Montemarciano, Italy offers 1 beach perfect for sunbathing, surfing, swimming, and more. Montemarciano is known for its proximity to the Adriatic Sea and the historic Rocca Roveresca. The best time to travel to Montemarciano, Italy, is from May to September, with average air temperatures ranging from 20°C to 30°C (68°F to 86°F) and average sea temperatures from 20°C to 26°C (68°F to 79°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!