Capuchin, Dominica offers 1 beach perfect for sunbathing, surfing, swimming, and more. Capuchin, Saint John, Dominica, is known for the Cabrits National Park and the historic Fort Shirley. The best time to travel to Capuchin, Dominica, 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!