Retamar, Spain offers 3 beaches perfect for sunbathing, surfing, swimming, and more. Retamar, Andalusia, Spain, is known for its proximity to the Cabo de Gata-Nijar Natural Park. The best time to travel to Retamar, Spain, is from May to September, with average air temperatures ranging from 25°C to 30°C (77°F to 86°F) and water temperatures around 20°C to 24°C (68°F to 75°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!