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May Weather in Florence, United States

Last updated: June 24, 2025

The average temperature in Florence, United States for May hovers around 24°C (76°F). Minimum temperatures can drop to 9°C (49°F), while maximums can soar to 37°C (99°F). Expect precipitation to reach approximately 172 mm (6.8 in) over 14 days, and be prepared for a high average humidity of 82%.

May Temperature in Florence

In May in Florence, the average temperature is 24°C (76°F). Maximums can reach 37°C (99°F), while minimums can be as low as 9°C (49°F). This diverse temperature range makes Florence an ideal destination for travelers seeking both warmth and cooler respite.

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 24°C (76°F), with highs reaching up to 37°C (99°F) and lows dropping to around 9°C (49°F).
JanFebMarAprMayJunJulAugSepOctNovDec505263687682858679705954
Data source: Temperature data for Florence generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Florence

In Florence in May, the total precipitation amount is 172 mm (6.8 in) spread over a duration of 14 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 172 mm (6.8 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec526473861737870971031014464
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Florence

In Florence in May, humidity is 82%. With an average temperature of 24°C (76°F), this humidity feels like wearing a warm, damp blanket, making travel uncomfortable and sticky as you explore.

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 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec78%78%77%78%82%78%69%63%66%73%84%87%
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.
JanFebMarAprMayJunJulAugSepOctNovDec579111112121111864
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.
 TemperaturePrecipitationHumidityUV
January Weather10°C (51°F)52 mm (2.0 inches)78%moderate
February Weather11°C (52°F)64 mm (2.5 inches)78%high
March Weather17°C (63°F)73 mm (2.9 inches)77%very high
April Weather20°C (68°F)86 mm (3.4 inches)78%extreme
May Weather24°C (76°F)172 mm (6.8 inches)82%extreme
June Weather28°C (82°F)78 mm (3.1 inches)78%extreme
July Weather30°C (85°F)70 mm (2.8 inches)69%extreme
August Weather30°C (86°F)97 mm (3.8 inches)63%extreme
September Weather26°C (80°F)103 mm (4.1 inches)66%extreme
October Weather21°C (70°F)101 mm (4.0 inches)73%very high
November Weather15°C (59°F)44 mm (1.7 inches)84%high
December Weather12°C (54°F)64 mm (2.5 inches)87%moderate

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