The best time to visit Sorrento, Maine, is during the summer months, from June to August, for the warmest weather and full access to all activities and attractions.During this period, the days are long and sunny, with average temperatures ranging from 20-25°C (68-77°F), making it ideal for outdoor pursuits like hiking, kayaking, and exploring the coast. All local businesses, restaurants, and tour operators are typically open and operating at full capacity.For those who prefer a slightly quieter experience with pleasant weather and beautiful autumn colours, early to mid-September is also a good option. The crowds begin to thin, but the weather remains mild enough for most outdoor activities, and the foliage starts to turn, offering stunning scenic views.Travellers looking for a serene escape often appreciate the shoulder seasons.