Coral Harbor, United States Virgin Islands offers 9 beaches perfect for sunbathing, surfing, swimming, and more. Cotterelle is known for its proximity to the beautiful Jacmel beaches and the vibrant cultural festivals in the region. The best time to travel to Coral Harbor, United States Virgin Islands, is from December to April, with average air temperatures around 77-82°F and water temperatures about 79-82°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!