Big Bear Lake, United States offers 6 beaches perfect for sunbathing, surfing, swimming, and more. Big Bear Lake is known for Big Bear Mountain Resort and Big Bear Lake itself, offering skiing, snowboarding, and various water activities. The best time to travel to Big Bear Lake is from June to August, with average air temperatures around 75°F (24°C) and water temperatures around 65°F (18°C). Sandee provides detailed maps, photos, and reviews from fellow beachgoers to help you Choose Your Beach™ and plan your perfect beach vacation!