May Weather in Rome, United States

Last updated: June 24, 2025

The average temperature in Rome, United States during May is a pleasant 17°C (63°F). However, expect a range with minimums dipping to 0°C (32°F) and maximums soaring to 35°C (95°F). Throughout the month, precipitation totals around 162 mm (6.4 in) over 16 days, contributing to a relatively high average humidity of 79%.

May Temperature in Rome

In May in Rome, the average temperature is 17°C (63°F). Maximum temperatures can reach 35°C (95°F), while minimums can drop to as low as 0°C (32°F). This variability makes it essential to pack a range of clothing options for your travels.

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 17°C (63°F), with highs reaching up to 35°C (95°F) and lows dropping to around 0°C (32°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 162 mm (6.4 in) spread over 16 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 162 mm (6.4 inches) of precipitation spread over approximately 16 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 79%. With an average temperature of 17°C (63°F), this humidity feels like a warm, muggy embrace, making outdoor activities less comfortable and prompting travelers to seek shaded areas or cool refreshments more frequently.

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 79%, 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	-3°C (26°F)	58 mm (2.3 inches)	82%	moderate
February Weather	-2°C (28°F)	65 mm (2.6 inches)	83%	moderate
March Weather	5°C (41°F)	100 mm (3.9 inches)	84%	high
April Weather	10°C (50°F)	114 mm (4.5 inches)	85%	very high
May Weather	17°C (63°F)	162 mm (6.4 inches)	79%	very high
June Weather	23°C (74°F)	158 mm (6.2 inches)	82%	extreme
July Weather	25°C (77°F)	104 mm (4.1 inches)	80%	very high
August Weather	23°C (74°F)	70 mm (2.8 inches)	81%	very high
September Weather	21°C (69°F)	79 mm (3.1 inches)	80%	very high
October Weather	13°C (56°F)	135 mm (5.3 inches)	82%	high
November Weather	4°C (40°F)	55 mm (2.2 inches)	88%	moderate
December Weather	1°C (34°F)	52 mm (2.1 inches)	84%	low