The best time to visit the Peggy Guggenheim Collection in Venice largely depends on your preference for crowds and weather. The peak tourist season, from June to August, offers warm weather but can be crowded. For a quieter experience and milder weather, consider the shoulder seasons of April to May and September to October. The low season, from November to February, sees fewer visitors but also comes with cooler temperatures and occasional flooding. To strike a balance between fewer crowds and pleasant weather, the shoulder seasons are ideal.