Vietri sul Mare, Italy offers 4 beaches perfect for sunbathing, surfing, swimming, and more. Vietri sul Mare is known for its vibrant and traditional ceramics. The best time to travel to Vietri sul Mare, Italy, is from May to September, with average air temperatures around 75°F (24°C) and water temperatures around 77°F (25°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!