San Felice Circeo, Italy offers 3 beaches perfect for sunbathing, surfing, swimming, and more. San Felice Circeo is known for the Circeo National Park and the ancient Torre dei Templari. The best time to travel to San Felice Circeo, 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!