The best time to go to Belleville, Michigan, is during the summer months, from June to August, or in early autumn, particularly September, to enjoy the pleasant weather and outdoor activities.Summer in Belleville offers warm temperatures, ideal for spending time by Belleville Lake. You'll find opportunities for boating, fishing, and enjoying the public parks along the waterfront. The summer also features various local events and festivals, providing a lively experience for visitors.Early autumn, especially September, brings cooler, comfortable temperatures and the beautiful colours of changing foliage. This is a great time for leisurely walks or bike rides around the lake and through the surrounding natural areas.