Oneroa, Cook Islands offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Oneroa, Atiu, Cook Islands, is known for its unique limestone caves and the traditional tumunu bush beer experience. The best time to travel to Oneroa, Cook Islands, is from May to October, when the average air temperature is around 77°F (25°C) and the water temperature is approximately 79°F (26°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!
