North Chicago, United States offers 3 beaches perfect for sunbathing, surfing, swimming, and more. North Chicago is known for the Naval Station Great Lakes, the United States Navy's only boot camp. The best time to travel to North Chicago is in late spring (May to June) when the average air temperature is around 60-70°F and Lake Michigan's 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!