Northwest Somerset, United States offers 1 beach perfect for sunbathing, surfing, swimming, and more. Northwest Somerset, Maine, United States, is known for the Appalachian Trail and the Bigelow Preserve. The best time to travel to Northwest Somerset, United States, is during late spring (May to June) when the average air temperature is around 60-70°F and water temperature 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!