Magheradrumman, Ireland offers 1 beach perfect for sunbathing, surfing, swimming, and more. Magheradrumman is known for its proximity to the scenic Lough Swilly and the historic Grianan of Aileach in Ulster, Ireland. The best time to travel to Magheradrumman, Ireland, is from June to August, with average air temperatures around 15-20°C (59-68°F) and water temperatures around 14-16°C (57-61°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!