Agios Antonios, Greece offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Agios Antonios is known for its proximity to the ancient ruins of Akrotiri and the stunning beaches of Santorini. The best time to travel to Agios Antonios, Greece, is from late May to early October, with average air temperatures ranging from 75°F to 85°F and water temperatures from 72°F to 79°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!