El Prat de Llobregat, Spain offers 4 beaches perfect for sunbathing, surfing, swimming, and more. El Prat de Llobregat is known for Barcelona-El Prat Airport. The best time to travel to El Prat de Llobregat, Spain, is from May to September, with average air temperatures ranging from 20-28°C (68-82°F) and water temperatures around 20-25°C (68-77°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!