The best time to visit Sandy Hook is during the summer months, from late June to early September, when the weather is ideal for beach activities and outdoor exploration.During this period, temperatures are consistently warm, averaging in the high 70s to low 80s Fahrenheit, with plenty of sunshine. This makes it great for swimming, sunbathing, and enjoying the various walking and biking trails. The ocean water is also at its warmest, inviting for a refreshing dip.Families will find this time particularly appealing as all park facilities, including lifeguard services at the beaches, are fully operational. Many local businesses and restaurants are also open with extended hours, providing ample dining and entertainment options.For couples looking for a more relaxed visit with pleasant weather but fewer crowds, the shoulder seasons of late May to early June or early to mid-September are also excellent choices.