Marettimo, Italy offers 1 beach perfect for sunbathing, surfing, swimming, and more. Marettimo is known for its stunning marine reserve and the ancient Byzantine church of Case Romane. The best time to travel to Marettimo, Italy, is from May to September, when the average air temperature is around 25°C (77°F) and the water temperature is approximately 23°C (73°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!