Mandra, Greece offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Mandra is known for its proximity to the Nestos River and the Nestos Delta National Park. The best time to travel to Mandra, Greece, is from May to September, with average air temperatures ranging from 75°F to 90°F and water temperatures from 70°F to 80°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!