Roslyn Harbor, United States offers 1 beach perfect for sunbathing, surfing, swimming, and more. Roslyn Harbor, New York, United States, is known for the Nassau County Museum of Art. The best time to visit Roslyn Harbor, United States, is during late spring to early fall when the average air temperature ranges from 60°F to 80°F, and the nearby water temperature is around 60°F to 70°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!
