Mon Desert, Mauritius offers 1 beach perfect for sunbathing, surfing, swimming, and more. Mon Desert, Grand Port, Mauritius, is known for its historical significance and proximity to the site of the Battle of Grand Port. The best time to travel to Mon Desert, Mauritius, is from May to December, with average air temperatures around 24-28°C (75-82°F) and water temperatures around 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!