Ometteux, New Caledonia offers 1 beach perfect for sunbathing, surfing, swimming, and more. Ometteux is known for its proximity to the UNESCO World Heritage-listed Lagoons of New Caledonia. The best time to travel to Ometteux, New Caledonia, is from September to November, with average air temperatures around 24°C (75°F) and water temperatures near 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!