Los Nietos, Spain offers 3 beaches perfect for sunbathing, surfing, swimming, and more. Los Nietos, Region of Murcia, Spain, is known for its proximity to the Mar Menor, a coastal saltwater lagoon popular for water sports and beach activities. The best time to travel to Los Nietos, Spain, is from June to September, with average air temperatures around 75-85°F (24-29°C) and water temperatures around 73-79°F (23-26°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!