Skiathos, Greece offers 23 beaches perfect for sunbathing, surfing, swimming, and more. Skiathos is known for its stunning beaches like Koukounaries and Lalaria, as well as the historic Monastery of Evangelistria. The best time to travel to Skiathos, Greece, is from June to September, with average air temperatures around 77°F (25°C) and water temperatures around 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!