Martim de Sa, Brazil offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Martim de Sa is known for its beautiful beach and vibrant nightlife, making it a popular destination for travelers in Sao Paulo, Brazil. The best time to travel to Martim de Sá, Brazil, is from December to March, when the average air temperature ranges from 75°F to 85°F (24°C to 29°C) and the water temperature is around 77°F to 82°F (25°C to 28°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!