Lomba, Portugal offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Lomba, Porto, Portugal, is known for its proximity to the Douro Valley, famous for its Port wine production. The best time to travel to Lomba, Portugal, is from June to September, with average air temperatures around 70-80°F (21-27°C) and water temperatures around 68-75°F (20-24°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!