Castillo de Banos, Spain offers 1 beach perfect for sunbathing, surfing, swimming, and more. Castillo de Banos is known for its proximity to the Sierra Nevada National Park and the Alpujarras region. The best time to travel to Castillo de Banos, Spain, is from May to September, with average air temperatures around 75°F (24°C) and water temperatures near 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!