September Packing List for Jacksonville — What to Wear & Bring

These fabrics drape well and stay cool in Jacksonville's 87°F September humidity near Riverside.

A good weight for 70°F September nights when the humidity still lingers in downtown Jacksonville.

The Atlantic water is at its warmest in September, making 87°F days perfect for Jacksonville Beach.

While it's 87°F outside, Jacksonville's indoor AC is often cranked high to combat September humidity.

Great for the 12 rain days in September where you want a closed shoe that still breathes at 87°F.

Perfect for a 87°F walk through the historic Avondale neighborhood in September.

Still essential for 87°F beach days at Neptune Beach in September.

Essential for the 12 rain days in September when Jacksonville's air is thick with moisture.

Useful for the 12 rain days in September when you're likely to get caught in a sudden Jacksonville shower.

Provides extra protection during 87°F fishing trips on the St. Johns River.

With 12 rain days in September, a small umbrella is a must-carry for any Jacksonville sightseeing at 87°F.

A breathable rain layer is perfect for navigating the 87°F tropical moisture of a Jacksonville September.

Jacksonville's September averages 12 rain days with 87°F heat — small waterproof pouches keep electronics and documents dry during sudden St. Johns River-area showers.