Nea Ionia, Greece offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Nea Ionia, Thessaly, Greece, is known for its proximity to the Meteora rock formations and monasteries. The best time to travel to Nea Ionia, Greece, is from May to September, with average air temperatures ranging from 75-85°F (24-29°C) and water temperatures around 73-79°F (23-26°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!