August Weather in Jacksonville, United States

Last updated: June 24, 2025

In Jacksonville, United States during August, the average temperature hovers around 26°C (79°F). You can expect a minimum of 16°C (60°F), while the mercury can rise to a maximum of 35°C (95°F). With an average humidity of 80%, the climate feels quite humid. Additionally, be prepared for precipitation, as 215 mm (8.5 in) of rain typically falls over 21 days.

August Temperature in Jacksonville

In August in Jacksonville, the average temperature is 26°C (79°F). The maximum can reach 35°C (95°F) and the minimum can be as low as 16°C (60°F). This pleasant climate makes it an ideal destination for travelers seeking warmth and comfortable weather.

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 26°C (79°F), with highs reaching up to 35°C (95°F) and lows dropping to around 16°C (60°F).

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

August Precipitation in Jacksonville

In Jacksonville in August, the precipitation amount is 215 mm (8.5 in) over a span of 21 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 215 mm (8.5 inches) of precipitation spread over approximately 21 days.

Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

August Humidity in Jacksonville

In Jacksonville in August humidity is 80%. With an average temperature of 26°C (79°F), this humidity feels like a heavy blanket, making outdoor activities feel sticky and exhausting, potentially dampening the travel experience and necessitating frequent breaks to cool down and hydrate.

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 80%, offering insight into how humid the weather typically is during this month.

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 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 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 10, which falls under the very high exposure category.

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.
	Temperature	Precipitation	Humidity	UV
January Weather	8°C (47°F)	73 mm (2.9 inches)	85%	moderate
February Weather	11°C (52°F)	98 mm (3.8 inches)	82%	high
March Weather	13°C (55°F)	67 mm (2.6 inches)	81%	very high
April Weather	17°C (63°F)	114 mm (4.5 inches)	80%	very high
May Weather	22°C (72°F)	122 mm (4.8 inches)	81%	extreme
June Weather	25°C (77°F)	191 mm (7.5 inches)	81%	extreme
July Weather	27°C (80°F)	176 mm (6.9 inches)	81%	extreme
August Weather	26°C (79°F)	215 mm (8.5 inches)	80%	very high
September Weather	24°C (76°F)	224 mm (8.8 inches)	79%	very high
October Weather	20°C (68°F)	69 mm (2.7 inches)	80%	very high
November Weather	13°C (55°F)	110 mm (4.3 inches)	85%	high
December Weather	10°C (50°F)	116 mm (4.6 inches)	86%	moderate