Ponza, Italy offers 5 beaches perfect for sunbathing, surfing, swimming, and more. Ponza is known for its stunning beaches, crystal-clear waters, and the Grotte di Pilato. The best time to travel to Ponza, Italy, is from June to September, when the average air temperature is around 75°F (24°C) and the water temperature is approximately 73°F (23°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!