Sympolitia, Greece offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Sympolitia, Western Greece, Greece, is known for the ancient ruins of the Temple of Apollo and the annual Sympolitia Cultural Festival. The best time to travel to Sympolitia, 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!