King's Lynn, United Kingdom offers 10 beaches perfect for sunbathing, surfing, swimming, and more. King's Lynn is known for its historic architecture, including the King's Lynn Minster and the Custom House. The best time to visit King's Lynn, United Kingdom, is from June to August, with average air temperatures around 18-22°C (64-72°F) and water temperatures 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!