipitation patterns in Guidonia Montecelio, 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 Guidonia Montecelio, December typically receives around 153 mm (6.0 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec668493809845252910896170153
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Guidonia Montecelio

In Guidonia Montecelio in December, humidity is 84%. With an average temperature of 7°C (46°F), this humidity feels like a damp chill that seeps into your bones, making outdoor exploration uncomfortable and necessitating extra layers for warmth and comfort while traveling.

December Average Humidity in Guidonia Montecelio

This chart illustrates the average monthly humidity levels in Guidonia Montecelio, 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 Guidonia Montecelio is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%76%69%70%70%61%57%53%65%75%82%84%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Guidonia Montecelio

In Guidonia Montecelio 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 Guidonia Montecelio, you can visit Hourly UV Index in Guidonia Montecelio.

Maximum UV Index Levels in Guidonia Montecelio for December

The chart shows the monthly maximum UV Index (UVI) for Guidonia Montecelio 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 Guidonia Montecelio typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec34679101098642
Data source: Guidonia Montecelio 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 Guidonia Montecelio Compares to Other Months

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

This table compares monthly weather conditions in Guidonia Montecelio, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (43°F)66 mm (2.6 inches)84%moderate
February Weather8°C (47°F)84 mm (3.3 inches)76%moderate
March Weather10°C (50°F)93 mm (3.7 inches)69%high
April Weather13°C (55°F)80 mm (3.1 inches)70%high
May Weather17°C (63°F)98 mm (3.8 inches)70%very high
June Weather22°C (72°F)45 mm (1.8 inches)61%very high
July Weather25°C (78°F)25 mm (1.0 inches)57%very high
August Weather26°C (79°F)29 mm (1.1 inches)53%very high
September Weather21°C (69°F)108 mm (4.2 inches)65%very high
October Weather16°C (61°F)96 mm (3.8 inches)75%high
November Weather12°C (53°F)170 mm (6.7 inches)81%moderate
December Weather7°C (46°F)153 mm (6.0 inches)84%low

Compare Guidonia Montecelio's Climate with Cities Worldwide