Porto das Dunas, Brazil offers 3 beaches perfect for sunbathing, surfing, swimming, and more. Porto das Dunas is known for Beach Park, one of the largest water parks in Latin America. The best time to travel to Porto das Dunas, Brazil, is from July to December, with average air temperatures around 77-86°F (25-30°C) and water temperatures around 79-82°F (26-28°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!