Santos Evos, Portugal offers 1 beach perfect for sunbathing, surfing, swimming, and more. Viseu, Portugal, is known for the Dao Wine Region and the Grão Vasco Museum. The best time to travel to Santos Evos, Portugal, is from June to September, when the average air temperature is around 75°F (24°C) and the water temperature is approximately 70°F (21°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!