Santo Agostinho, Brazil offers 15 beaches perfect for sunbathing, surfing, swimming, and more. Santo Agostinho, Pernambuco, Brazil, is known for its beautiful beaches like Calhetas and Gaibu, and the historical site of the Suape Fortress. The best time to travel to Santo Agostinho, Brazil, is from September to March, with average air temperatures around 80°F (27°C) and water temperatures near 82°F (28°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!