Poblado de Sancti Petri, Spain offers 1 beach perfect for sunbathing, surfing, swimming, and more. Poblado de Sancti Petri is known for its proximity to the historic Castle of Sancti Petri and the beautiful beaches of the Costa de la Luz. The best time to travel to Poblado de Sancti Petri, Spain, is from May to September, with average air temperatures around 75°F (24°C) and water temperatures around 72°F (22°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!