Weather in Jacksonville in August 2025
Average weather
Average temperature in Jacksonville in August
Going from a maximum of +99°F during the day to a minimum of +73°F during the night, the temperature in August averages around +93°F.
The average maximum temperature goes up 7% by the end of the month, compared with the beginning of the month, from +91°F to +93°F.
Is Jacksonville warm or cold in August?
Jacksonville is typically hot in August.
Maximum temperatures go down compared to the previous month from +91°F to +90°F. The minimum temperature also goes up from +75°F to +75°F.
Make sure that you pack your summer linen and swimming costumes; it’s probably going to be hot.
August is one of the warmest months in Jacksonville, here is the comparison with other months:
Climate in Jacksonville in August
| July | August | September | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +91°F | +90°F | +86°F | ||||
| Min. temperature | ||||||
| +66°F | +64°F | +52°F | ||||
| Max. temperature | ||||||
| +102°F | +102°F | +97°F | ||||
| Rainfall | ||||||
| 120 mm | 134 mm | 117 mm | ||||
| Wind | ||||||
| 2 m/s | 2 m/s | 3 m/s | ||||
| Humidity | ||||||
| 78% | 81% | 81% | ||||
| Air pressure | ||||||
| 1016 HPa | 1015 HPa | 1014 HPa | ||||
| Sunny days | ||||||
| 1 | 1 | 3 | ||||
| Cloudy days | ||||||
| 4 | 3 | 6 | ||||
| Rainy days | ||||||
| 18 | 20 | 18 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
August weather is still as ok as in July. It’s getting colder in August. From +91°F in the day, the average maximum temperature lowers to +90°F. Prepare for more rain. Average rainfall goes from 120 mm to 134 mm. Humidity rises from 78% to 81%. The average wind speed doesn’t change much during August, staying around 2 m/s. The amount of sunny days stay about the same, averaging 1 sunny days during the month.
September brings much the same weather, it remains ok.
Wind
The average wind speed is 3 m/s getting up to 9 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Jacksonville is gradually increasing during August, going from 2 m/s to 4 m/s over the course of the month.
Rain
How was the weather last August in Jacksonville?
Climate Change Over the Years
The climate in Jacksonville in August has not changed that much over the last 43 years.
The average temperature was the lowest in 1983 (+75°F) and the highest in 2015 (+82°F). The driest year was 2006 with only 554 mm of rainfall, and the wettest year was 2020 with 1607 mm.
FAQ
Is August a good time to visit Jacksonville?
Can you sunbathe in Jacksonville in August?
Is Jacksonville rainy in August?
Is it sunny in Jacksonville in August?
Other cities in USA
Monthly weather in Jacksonville
Source of the data
For this page, we’ve looked at the typical weather in Jacksonville, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.