Potami, Greece offers 5 beaches perfect for sunbathing, surfing, swimming, and more. Potami, Central Greece, Greece, is known for its proximity to the historical site of Delphi and the scenic beauty of Mount Parnassus. The best time to travel to Potami, Greece, is from late May to early October, 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!