Saint Blaise, Switzerland offers 1 beach perfect for sunbathing, surfing, swimming, and more. Saint Blaise, Neuchatel, Switzerland, is known for its proximity to Lake Neuchatel and the scenic Jura Mountains. The best time to travel to Saint Blaise, Switzerland, is during the summer months of June to August, when the average air temperature is around 20-25°C (68-77°F) and the water temperature in nearby Lake Neuchatel is approximately 20°C (68°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!