Guainos, Spain offers 1 beach perfect for sunbathing, surfing, swimming, and more. Guainos, Andalusia, Spain, is known for its proximity to the Sierra Nevada National Park and the Alpujarra region. The best time to travel to Guainos, 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!