Great Harbour Bay, British Virgin Islands offers 1 beach perfect for sunbathing, surfing, swimming, and more. Great Harbour Bay, Jost Van Dyke, British Virgin Islands, is known for the famous beach bar Foxy's and the New Year's Eve celebrations. The best time to travel to Great Harbour Bay, British Virgin Islands, is from December to April, with average air temperatures around 77-82°F (25-28°C) and water temperatures about 79-82°F (26-28°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!