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August Weather in Jacksonville, United States

Last updated: June 24, 2025

In August, the average temperature in Jacksonville, United States hits a pleasant 27°C (82°F), though it can range from a minimum of 22°C (72°F) to a sweltering maximum of 37°C (99°F). Expect a significant amount of rain, with 164 mm (6.4 in) of precipitation over about 26 days, leading to an average humidity of 82%. Stay prepared for a warm and humid month!

August Temperature in Jacksonville

In August in Jacksonville, the average temperature is 27°C (82°F). The maximum can reach 37°C (99°F), while the minimum can be as low as 22°C (72°F). This warm climate makes Jacksonville an ideal destination for travelers looking to enjoy sunny days and outdoor activities.

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

The chart illustrates August 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, August typically has an average temperature of 27°C (82°F), with highs reaching up to 37°C (99°F) and lows dropping to around 22°C (72°F).
JanFebMarAprMayJunJulAugSepOctNovDec566264707679818180746359
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.

August Precipitation in Jacksonville

In Jacksonville in August, the precipitation amount is 164 mm (6.4 in) over the course of 26 days.

August Precipitation Trends in Jacksonville

The chart displays monthly precipitation patterns in Jacksonville, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Jacksonville, August typically receives around 164 mm (6.4 inches) of precipitation spread over approximately 26 days.
JanFebMarAprMayJunJulAugSepOctNovDec4370417187157184164137776579
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Jacksonville

In Jacksonville in August humidity is 82%. With an average temperature of 27°C (82°F), this humidity feels like stepping into a warm, thick blanket, making outdoor activities quite uncomfortable and travel feel a bit sluggish.

August Average Humidity in Jacksonville

This chart illustrates the average monthly humidity levels in Jacksonville, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Jacksonville is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%79%78%73%72%74%82%82%83%79%82%85%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Jacksonville

In Jacksonville in August, 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 Jacksonville.

Maximum UV Index Levels in Jacksonville for August

The chart shows the monthly maximum UV Index (UVI) for Jacksonville in August, 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 August, the maximum UV index in Jacksonville typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec579111111111110865
Data source: Jacksonville August 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 August 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 August’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 August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather13°C (56°F)43 mm (1.7 inches)84%moderate
February Weather17°C (62°F)70 mm (2.8 inches)79%high
March Weather18°C (65°F)41 mm (1.6 inches)78%very high
April Weather21°C (70°F)71 mm (2.8 inches)72%extreme
May Weather24°C (76°F)87 mm (3.4 inches)72%extreme
June Weather26°C (80°F)157 mm (6.2 inches)74%extreme
July Weather27°C (81°F)184 mm (7.2 inches)82%extreme
August Weather27°C (82°F)164 mm (6.4 inches)82%extreme
September Weather26°C (80°F)137 mm (5.4 inches)83%very high
October Weather24°C (75°F)77 mm (3.0 inches)79%very high
November Weather17°C (64°F)65 mm (2.6 inches)82%high
December Weather15°C (59°F)79 mm (3.1 inches)85%moderate

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