Aci Castello, Italy offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Aci Castello is known for its Norman Castle, which offers stunning views of the Cyclopean Isles and the Ionian Sea. The best time to travel to Aci Castello, Italy, is from May to September, when the average air temperature is around 75°F (24°C) and the water temperature is approximately 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!