Megalo Chorio, Greece offers 1 beach perfect for sunbathing, surfing, swimming, and more. Megalo Chorio, South Aegean, Greece, is known for its proximity to the medieval Castle of the Knights and the scenic beaches of Tilos. The best time to visit Megalo Chorio, 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!