Aghia Anna, Greece offers 6 beaches perfect for sunbathing, surfing, swimming, and more. Aghia Anna, South Aegean, Greece, is known for its beautiful beaches like Agia Anna Beach and its proximity to the vibrant nightlife and historical sites of Naxos. The best time to travel to Aghia Anna, Greece, is from June to September, with average air temperatures around 77°F (25°C) and water temperatures near 75°F (24°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!