Vila Marim, Portugal offers 1 beach perfect for sunbathing, surfing, swimming, and more. Vila Marim is known for its proximity to the Douro Valley, a UNESCO World Heritage Site famous for its wine production. The best time to travel to Vila Marim, Portugal, is from May to September, with average air temperatures ranging from 20°C to 30°C and water temperatures around 18°C to 22°C. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!