Belvedere Marittimo, Italy offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Belvedere Marittimo is known for its historic Castello del Belvedere and the beautiful beaches along the Tyrrhenian Sea. The best time to travel to Belvedere Marittimo, Italy, is from May to September, with average air temperatures ranging from 20°C to 30°C and water temperatures from 20°C to 26°C. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!