Praia do Sinal, Brazil offers 1 beach perfect for sunbathing, surfing, swimming, and more. Praia do Sinal is known for its stunning beaches and vibrant coastal tourism. The best time to travel to Praia do Sinal, Brazil, is from September to November, when the average air temperature is around 27°C (81°F) and the water temperature is approximately 26°C (79°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!