Cassano All Ionio, Italy offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Cassano All Ionio is known for the archaeological site of Sybaris. The best time to travel to Cassano All'Ionio, Italy, is from May to September, with average air temperatures ranging from 70°F to 85°F and water temperatures around 75°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!