Oristano, Italy offers 3 beaches perfect for sunbathing, surfing, swimming, and more. Oristano is known for its beautiful beaches and rich cultural heritage in Sardinia, Italy. The best time to travel to Oristano, Italy, is from May to September, when the average air temperature ranges from 20°C to 30°C (68°F to 86°F) and the average sea temperature is around 21°C to 25°C (70°F to 77°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!