Swanage, United Kingdom offers 8 beaches perfect for sunbathing, surfing, swimming, and more. Swanage is known for its beautiful sandy beaches and as a gateway to the Jurassic Coast, a UNESCO World Heritage Site. The best time to travel to Swanage, United Kingdom, is from June to August, when the average air temperature is around 18-20°C (64-68°F) and the water temperature is approximately 16-18°C (61-64°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!