Climate averages 1991–2020
Jacksonville weather
in August.
A hot, wet month: the 2nd warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a hot month in Jacksonville: daytime highs average 30.9°C and nights cool to about 24.1°C. By daytime temperature it is the 2nd warmest of the 12 months.
Expect about 141 mm of rain on roughly 22 days, which makes August a wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 13 h 15 min on an average August day.
The nearest other city in this atlas is Palm Coast (94 km away). In August its highs average 30.3°C, 0.6°C cooler than Jacksonville, with 152 mm of rain.
Among the 498 cities listed in the United States, Jacksonville ranks joint 174th of 498 for the warmest August highs and 458th of 498 for the driest August (rainfall, lowest first). The mean August high of those 498 cities is 29.9°C; Jacksonville is 1.0°C warmer than that mean.
From August to September, average highs fall by 2.0°C to 29.0°C, and monthly rainfall falls from 141 mm to 121 mm.
The annual picture
August in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Jacksonville climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 17.3°C8.8°C | 8.8°C | 66 | 7.3 | 10.410 h |
| February | 19.2°C10.3°C | 10.3°C | 63 | 6.9 | 11.111 h |
| March | 22.2°C12.6°C | 12.6°C | 76 | 7.5 | 12.012 h |
| April | 25.6°C15.9°C | 15.9°C | 58 | 6.9 | 12.913 h |
| May | 29.0°C19.6°C | 19.6°C | 66 | 8.9 | 13.714 h |
| June | 30.7°C22.9°C | 22.9°C | 131 | 18.9 | 14.114 h |
| July | 31.7°C24.1°C | 24.1°C | 125 | 20.4 | 13.914 h |
| August, selected | 30.9°C24.1°C | 24.1°C | 141 | 21.6 | 13.213 h |
| September | 29.0°C22.8°C | 22.8°C | 121 | 15.8 | 12.412 h |
| October | 25.7°C18.7°C | 18.7°C | 70 | 9.2 | 11.511 h |
| November | 21.6°C13.7°C | 13.7°C | 42 | 6.0 | 10.711 h |
| December | 18.6°C10.6°C | 10.6°C | 58 | 6.5 | 10.210 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
August in nearby cities
- Palm Coast in AugustUnited States · 94 kmHigh 30.3°C · Low 24.9°C · 152 mm rain
- Gainesville in AugustUnited States · 99 kmHigh 31.3°C · Low 23.5°C · 147 mm rain
- Daytona Beach in AugustUnited States · 139 kmHigh 30.8°C · Low 24.5°C · 133 mm rain
- Deltona in AugustUnited States · 164 kmHigh 31.2°C · Low 24.2°C · 186 mm rain
- Alafaya in AugustUnited States · 201 kmHigh 31.0°C · Low 24.1°C · 170 mm rain
- Orlando in AugustUnited States · 201 kmHigh 31.1°C · Low 24.0°C · 165 mm rain
- Savannah in AugustUnited States · 202 kmHigh 30.4°C · Low 23.9°C · 150 mm rain
- Spring Hill in AugustUnited States · 223 kmHigh 30.9°C · Low 24.1°C · 207 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Jacksonville) is explained once on the Jacksonville year overview and on the Sources, method and limits page.