Riva Trigoso, Italy offers 3 beaches perfect for sunbathing, surfing, swimming, and more. Riva Trigoso is known for its beautiful beaches and the nearby shipyard of Fincantieri. The best time to travel to Riva Trigoso, Italy, is from late May to early September, with average air temperatures around 75°F (24°C) and water temperatures around 72°F (22°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!