Coqueiro, Brazil offers 1 beach perfect for sunbathing, surfing, swimming, and more. Coqueiro, Piaui, Brazil, is known for its beautiful beaches and proximity to the Parnaiba Delta. The best time to travel to Coqueiro, Brazil, is from July 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!