How Crowded Is Buck Island Reef in September?
September is a very quiet month at Buck Island Reef National Monument, running about 0.3× the park's average month — roughly 3% of the year's visitors come in September. It is the quietest month of the year here — the best time to have the place largely to yourself, though you may trade away some warmth and daylight. You'll get about 12.1 hours of daylight to explore.
Frequently Asked Questions
September is very quiet at Buck Island Reef National Monument (about 0.3× the average month). Our best-time score rates it "Excellent". The single best month overall is September.
The busiest month is March and the quietest is September. September sits at about 0.3× the park's average, or 3% of annual visitation.
Source: National Park Service Visitor Use Statistics (1979–2025). Updated 2026-06-20.