Kallianos, Greece offers 1 beach perfect for sunbathing, surfing, swimming, and more. Kallianos is known for its proximity to the archaeological site of Delphi. The best time to travel to Kallianos, Greece, is from May to September, with average air temperatures around 75°F (24°C) and water temperatures near 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!