Whenever you're dreaming of cosmopolitan cities, glistening lakes, and verdant mountain vales—that's the best time to visit Switzerland. If the mood strikes you to dip into Lake Geneva in the summertime, or cozy up in the winter for a dinner of raclette-covered everything, you need to go to Switzerland as soon as you can. As for the actual logistics of how to time your visit to this landlocked European country of centuries-old culture and commerce, it all depends on what you want to get out of your trip.