Santa Severa, Italy offers 3 beaches perfect for sunbathing, surfing, swimming, and more. Santa Severa is known for the Castello di Santa Severa, a stunning medieval castle located by the Tyrrhenian Sea. The best time to travel to Santa Severa, 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!