The best time to visit Peru, Indiana, is during the summer months, from June to August, when the weather is warm and sunny, making it ideal for outdoor activities.During these months, you'll find average temperatures ranging from 20°C to 28°C (68°F to 82°F), providing comfortable conditions for exploring the town's attractions. This period also coincides with many local events and festivals, such as the Peru Circus City Festival, which brings a lively option to the area.Families often find this time particularly enjoyable due to the pleasant weather for visiting attractions like the Grissom Air Museum or enjoying the city's parks. The warm evenings are also great for a stroll along the Wabash River.For those looking for a quieter experience with pleasant weather, the shoulder months of May and September offer a good alternative.