Tupai, French Polynesia offers 1 beach perfect for sunbathing, surfing, swimming, and more. Chandgram is known for the Sundarbans, a UNESCO World Heritage Site and the largest mangrove forest in the world. The best time to travel to Tupai, 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!