The best time to go to Kelleys Island is between Memorial Day and Labor Day, when all businesses are fully operational and the weather is ideal for outdoor activities.This period offers warm temperatures and sunny skies, superb for enjoying the island's natural beauty. You'll find all shops, restaurants, and attractions open, providing a complete island experience. It's an excellent time for families and couples looking to enjoy everything Kelleys Island has to offer, from swimming to hiking.For those seeking a quieter experience with pleasant weather, the shoulder seasons of late May and early September are also good options. During these times, the crowds are smaller, but most establishments are still open, allowing for a more relaxed visit.