The best times to visit Bay City are during the summer months, from June to August, and the early autumn, specifically September and October.Summer offers the warmest weather, with average temperatures in the low to mid-20s Celsius, making it ideal for enjoying outdoor activities along the Saginaw River and Lake Huron. This season is packed with festivals and events, such as the Bay City Fireworks Festival and various music events in Wenonah Park, a central green space by the river. Couples and families will find plenty to do, from boat tours on the Appledore Tall Ships to exploring the Bay County Historical Museum.Early autumn brings pleasant, cooler temperatures, typically ranging from 10 to 20 degrees Celsius, and often features beautiful fall foliage. This period is excellent for exploring the city's historic architecture, particularly around Centre Avenue, known for its well-preserved Victorian homes, without the larger crowds of summer. Art walks and harvest festivals are common, offering a relaxed experience for those who prefer a less bustling atmosphere.