Kato Polydendri, Greece offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Diros, Peloponnese, Greece, is known for its stunning Diros Caves, which feature spectacular underground lakes and impressive stalactite formations. The best time to travel to Kato Polydendri, Greece, is from late May to early October, when the average air temperature ranges from 25°C to 30°C (77°F to 86°F) and the sea temperature is around 22°C to 26°C (72°F to 79°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!