Rio Tinto, Honduras offers 6 beaches perfect for sunbathing, surfing, swimming, and more. Rio Tinto, Atlantida, Honduras, is known for the Rio Platano Biosphere Reserve. The best time to travel to Rio Tinto, Honduras, is from December to April, with average air temperatures around 77°F (25°C) and water temperatures near 81°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!