Folkestone, United Kingdom offers 1 beach perfect for sunbathing, surfing, swimming, and more. Folkestone is known for the Folkestone Harbour Arm, the Creative Quarter, and the Folkestone Triennial. The best time to travel to Folkestone, United Kingdom, is from June to September, with average air temperatures around 15-20°C (59-68°F) and sea temperatures around 15-18°C (59-64°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!