Manguinhos, Brazil offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Manguinhos, Rio de Janeiro, Brazil, is known for the Fiocruz Museum, which showcases the history of health and science in Brazil. The best time to travel to Manguinhos, Brazil, is from April to September, with average air temperatures around 70-80°F (21-27°C) and water temperatures around 75-80°F (24-27°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!