The best time to visit Perry, Maine, is during the summer months, from June to August, when the weather is warm and pleasant, and all local attractions are open.During this period, you'll find average temperatures ranging from 18°C to 24°C (65°F to 75°F), great for outdoor activities like hiking, kayaking, and exploring the coastline. The longer daylight hours also mean more time to enjoy everything the region has to offer, from whale watching tours to visiting Roosevelt Campobello International Park.The shoulder seasons, May and September, also offer a lovely experience with fewer crowds and cooler temperatures, typically between 10°C and 18°C (50°F to 65°F). While some seasonal businesses might have reduced hours, you can still enjoy the natural beauty and outdoor pursuits, especially if you appreciate a more tranquil visit.