Nea Stira, Greece offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Nea Stira is known for its proximity to the ancient site of Eretria and the beautiful beaches along the Euboean Gulf. The best time to travel to Nea Stira, Greece, is from late May to early October, with average air temperatures ranging from 75°F to 85°F and water temperatures around 73°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!