Riola Sardo, Italy offers 1 beach perfect for sunbathing, surfing, swimming, and more. Riola Sardo is known for the nearby archaeological site of Tharros and the beautiful beaches of the Sinis Peninsula. The best time to travel to Riola Sardo, Italy, is from May to September, when the average air temperature is around 75°F (24°C) and the water temperature is approximately 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!