San Giovanni a Piro, Italy offers 3 beaches perfect for sunbathing, surfing, swimming, and more. San Giovanni a Piro is known for the Cilento and Vallo di Diano National Park, a UNESCO World Heritage Site. The best time to travel to San Giovanni a Piro, 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 22°C to 27°C (72°F to 81°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!