Rhossili, United Kingdom offers 5 beaches perfect for sunbathing, surfing, swimming, and more. Rhossili is known for its stunning Rhossili Bay, part of the Gower Peninsula, which is a designated Area of Outstanding Natural Beauty. The best time to visit Rhossili, United Kingdom, is from June to August, when the average air temperature is around 18°C (64°F) and the water temperature is approximately 16°C (61°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!