Saint Antioco, Italy offers 11 beaches perfect for sunbathing, surfing, swimming, and more. Saint Antioco is known for the Basilica di Sant'Antioco Martire and the ancient Tophet necropolis. The best time to travel to Sant'Antioco, Italy, is from May to September, with average air temperatures around 75°F (24°C) and water temperatures around 72°F (22°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!