Roto, Cook Islands offers 1 beach perfect for sunbathing, surfing, swimming, and more. Roto, Pukapuka, Cook Islands, is known for its pristine beaches and vibrant marine life, offering a secluded paradise for travelers. The best time to travel to Rarotonga, Cook Islands, is from May to October, when the average air temperature is around 25°C (77°F) and the water temperature is approximately 24°C (75°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!