Tarquinia, Italy offers 10 beaches perfect for sunbathing, surfing, swimming, and more. Tarquinia is known for its UNESCO-listed Etruscan Necropolises and the National Museum of Tarquinia. The best time to travel to Tarquinia, Italy, is from May to September, with average air temperatures ranging from 70°F to 85°F and water temperatures from 68°F to 77°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!