Neptune Township, United States offers 1 beach perfect for sunbathing, surfing, swimming, and more. Neptune Township, New Jersey, United States, is known for its proximity to the historic Ocean Grove community and the iconic Asbury Park Boardwalk. The best time to travel to Neptune Township, United States, is during the summer months of June to August, when the average air temperature is around 75°F (24°C) and the ocean water temperature is approximately 70°F (21°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!