Dionyssos, Greece offers 1 beach perfect for sunbathing, surfing, swimming, and more. Dionyssos, Crete, Greece, is known for its picturesque landscapes and traditional Cretan culture. The best time to travel to Dionyssos, Greece, is from late May to early October, with average air temperatures ranging from 70°F to 85°F and water temperatures around 75°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!