Jacksonville weather in August
Temperature, rain and sunshine in August: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in August
Poor
Best time to visit: October – May
What is the weather like in Jacksonville in August?
In August, Jacksonville is hot: daytime highs average 31 °C, and even at night it stays warm at around 24 °C. The sun shines for around 7 hours a day. It rains often – on about 21 days, adding up to 153 mm. On about 21 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, August is not an ideal month for a holiday in Jacksonville.
August compared
How the weather changes from July to September. Tap a month to open it.
| JulyJul | AugustAug | SeptemberSep | |
|---|---|---|---|
| Score | 37 | 39 | 51 |
| Day | 32° | 31° | 29° |
| Night | 24° | 24° | 23° |
| Sun | 8 h | 7 h | 6 h |
| Rain days | 19 | 21 | 16 |
More details for August
- Daylight
- 13 h 17 min06:53 – 20:10
- UV index
- 11 · extremeclear sky, noon (estimate)All months
- Muggy days
- 31 daysdew point 18 °C or moreAll months
- Wind
- 15 km/haverage daily peakAll months
- Cloud cover
- 62 %on averageAll months
- Hot days
- 21 days30 °C or moreAll months
- Time zone
- UTC−4America/New_York
How the score comes together
- Temperatureweight 50 %51 %
- Sunshineweight 20 %67 %
- Few rainy daysweight 30 %0 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in August
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Water bottle – drink plenty
- Insect repellent
- Rain jacket or umbrella
Jacksonville in August: quick answers
Is Jacksonville hot in August?
Yes. In August, Jacksonville is hot: daytime highs average 31 °C and nights stay around 24 °C. On about 21 days the thermometer climbs to 30 °C or more.
Does it rain much in Jacksonville in August?
It rains often – on about 21 days, adding up to 153 mm.
Jacksonville month by month
The whole year in JacksonvilleAll destinations: USAFlorida weather in AugustWhere to go in August
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences