Saint Vaast la Hougue, France offers 2 beaches perfect for sunbathing, surfing, swimming, and more. Saint Vaast la Hougue, Normandy, France, is known for the UNESCO-listed Vauban fortifications and the nearby Tatihou Island. The best time to travel to Saint Vaast la Hougue, France, is from June to September, when the average air temperature is around 18-22°C (64-72°F) and the water 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!