Asteri, Greece offers 1 beach perfect for sunbathing, surfing, swimming, and more. Asteri is known for its proximity to the ancient site of Olympia, where the original Olympic Games were held. The best time to travel to Asteri, Greece, is from late May to early October, with average air temperatures ranging from 75-85°F (24-29°C) and water temperatures around 73-79°F (23-26°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!