Portescusi, Italy offers 5 beaches perfect for sunbathing, surfing, swimming, and more. Portescusi, Sardinia, Italy, is known for its proximity to the stunning Pan di Zucchero rock formation and the ancient mining site of Porto Flavia. The best time to travel to Portoscuso, Italy, is from May to September, with average air temperatures around 75°F (24°C) and water temperatures around 72°F (22°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!