January Weather in Guidonia Montecelio, Italy

Last updated: August 23, 2025

In January, the average temperature in Guidonia Montecelio, Italy hovers around 6°C (43°F), with a minimum dropping to a chilly -6°C (21°F) and a maximum reaching a pleasant 18°C (65°F). Expect 66 mm (2.6 in) of precipitation spread over 8 days, contributing to an average humidity of 84%.

January Temperature in Guidonia Montecelio

In January in Guidonia Montecelio, the average temperature is 6°C (43°F), with maximums reaching 18°C (65°F) and minimums dropping as low as -6°C (21°F). It's advisable to pack layers and prepare for a mix of chilly and mild weather during your travels.

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

The chart illustrates January 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, January typically has an average temperature of 6°C (43°F), with highs reaching up to 18°C (65°F) and lows dropping to around -6°C (21°F).

Data source: Temperature data for Guidonia Montecelio generated using information from the Copernicus Climate Change Service.

January Precipitation in Guidonia Montecelio

In Guidonia Montecelio in January, the total precipitation amount is 66 mm (2.6 in) over the course of 8 days.

January Precipitation Trends in Guidonia Montecelio

The chart displays monthly precipitation patterns in Guidonia Montecelio, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Guidonia Montecelio, January typically receives around 66 mm (2.6 inches) of precipitation spread over approximately 8 days.

Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

January Humidity in Guidonia Montecelio

In Guidonia Montecelio in January, humidity is 84%. With an average temperature of 6°C (43°F), this humidity feels like a damp chill that penetrates your clothing, making outdoor excursions uncomfortable and prompting travelers to seek refuge indoors or find warm, sheltered spots to enjoy their surroundings.

January Average Humidity in Guidonia Montecelio

This chart illustrates the average monthly humidity levels in Guidonia Montecelio, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Guidonia Montecelio is approximately 84%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Guidonia Montecelio

In Guidonia Montecelio in January, 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 Guidonia Montecelio, you can check the information here.

Maximum UV Index Levels in Guidonia Montecelio for January

The chart shows the monthly maximum UV Index (UVI) for Guidonia Montecelio in January, 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 January, the maximum UV index in Guidonia Montecelio typically reaches 3, which falls under the moderate exposure category.

Data source: Guidonia Montecelio January 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 January 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 January’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 January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	6°C (43°F)	66 mm (2.6 inches)	84%	moderate
February Weather	8°C (47°F)	84 mm (3.3 inches)	76%	moderate
March Weather	10°C (50°F)	93 mm (3.7 inches)	69%	high
April Weather	13°C (55°F)	80 mm (3.1 inches)	70%	high
May Weather	17°C (63°F)	98 mm (3.8 inches)	70%	very high
June Weather	22°C (72°F)	45 mm (1.8 inches)	61%	very high
July Weather	25°C (78°F)	25 mm (1.0 inches)	57%	very high
August Weather	26°C (79°F)	29 mm (1.1 inches)	53%	very high
September Weather	21°C (69°F)	108 mm (4.2 inches)	65%	very high
October Weather	16°C (61°F)	96 mm (3.8 inches)	75%	high
November Weather	12°C (53°F)	170 mm (6.7 inches)	81%	moderate
December Weather	7°C (46°F)	153 mm (6.0 inches)	84%	low