Arta, Spain offers 4 beaches perfect for sunbathing, surfing, swimming, and more. Arta, Balearic Islands, Spain, is known for the Sanctuary of Sant Salvador and the historic Arta Caves. The best time to travel to Arta, Spain, is from May to September, when the average air temperature ranges from 70°F to 85°F and the water temperature is around 72°F to 79°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!