Tukao, Cook Islands offers 1 beach perfect for sunbathing, surfing, swimming, and more. Tukao is known for its stunning black pearl farms and pristine lagoon in the Manihiki Atoll. The best time to travel to Tukao, Cook Islands, is from May to October, with average air temperatures around 77°F (25°C) and water temperatures near 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!