Castel, Guernsey offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Castel, Guernsey, is known for the historic Vale Castle and the beautiful beaches of Vazon Bay. The best time to travel to Castel, Guernsey, is from June to September, with average air temperatures around 15-20°C (59-68°F) and water temperatures around 15-17°C (59-63°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!
