Lewiston, United States offers 6 beaches perfect for sunbathing, surfing, swimming, and more. Saint Etienne de Bolton is known for its proximity to Mount Orford National Park and the scenic beauty of the Eastern Townships. The best time to travel to Lewiston, United States, is in late spring or early fall when the average air temperature is around 60-70°F, and the water temperature in nearby rivers is approximately 50-60°F. Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!