Presa, Portugal offers 1 beach perfect for sunbathing, surfing, swimming, and more. Santarem, Portugal, is known for the Gothic Church of Grace and the National Agricultural Fair. The best time to travel to Presa, Portugal, is during late spring or early fall when the average air temperature is around 70°F (21°C) and the water temperature is approximately 64°F (18°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!