Rakahanga, Cook Islands offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Rakahanga is known for its pristine coral atolls and traditional Polynesian culture. The best time to travel to Rakahanga, Cook Islands, is from May to October, with average air temperatures around 77°F (25°C) and water temperatures near 80°F (27°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!