Las Arenas, Spain offers 1 beach perfect for sunbathing, surfing, swimming, and more. Las Arenas, Canarias, Spain, is known for its proximity to the stunning natural landscapes of Teide National Park and the vibrant cultural attractions of Santa Cruz de Tenerife. The best time to travel to Las Arenas, Spain, is from June to September, with average air temperatures around 75°F (24°C) and water temperatures near 70°F (21°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!