Caion, Spain offers 7 beaches perfect for sunbathing, surfing, swimming, and more. Caion is known for its beautiful beaches and charming coastal atmosphere. The best time to travel to Caión, Spain, is during the summer months of June to August, when the average air temperature ranges from 20°C to 25°C (68°F to 77°F) and the average sea temperature is around 18°C to 20°C (64°F to 68°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!