Aciacao, Brazil offers 1 beach perfect for sunbathing, surfing, swimming, and more. Aciacao, Sao Paulo, Brazil, is known for the Parque das Aguas de Aciacao, a popular destination for its natural springs and recreational activities. The best time to travel to Aciacao, Brazil, is from May to September, with average air temperatures around 75°F (24°C) and water temperatures near 72°F (22°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!