Castello, Italy offers 1 beach perfect for sunbathing, surfing, swimming, and more. Castello, Sicily, Italy, is known for the Castello di Lombardia and the Duomo di Enna. The best time to travel to Castello, Italy, is in late spring (May to June) when the average air temperature is around 70°F (21°C) and the water temperature is approximately 68°F (20°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!