Cape Vincent, United States offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Cape Vincent is known for its proximity to the Thousand Islands region and the historic Tibbetts Point Lighthouse. The best time to travel to Cape Vincent, United States, is during the summer months of June to August, when the average air temperature is around 70-75°F (21-24°C) and the water temperature is approximately 65-70°F (18-21°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!