Westgate on Sea, United Kingdom offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Westgate on Sea is known for its charming Victorian architecture and the beautiful West Bay and St. Mildred's Bay beaches. The best time to travel to Westgate on Sea, United Kingdom, is during the summer months of June to August, when the average air temperature is around 18-22°C (64-72°F) and the sea 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!