Siriuba, Brazil offers 3 beaches perfect for sunbathing, surfing, swimming, and more. Siriuba is known for its beautiful beaches and vibrant coastal tourism. The best time to travel to Siriuba, Brazil, is from May to September, when the average air temperature ranges from 20°C to 25°C (68°F to 77°F) and the water temperature is around 23°C to 26°C (73°F to 79°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!