Mero, Dominica offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Mero, Saint Joseph, Dominica, is known for Mero Beach, a popular destination for its black sand and vibrant local culture. The best time to travel to Mero, 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!