Alajero, Spain offers 5 beaches perfect for sunbathing, surfing, swimming, and more. Alajero, Canary Islands, Spain, is known for Garajonay National Park, a UNESCO World Heritage Site. The best time to travel to Alajero, Spain, is from May to October, with average air temperatures around 70-80°F (21-27°C) and water temperatures around 70-75°F (21-24°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!