May Weather in Rome, United States

Last updated: June 24, 2025

In May, the average temperature in Rome, United States is a comfortable 13°C (55°F). However, be prepared for a range, as temperatures can dip to a chilly 1°C (34°F) or soar up to a warm 31°C (88°F). Expect about 81 mm (3.2 in) of precipitation spread across 10 days, contributing to the region's average humidity of 76%. Stay prepared for a mix of weather!

May Temperature in Rome

In May in Rome, the average temperature is 13°C (55°F), with a maximum that can reach 31°C (88°F) and a minimum that can drop to as low as 1°C (34°F). This range suggests that travelers should be prepared for both warm days and cool evenings, making layering a smart choice for your visit.

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

The chart illustrates May 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, May typically has an average temperature of 13°C (55°F), with highs reaching up to 31°C (88°F) and lows dropping to around 1°C (34°F).

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

May Precipitation in Rome

In Rome in May, the precipitation amount is 81 mm (3.2 in) over a span of 10 days.

May Precipitation Trends in Rome

The chart displays monthly precipitation patterns in Rome, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Rome, May typically receives around 81 mm (3.2 inches) of precipitation spread over approximately 10 days.

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

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Millimeters (mm) Inches (in)

May Humidity in Rome

In Rome in May humidity is 76%. With an average temperature of 13°C (55°F), this humidity feels like a damp, heavy blanket enveloping you, making it feel cooler than it actually is, which can be quite refreshing for short excursions but may also lead to discomfort during prolonged outdoor activities.

May Average Humidity in Rome

This chart illustrates the average monthly humidity levels in Rome, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Rome is approximately 76%, offering insight into how humid the weather typically is during this month.

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

May UV Index in Rome

In Rome in May, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Rome.

Maximum UV Index Levels in Rome for May

The chart shows the monthly maximum UV Index (UVI) for Rome in May, 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 May, the maximum UV index in Rome typically reaches 9, which falls under the very high exposure category.

Data source: Rome May 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 May 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 May’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 May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-6°C (22°F)	82 mm (3.2 inches)	88%	low
February Weather	-4°C (24°F)	82 mm (3.2 inches)	88%	moderate
March Weather	-1°C (31°F)	71 mm (2.8 inches)	85%	moderate
April Weather	6°C (43°F)	116 mm (4.6 inches)	81%	high
May Weather	13°C (55°F)	81 mm (3.2 inches)	76%	very high
June Weather	18°C (65°F)	68 mm (2.7 inches)	74%	very high
July Weather	21°C (70°F)	112 mm (4.4 inches)	74%	very high
August Weather	21°C (70°F)	74 mm (2.9 inches)	74%	very high
September Weather	17°C (62°F)	68 mm (2.7 inches)	77%	high
October Weather	11°C (51°F)	123 mm (4.8 inches)	82%	moderate
November Weather	3°C (37°F)	107 mm (4.2 inches)	85%	moderate
December Weather	-3°C (27°F)	109 mm (4.3 inches)	84%	low