The best time of year to visit Maine's beaches and coastal towns is between late June and late September, advises Great Maine Vacations. The peak travel time in coastal Maine lasts from July 4 through Labor Day, according to Travel and Leisure.
Vacationers who travel to coastal Maine in the weeks before July 4 and after Labor Day can benefit from lodging discounts and reduced crowds. However, visitors planning to travel to Maine's coast between October and Memorial Day should be aware that many businesses close for the off-season.
Ocean temperatures in Maine peak in mid-August but are still rather cold compared to the rest of the East Coast. For example, water temperatures in Old Orchard Beach typically range from 61 to 68 degrees during the second week of August.