Sua, Ecuador offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Sua, Esmeraldas, Ecuador, is known for its beautiful beaches and the nearby ecological reserve, Reserva Ecologica Cayapas-Mataje. The best time to travel to Sua, Ecuador, is from June to September, with average air temperatures around 77°F (25°C) and water temperatures near 75°F (24°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!