Morne Jaune, Dominica offers 1 beach perfect for sunbathing, surfing, swimming, and more. Morne Jaune is known for its proximity to the Morne Trois Pitons National Park, a UNESCO World Heritage Site. The best time to travel to Morne Jaune, Dominica, is from December to April, with average air temperatures around 77-82°F (25-28°C) and water temperatures near 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!