Sayreville, United States offers 1 beach perfect for sunbathing, surfing, swimming, and more. Sayreville, New Jersey, United States, is known for the Starland Ballroom, a popular music venue attracting numerous visitors. The best time to travel to Sayreville, United States, is in late spring (May), when the average air temperature is around 65°F (18°C) and the water temperature is approximately 60°F (16°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!