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May Weather in Jacksonville, United States

Last updated: June 24, 2025

In May, the average temperature in Jacksonville, United States hovers around 19°C (66°F). Expect a wide range, with minimums dipping to 1°C (34°F) and maximums soaring up to 35°C (95°F). During this time, precipitation totals 150 mm (5.9 in) over about 15 days, contributing to an average humidity of 82%—perfect for those who enjoy a lush, atmospheric environment.

May Temperature in Jacksonville

In May in Jacksonville, the average temperature is 19°C (66°F). The maximum can reach 35°C (95°F), and the minimum can be as low as 1°C (34°F). This range makes it a versatile destination for travelers, allowing for both warm afternoons and cool evenings.

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

The chart illustrates May temperature patterns in Jacksonville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Jacksonville, May typically has an average temperature of 19°C (66°F), with highs reaching up to 35°C (95°F) and lows dropping to around 1°C (34°F).
JanFebMarAprMayJunJulAugSepOctNovDec293244536675787571574236
Data source: Temperature data for Jacksonville 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 Jacksonville

In Jacksonville in May, the total precipitation amount is 150 mm (5.9 in) over a span of 15 days.

May Precipitation Trends in Jacksonville

The chart displays monthly precipitation patterns in Jacksonville, 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 Jacksonville, May typically receives around 150 mm (5.9 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec676413712315012310391641026648
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Jacksonville

In Jacksonville in May humidity is 82%. With an average temperature of 19°C (66°F), this humidity feels like a warm blanket wrapping around you, making it slightly uncomfortable for traveling as you might find yourself constantly seeking shade or a cool breeze.

May Average Humidity in Jacksonville

This chart illustrates the average monthly humidity levels in Jacksonville, 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 Jacksonville is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%80%80%80%82%83%81%80%76%76%85%86%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Jacksonville

In Jacksonville in May, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Jacksonville.

Maximum UV Index Levels in Jacksonville for May

The chart shows the monthly maximum UV Index (UVI) for Jacksonville 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 Jacksonville typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec357910111199643
Data source: Jacksonville 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 Jacksonville Compares to Other Months

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

This table compares monthly weather conditions in Jacksonville, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)67 mm (2.6 inches)82%moderate
February Weather0°C (32°F)64 mm (2.5 inches)80%moderate
March Weather7°C (44°F)137 mm (5.4 inches)80%high
April Weather11°C (53°F)123 mm (4.8 inches)80%very high
May Weather19°C (66°F)150 mm (5.9 inches)82%very high
June Weather24°C (75°F)123 mm (4.9 inches)83%extreme
July Weather25°C (78°F)103 mm (4.0 inches)81%extreme
August Weather24°C (75°F)91 mm (3.6 inches)80%very high
September Weather22°C (71°F)64 mm (2.5 inches)76%very high
October Weather14°C (57°F)102 mm (4.0 inches)76%high
November Weather6°C (42°F)66 mm (2.6 inches)85%moderate
December Weather2°C (37°F)48 mm (1.9 inches)86%moderate

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