January Weather in Rome, United States

Last updated: June 24, 2025

In Rome, United States during January, the average temperature hovers around 7°C (45°F). Expect a range where the minimum dips to -12°C (11°F) and the maximum can reach up to 25°C (77°F). Be prepared for about 115 mm (4.5 in) of precipitation over approximately 10 days, accompanied by a high average humidity of 87%.

January Temperature in Rome

In January in Rome, the average temperature is 7°C (45°F). Maximums can reach 25°C (77°F), and minimums can be as low as -12°C (11°F). Be sure to pack layers to prepare for a wide range of temperatures while traveling!

January Weather in Rome: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Rome, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rome, January typically has an average temperature of 7°C (45°F), with highs reaching up to 25°C (77°F) and lows dropping to around -12°C (11°F).

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

January Precipitation in Rome

In Rome in January, the precipitation amount is 115 mm (4.5 in) over a span of 10 days.

January Precipitation Trends in Rome

The chart displays monthly precipitation patterns in Rome, 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 Rome, January typically receives around 115 mm (4.5 inches) of precipitation spread over approximately 10 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 Rome

In Rome in January, humidity is 87%. With an average temperature of 7°C (45°F), this humidity feels like a damp chill that seeps into your bones, making outdoor adventures somewhat uncomfortable and urging travelers to seek refuge in cozy cafes or warm indoor activities.

January Average Humidity in Rome

This chart illustrates the average monthly humidity levels in Rome, 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 Rome is approximately 87%, 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 Rome

In Rome in January, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Rome for better planning.

Maximum UV Index Levels in Rome for January

The chart shows the monthly maximum UV Index (UVI) for Rome 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 Rome typically reaches 4, which falls under the moderate exposure category.

Data source: Rome 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 Rome Compares to Other Months

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

This table compares monthly weather conditions in Rome, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	7°C (45°F)	115 mm (4.5 inches)	87%	moderate
February Weather	10°C (50°F)	179 mm (7.1 inches)	87%	high
March Weather	13°C (56°F)	148 mm (5.8 inches)	85%	very high
April Weather	17°C (62°F)	138 mm (5.4 inches)	82%	very high
May Weather	22°C (72°F)	94 mm (3.7 inches)	83%	extreme
June Weather	25°C (77°F)	120 mm (4.7 inches)	82%	extreme
July Weather	27°C (80°F)	110 mm (4.3 inches)	78%	extreme
August Weather	26°C (79°F)	137 mm (5.4 inches)	67%	extreme
September Weather	24°C (75°F)	106 mm (4.2 inches)	64%	very high
October Weather	19°C (66°F)	130 mm (5.1 inches)	74%	high
November Weather	11°C (52°F)	87 mm (3.4 inches)	87%	high
December Weather	9°C (48°F)	145 mm (5.7 inches)	88%	moderate