Porto Venere, Italy offers 6 beaches perfect for sunbathing, surfing, swimming, and more. Porto Venere is known for its picturesque harbor, the Church of St. Peter, and the Doria Castle. The best time to visit Porto Venere, Italy, is from May to September, with average air temperatures ranging from 70°F to 85°F and water temperatures between 68°F and 77°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!