The best time to go to York Harbor is during the summer months, from June to August, when the weather is warm and all attractions are fully open.For those who enjoy classic beach holidays, July and August offer the warmest ocean temperatures, making them ideal for swimming and enjoying the sandy beaches like Long Sands and Short Sands. These months also see the town at its most active, with a full schedule of events and plenty of dining options available. It's a great time for families looking for a lively coastal experience with lots of activities for children.If you prefer a quieter visit with pleasant weather and fewer crowds, late May to early June or September to early October are excellent choices. The days are still generally sunny and comfortable for exploring the scenic coastline, walking the Cliff Walk, or visiting the Cape Neddick "Nubble" Lighthouse without the peak season bustle.