Emerald Isle, United States offers 7 beaches perfect for sunbathing, surfing, swimming, and more. Emerald Isle is known for its beautiful beaches and the Bogue Inlet Fishing Pier. The best time to travel to Emerald Isle, United States, is from May to September, with average air temperatures ranging from 70°F to 85°F and water temperatures from 75°F to 80°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!