Collonge Bellerive, Switzerland offers 1 beach perfect for sunbathing, surfing, swimming, and more. Collonge Bellerive is known for its proximity to Lake Geneva and the scenic Parc de la Nymphe. The best time to travel to Collonge-Bellerive, 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 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!