Lake Bluff, United States offers 1 beach perfect for sunbathing, surfing, swimming, and more. Lake Bluff is known for its charming small-town atmosphere and proximity to Lake Michigan beaches. The best time to travel to Lake Bluff, United States, is in late spring or early fall when the average air temperature is around 60-70°F and the water temperature in Lake Michigan 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!