Marken, Ireland offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Marken is known for its traditional wooden houses and vibrant cultural heritage. Leinster is known for the historic city of Dublin and the scenic Wicklow Mountains. Ireland is known for the Cliffs of Moher and the Giant's Causeway. The best time to travel to Marken, 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!