Whitstable, United Kingdom offers 4 beaches perfect for sunbathing, surfing, swimming, and more. Whitstable is known for its fresh oysters and the annual Whitstable Oyster Festival. The best time to visit Whitstable, United Kingdom, is from June to August when the average air temperature is around 18-22°C (64-72°F) and the sea temperature is approximately 16-19°C (61-66°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!