Is Jacksonville hot in September?
Days are typically hot at 31.5°C, while nights average 23.5°C.
United States · 1991–2020 normal
Jacksonville in
September.
Typical September weather in Jacksonville: 31.5°C by day, 23.5°C at night, 157 mm of rain over 10 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high31.5°C
Typical low23.5°C
Rain157 mm
Wet days10
In the year-round weather comparison, September scores 37 out of 100 (November leads the year at 91). Daylight is calculated as 12 h 19 from latitude 30.33°. Open-water sea temperature is 27.9°C (27 km from the place centre).
September at a glance
What is Jacksonville like in September?
Plain answers from the measured climate record—not a forecast or a promise about a particular trip.
Does it rain much?
The measured monthly average is 157 mm across about 10 wet days.
How much daylight is there?
There are about 12 h 19 between sunrise and sunset at mid-month, calculated from the place latitude.
Is September a good time to visit?
September ranks 9 of 12 in our weather comparison; November ranks first.
Event window
Warm sea in September
The nearest open-water NOAA OISST 1991–2020 cell averages 27.9°C in September. A sheltered bay can run warmer than that open-water cell.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 4160021
- NOAA station
- USW00093837 · JACKSONVILLE NAS
- Station distance
- 11 km from the place centre
- Coverage
- Strong coverage · 28 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.
Next step
Choose your month.
Then plan the details.
The weather comparison for Jacksonville is based on climate evidence, not payments from travel companies. Flight, accommodation and activity links will be clearly labelled when they are added; there are no booking offers on this page today.
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