Athinas, Greece offers 1 beach perfect for sunbathing, surfing, swimming, and more. Athinas, Central Greece, Greece, is known for the archaeological site of Delphi, a UNESCO World Heritage Site. The best time to travel to Athens, Greece, is from late April to early June, with average air temperatures around 20-25°C (68-77°F) and water temperatures around 18-22°C (64-72°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!