Diafani, Greece offers 1 beach perfect for sunbathing, surfing, swimming, and more. Diafani is known for its picturesque harbor, traditional Greek charm, and access to the unspoiled natural beauty of Karpathos Island. The best time to travel to Diafani, Greece, is from May to September, with average air temperatures ranging from 75°F to 85°F and water temperatures around 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!