Purumim, Brazil offers 3 beaches perfect for sunbathing, surfing, swimming, and more. Purumim, Rio Grande do Sul, Brazil, is known for its proximity to the scenic Lagoa dos Barros and the historic Igreja Matriz Nossa Senhora da Purificacao. The best time to travel to Purumim, 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!