Le Morne, Mauritius offers 8 beaches perfect for sunbathing, surfing, swimming, and more. Le Morne, Riviere Noire, Mauritius, is known for the UNESCO World Heritage Site Le Morne Brabant, a stunning mountain that serves as a symbol of resistance against slavery. The best time to travel to Le Morne, Mauritius, is from May to December when the average air temperature is around 24-28°C (75-82°F) and the water temperature is approximately 23-27°C (73-81°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!