Monthly climate guide
Jacksonville weather in August
With highs near 33°C (91°F) and lows around 24°C (74°F), August feels very hot in Jacksonville. Rainfall averages about 173 mm (very wet) and the sky is often cloudy. Daytime highs are about the same as July and 2°C warmer than September.
What stands out in August
- Even after dark it stays around 24°C, so sleeping can feel warm.
- August brings late summer to Jacksonville.
- August is Jacksonville's second warmest month.
- It's humid — around 81% — so the heat feels heavier.
Avg high
33°C
91°F
Avg low
24°C
74°F
Rainfall
173 mm
very wet
Humidity
81%
relative
Sky
59%
cloud · often cloudy
Jacksonville weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 18°C / 64°F | 6°C / 43°F | 79 mm | 80% | 66% |
| February | 21°C / 70°F | 9°C / 48°F | 78 mm | 81% | 62% |
| March | 24°C / 75°F | 11°C / 52°F | 67 mm | 75% | 52% |
| April | 28°C / 82°F | 15°C / 59°F | 90 mm | 73% | 48% |
| May | 31°C / 88°F | 19°C / 66°F | 106 mm | 69% | 45% |
| June | 32°C / 90°F | 22°C / 72°F | 194 mm | 76% | 58% |
| July | 33°C / 92°F | 23°C / 74°F | 155 mm | 78% | 55% |
| August | 33°C / 91°F | 24°C / 74°F | 173 mm | 81% | 59% |
| September | 31°C / 87°F | 22°C / 71°F | 148 mm | 82% | 60% |
| October | 27°C / 81°F | 17°C / 63°F | 83 mm | 80% | 51% |
| November | 23°C / 73°F | 12°C / 53°F | 65 mm | 80% | 60% |
| December | 21°C / 69°F | 9°C / 49°F | 81 mm | 84% | 67% |
What to pack for August
- Light, breathable clothing (cotton or linen)
- A sun hat and high-SPF sunscreen
- A refillable water bottle
- A compact umbrella or packable rain jacket
- Water-resistant shoes
- Quick-dry fabrics — it feels stickier than the temperature suggests
Is August a good time to visit Jacksonville?
Compare the months in the chart above to find your ideal window.
Best time to visit Jacksonville →Other United States cities in August
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Jacksonville weather in August. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/usa/jacksonville/august
<a href="https://weathercompare.eu/weather/usa/jacksonville/august">Jacksonville weather in August</a> (WeatherCompare)
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Jacksonville in August: quick answers
Is August a good time to visit Jacksonville?
It can be, if you like heat: August highs in Jacksonville are around 33°C. Good for the beach; plan sightseeing for early morning and evening.
How warm is Jacksonville in August?
Average highs are about 33°C (91°F) and average lows about 24°C (74°F), based on 10 years of daily data.
Does it rain a lot in Jacksonville in August?
Jacksonville typically gets around 173 mm of rain in August — very wet.
Figures are long-term averages for the area around Jacksonville (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.