Ithanos, Greece offers 1 beach perfect for sunbathing, surfing, swimming, and more. Ithanos, Crete, Greece, is known for the ancient ruins of the city of Itanos and the nearby Vai Palm Forest. The best time to travel to Ithanos, Greece, is from May to September, with average air temperatures around 75°F (24°C) and water temperatures near 73°F (23°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!