Exo Nymfio, Greece offers 1 beach perfect for sunbathing, surfing, swimming, and more. Exo Nymfio, Peloponnese, Greece, is known for its proximity to the historic site of Ancient Olympia. The best time to travel to Exo Nymfio, 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!