Isle of Palms, United States offers 5 beaches perfect for sunbathing, surfing, swimming, and more. Isle of Palms is known for its beautiful beaches and family-friendly vacation atmosphere. The best time to travel to Isle of Palms is from April to June, with average air temperatures around 70-85°F and water temperatures ranging from 65-75°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!