Os Outeiros, Spain offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Os Outeiros is known for its proximity to the historic city of Santiago de Compostela and the scenic beauty of the Galician countryside. The best time to travel to Os Outeiros, Spain, is in late spring or early fall when the average air temperature is around 70°F (21°C) and the water temperature is approximately 66°F (19°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!