Nefyn, United Kingdom offers 3 beaches perfect for sunbathing, surfing, swimming, and more. Nefyn is known for its scenic Nefyn & District Golf Club and the nearby Llŷn Peninsula. The best time to travel to Nefyn, United Kingdom, is from June to August, when the average air temperature is around 15-20°C (59-68°F) and the water temperature is approximately 14-16°C (57-61°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!