Alexandrini, Greece offers 1 beach perfect for sunbathing, surfing, swimming, and more. Alexandrini, Thessaly, Greece, is known for its proximity to the Meteora monasteries, a UNESCO World Heritage Site. The best time to travel to Alexandroupoli, Greece, is from late May to early October, with average air temperatures ranging from 70°F to 85°F and water temperatures from 70°F to 78°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!