Grosseto Prugna, France offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Grosseto Prugna is known for its proximity to the beautiful beaches of Porticcio and the scenic landscapes of Corsica. The best time to travel to Grosseto Prugna, France, is from June to September, with average air temperatures around 25°C (77°F) and water temperatures around 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!