May Weather in Florence, United States

Last updated: June 24, 2025

In May, the average temperature in Florence, United States hovers around 23°C (74°F). Expect variations, with minimums dipping to 5°C (42°F) and maximums soaring to 37°C (99°F). During this time, anticipate 121 mm (4.8 in) of precipitation spread over approximately 10 days, alongside an average humidity level of 81%. Prepare for a warm, and potentially wet, climate!

May Temperature in Florence

In May in Florence, the average temperature is 23°C (74°F). Maximums can reach 37°C (99°F) and minimums can be as low as 5°C (42°F). Be sure to pack for a range of temperatures to make the most of your trip!

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 23°C (74°F), with highs reaching up to 37°C (99°F) and lows dropping to around 5°C (42°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 121 mm (4.8 in) spread over a period of 10 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 121 mm (4.8 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 Florence

In Florence in May, humidity is 81%. With an average temperature of 23°C (74°F), this humidity feels like a warm, heavy blanket draped over your skin, making travel feel a bit more sluggish and requiring plenty of water breaks to stay comfortable.

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 81%, 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 reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, 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 11, 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	9°C (48°F)	78 mm (3.1 inches)	85%	moderate
February Weather	12°C (53°F)	96 mm (3.8 inches)	82%	high
March Weather	14°C (57°F)	67 mm (2.6 inches)	81%	very high
April Weather	18°C (65°F)	95 mm (3.7 inches)	80%	very high
May Weather	23°C (74°F)	121 mm (4.8 inches)	81%	extreme
June Weather	26°C (78°F)	139 mm (5.5 inches)	81%	extreme
July Weather	27°C (81°F)	140 mm (5.5 inches)	81%	extreme
August Weather	27°C (80°F)	154 mm (6.0 inches)	80%	very high
September Weather	25°C (77°F)	160 mm (6.3 inches)	79%	very high
October Weather	20°C (68°F)	56 mm (2.2 inches)	80%	very high
November Weather	12°C (55°F)	75 mm (3.0 inches)	85%	high
December Weather	10°C (50°F)	138 mm (5.4 inches)	86%	moderate