May Weather in Florence, United States

Last updated: June 24, 2025

In May, the average temperature in Florence, United States hovers around 13°C (55°F). Expect a range between a chilly -6°C (21°F) and a warm 31°C (87°F). During this month, 64 mm (2.5 in) of precipitation can be anticipated over approximately 13 days, contributing to an average humidity of 66%. Stay prepared for diverse weather conditions in this vibrant locale!

May Temperature in Florence

In May in Florence, the average temperature is 13°C (55°F). The maximum can reach 31°C (87°F), while the minimum can drop as low as -6°C (21°F). Travelers should be prepared for a wide range of temperatures, ensuring they pack accordingly to enjoy their visit.

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

The chart illustrates May temperature patterns in Florence, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Florence, May typically has an average temperature of 13°C (55°F), with highs reaching up to 31°C (87°F) and lows dropping to around -6°C (21°F).

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

May Precipitation in Florence

In Florence in May, the precipitation amount is 64 mm (2.5 in) spread over 13 days.

May Precipitation Trends in Florence

The chart displays monthly precipitation patterns in Florence, 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 Florence, May typically receives around 64 mm (2.5 inches) of precipitation spread over approximately 13 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 Florence

In Florence in May, humidity is 66%. With an average temperature of 13°C (55°F), this humidity feels like a damp chill in the air, making outdoor activities invigorating but requiring a light jacket for comfort while exploring.

May Average Humidity in Florence

This chart illustrates the average monthly humidity levels in Florence, 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 Florence is approximately 66%, 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 Florence

In Florence in May, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Florence.

Maximum UV Index Levels in Florence for May

The chart shows the monthly maximum UV Index (UVI) for Florence 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 Florence typically reaches 12, which falls under the extreme exposure category.

Data source: Florence 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 Florence Compares to Other Months

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

This table compares monthly weather conditions in Florence, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-2°C (28°F)	15 mm (0.6 inches)	88%	moderate
February Weather	-3°C (28°F)	21 mm (0.8 inches)	87%	high
March Weather	4°C (39°F)	37 mm (1.5 inches)	81%	very high
April Weather	8°C (46°F)	41 mm (1.6 inches)	76%	extreme
May Weather	13°C (55°F)	64 mm (2.5 inches)	66%	extreme
June Weather	20°C (68°F)	42 mm (1.7 inches)	58%	extreme
July Weather	22°C (72°F)	78 mm (3.1 inches)	52%	extreme
August Weather	21°C (70°F)	62 mm (2.4 inches)	56%	extreme
September Weather	18°C (64°F)	31 mm (1.2 inches)	65%	very high
October Weather	9°C (48°F)	25 mm (1.0 inches)	76%	high
November Weather	3°C (38°F)	15 mm (0.6 inches)	82%	moderate
December Weather	-1°C (31°F)	11 mm (0.4 inches)	89%	moderate