Cologny, Switzerland offers 1 beach perfect for sunbathing, surfing, swimming, and more. Cologny is known for the Villa Diodati, where Mary Shelley conceived the idea for "Frankenstein." The best time to travel to Cologny, Switzerland, is from June to August, when the average air temperature is around 20-25°C (68-77°F) and the water temperature in Lake Geneva 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!
