Pack or skip
Swimsuit for Jacksonville in September
Verdict
Pack it
Highs around 87°F — pools, beaches, and rooftop bars.
Why
Jacksonville in September averages highs of 87°F, lows of 70°F, 12 rainy days.
That climate means a swimsuit earns its space in the bag. Highs around 87°F — pools, beaches, and rooftop bars.