Which beach should I pick?
In September, Cupsogue Beach averages 20.0°C and Fire Island averages 20.0°C. The two beaches are 43 km apart on the Atlantic Ocean.
For families, Fire Island is the safer pick — shallow, calm and accessible.
Cupsogue Beach vs Fire Island
Side-by-side sea temperature, swim score and wave conditions. The two beaches sit roughly 43 km apart.