Lancaster, United Kingdom offers 7 beaches perfect for sunbathing, surfing, swimming, and more. Lancaster is known for Lancaster Castle and the Ashton Memorial in Williamson Park. The best time to travel to Lancaster, United Kingdom, is from June to August, with average air temperatures around 15-20°C (59-68°F) and water temperatures in nearby coastal areas around 15-17°C (59-63°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!