How Crowded Is Theodore Roosevelt Island in September?
Busy1.2× average month · best-time score 24/100
September is a busy month at Theodore Roosevelt Island, running about 1.2× the park's average month — roughly 10% of the year's visitors come in September. That puts it between the October peak and the February low. Overall our best-time score rates September as "Poor" for a visit. You'll get about 12.2 hours of daylight to explore.
Frequently Asked Questions
September is busy at Theodore Roosevelt Island (about 1.2× the average month). Our best-time score rates it "Poor". The single best month overall is February.
The busiest month is October and the quietest is February. September sits at about 1.2× the park's average, or 10% of annual visitation.
Source: National Park Service Visitor Use Statistics (1979–2025). Updated 2026-06-20.