Mu, New Caledonia offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Mu, Loyalty Islands Province, New Caledonia, is known for its stunning beaches and vibrant marine life, particularly at Luengoni Beach and Jokin Cliffs. The best time to travel to Mu, New Caledonia, is from September to November, when the average air temperature is around 25°C (77°F) and the water temperature is approximately 23°C (73°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!