Rapperswil Jona, Switzerland offers 1 beach perfect for sunbathing, surfing, swimming, and more. Rapperswil Jona, Sankt Gallen, Switzerland, is known for the Rapperswil Castle and Knie's Children's Zoo. The best time to travel to Rapperswil-Jona, Switzerland, is from June to August, when the average air temperature is around 20°C (68°F) and the water temperature in Lake Zurich is approximately 21°C (70°F). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!
