Puerto Cayo, Ecuador offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Puerto Cayo is known for its tranquil beaches and scenic coastal views. The best time to travel to Puerto Cayo, Ecuador, is from June to September, when the average air temperature is around 24°C (75°F) and the water temperature is approximately 23°C (73°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!