Motu Tuanai, French Polynesia offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Motu Tuanai is known for its stunning overwater bungalows and vibrant coral reefs. The best time to travel to Motu Tuanai, French Polynesia, is from May to October, when the average air temperature is around 77-86°F (25-30°C) and the water temperature is approximately 79-84°F (26-29°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!