Jacksonville weather in August
August in Jacksonville: hot, soaked, with very humid — a gamble, with 24 rainy days.
#11 of 12 months in Jacksonville · #743 of 897 destinations to visit in August · comfort 61/100 (tier C)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Jacksonville in August
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Jacksonville climate normals — August
| Daytime high | 31°C / 88°F | 🥵 hot |
|---|---|---|
| Nighttime low | 25°C / 77°F | |
| Rainfall | 161 mm / 6.3 in | ⛈ soaked |
| Rainy days | 24 days | |
| Humidity | 80% | 💦 very humid |
| Dew point | 24°C / 75°F | |
| Sunshine | 10.3 h/day | |
| Daylight | 13.2 h | |
| Wind | 13 km/h / 8 mph | |
| Air quality (US AQI) | 55 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Jacksonville in August — FAQ
- Is August a good time to visit Jacksonville?
- August in Jacksonville: hot, soaked, with very humid — a gamble, with 24 rainy days. It ranks #11 of 12 months for Jacksonville on SeasonMap's comfort score (61/100).
- What is the weather like in Jacksonville in August?
- In August, Jacksonville averages a daily high of 31.3°C and a low of 24.8°C, with about 161.2 mm of rain over roughly 23.8 rainy days.
- What is the air quality in Jacksonville in August?
- Jacksonville has a mean US Air Quality Index of about 55 in August.