A Illa de Arousa, Spain offers 26 beaches perfect for sunbathing, surfing, swimming, and more. A Illa de Arousa is known for its beautiful beaches, the Arousa Island Lighthouse, and the Carreiron Natural Park. The best time to travel to A Illa de Arousa, Spain, is from June to September, with average air temperatures around 70-80°F (21-27°C) and water temperatures around 68-75°F (20-24°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!