Lagoinha, Brazil offers 1 beach perfect for sunbathing, surfing, swimming, and more. Lagoinha is known for its stunning sand dunes and picturesque beaches. The best time to travel to Lagoinha, Brazil, is from June to September, with average air temperatures around 77°F (25°C) and water temperatures near 80°F (27°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!