Camping in Hawaii is a different animal from camping on the mainland. Fewer bugs, no bears, and for most sites no permit lotteries opening months out. What trips people up is the booking system itself. Legal campgrounds run through four separate agencies (state, National Park Service, county, and private concessionaires), and the good ocean-front sites can fill fast even in shoulder season.
Fall, roughly late September through mid-November, is one of the easier seasons to actually camp in Hawaii. Trade winds moderate. Rain stays mostly on the windward sides. Summer holiday crowds are gone, winter break crowds haven't landed yet, and most campgrounds still have open nights inside the standard 30-day booking window. If you've been thinking about trying it, this is a good time.
Here's how the systems work, and where to actually go on each island.
