Mata de Sao Joao, Brazil offers 4 beaches perfect for sunbathing, surfing, swimming, and more. Mata de Sao Joao is known for its stunning beaches and vibrant ecotourism opportunities. The best time to travel to Mata de São João, Brazil, is from September to March, when the average air temperature ranges from 25°C to 30°C (77°F to 86°F) and the water temperature is around 27°C (81°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!