The season here runs backwards from most of the country
Northeast Florida inverts the usual camping calendar, and it matters more in a van than in a hotel. NOAA's climate normals for Jacksonville International put the July average high at 92°F with overnight lows near 73°F, with August and September close behind. The overnight number is the one that counts: without shore power you cannot run air conditioning all night, and a humid 73°F does not shed heat the way a desert night does.
Rain follows the same curve. Jacksonville averages just over 2 inches in November and under 3 inches in April, but roughly 7.5 inches in both June and September, the two wettest months of the year. It arrives as afternoon thunderstorms rather than steady drizzle, but it is enough to keep a campsite wet.
The practical window is November through April. January normals are a 65°F high and a 43°F low, comfortable for sleeping without hookups and cool enough that the biting insects ease off. That is also the stretch when the RV boondocking apps earn their keep, because you are not tied to an electric site. Late October into November, and March into April, are the shoulder weeks worth aiming for.
Hurricane season is a booking problem, not a trip-ruiner
The Atlantic hurricane season runs June 1 to November 30, with activity concentrated between mid-August and mid-October and a statistical peak around September 10. For a van trip this is a planning input, not a reason to stay home.
What it should change is how you book. Read the rental's cancellation terms before you commit, look at travel insurance if your dates fall inside the peak, and follow the National Hurricane Center in the week before you leave. Florida State Parks charges a cancellation fee, and reservations made for dates beyond the standard booking window cannot be changed until 18 days after you make them, so a far-out September booking is less flexible than it looks.
The state park reservation window is the real constraint
Almost every good coastal campsite near Jacksonville sits in a Florida state park, and Florida runs its own reservation system rather than recreation.gov. Two rules shape everything else:
- Florida residents can book up to 11 months ahead of arrival. Everyone else gets 10 months. If you are flying in from out of state, residents have already had a month on your dates.
- New dates are released daily at 8 a.m. Eastern, and cancelled sites return to inventory the moment they are released. If your first search is empty, the window reopens every morning.
A single reservation is capped at 14 nights, and the state's own policy forbids stacking advance reservations to get around it, a fair signal of how tight the coastal sites are.
Where people actually point a van
Inside the city, and up and down the coast
Little Talbot Island State Park is a campground on an undeveloped barrier island with a Jacksonville address, out on Heckscher Drive and still inside Duval County. Five miles of beach, a four-mile Dune Ridge Trail, and paddling on Simpson Creek. The National Park Service's Timucuan Ecological and Historic Preserve covers the salt marshes on that same side of town, taking in Fort Caroline, Kingsley Plantation and the 600-acre Theodore Roosevelt Area.
North, Fort Clinch State Park occupies the tip of Amelia Island at Fernandina Beach, the northernmost barrier island on Florida's Atlantic coast. It is 1,400 acres with camping, and a row of cannons aimed across the St. Marys River into Georgia; a garrison fires them the first weekend of every month.
South, Anastasia State Park in St. Augustine is 40 miles from downtown Jacksonville, with 139 campsites a short walk from four miles of beach. One quirk to know before you book: the St. Augustine Amphitheatre is next door and its music carries into the campground, though a city ordinance ends it at 10 p.m.
Inland, and over the Georgia line
Ocala National Forest is 607 square miles of sand pine scrub inland from the city, and it is the answer to a hot forecast. The spring pool at Alexander Springs holds around 72°F year-round and has a 67-unit campground that takes tents and RVs; Juniper, Salt and Silver Glen springs are in the same forest. Dispersed camping is permitted on national forest land in Florida, on a previously used site at least 100 feet from water, with a 14-day-per-month limit. During gun hunting season, camping is restricted to designated sites, which is worth confirming before you count on a free night.
Okefenokee National Wildlife Refuge lies just over the state line. The main Suwannee Canal entrance is 11 miles southwest of Folkston, Georgia, and refuge gates close at 7:30 p.m. from March through October and 5:30 p.m. from November through February, so treat the refuge itself as a day trip. Wilderness canoe camping is permit-only, booked about two weeks ahead, and subject to water levels. For a van, Stephen C. Foster State Park on the swamp's west side has 52 tent, trailer and RV sites with electric hookups and is a certified Dark Sky park; its gates lock at 10 p.m.
The long hauls
The Everglades and the Keys are both real trips from here rather than weekends. Everglades National Park books through recreation.gov on a different rhythm, with wilderness sites opening 90 days out against 10 months for Florida's state parks. Its dry season, December to mid-May, is the half of the year you want. The Keys are further than the map suggests: after the length of the peninsula, US-1 runs another 113 miles through the islands, mile markers counting down from 106 at Key Largo to 0 at Key West.
Pickup, and why one-way works from here
Jacksonville International (JAX) sits 13 miles north of downtown, inside the city limits. Jacksonville is also the eastern end of Interstate 10, which terminates at I-95 near downtown and runs 362 miles west across Florida through Lake City, Tallahassee and Pensacola to the Alabama line. Between that and I-95 running the full length of the coast, this is a natural place to begin or end a one-way RV rental rather than a loop.