Gaeta, Italy offers 16 beaches perfect for sunbathing, surfing, swimming, and more. Gaeta is known for the Montagna Spaccata, the Sanctuary of the Santissima Trinita, and the medieval Castello Angioino-Aragonese. The best time to travel to Gaeta, Italy, is from May to September, when the average air temperature ranges from 70°F to 85°F and the water temperature is around 72°F to 79°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!