Costa Brava, Brazil offers 1 beach perfect for sunbathing, surfing, swimming, and more. Costa Brava, Alagoas, Brazil, is known for its stunning beaches and vibrant coastal tourism. The best time to travel to Costa Brava, Brazil, is from December to March, when the average air temperature is around 75-85°F (24-29°C) and the water temperature is approximately 77-82°F (25-28°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!