The best time to visit Newburyport is during the summer months, from June to August, when the weather is warm and sunny, making it ideal for exploring the town and its coastal attractions.During summer, the town is at its liveliest, with many outdoor activities available. You can enjoy strolls along the waterfront boardwalk, take boat trips out to Plum Island, or simply relax at one of the many outdoor cafes. The days are long, and the evenings are pleasant, great for dining al fresco.Families often find late spring or early autumn to be an excellent time to visit. May and September offer milder temperatures and fewer crowds, making it easier to enjoy attractions like the Custom House Maritime Museum or the Parker River National Wildlife Refuge without the peak summer bustle. The autumn foliage along the Merrimack River is particularly lovely.For couples seeking a quieter escape, the shoulder seasons of late spring (May-early June) or early autumn (September-early October) are ideal.