Cham, Switzerland offers 1 beach perfect for sunbathing, surfing, swimming, and more. Cham, Canton of Zug, Switzerland, is known for its picturesque Lake Zug and the scenic Lorze River. The best time to travel to Cham, Switzerland, is from June to August, with average air temperatures around 20-25°C (68-77°F) and water temperatures in nearby lakes around 18-22°C (64-72°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!