Marske by the Sea, United Kingdom offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Marske by the Sea is known for its proximity to the historic Captain Cook's Birthplace Museum and the scenic Cleveland Way National Trail. The best time to travel to Marske by the Sea, United Kingdom, is from June to August, with average air temperatures around 15-20°C (59-68°F) and sea temperatures around 14-17°C (57-63°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!