The best time to go to Big Bear Lake depends entirely on what you'd like to do, with distinct peak seasons for winter sports and summer activities.For those keen on skiing, snowboarding, or other snow-related fun, the optimal time is typically from mid-December to March. During these months, the mountains are usually covered in snow, and the ski resorts, like Bear Mountain and Snow Summit, are fully operational. You'll find the best conditions for winter sports, though it's also the busiest and most expensive period.If you're interested in hiking, mountain biking, fishing, or watersports on the lake, then the summer months, from June to August, are ideal. The weather is warm and sunny, superb for enjoying the lake and surrounding trails. This is another popular time, so expect more people and higher prices for accommodation and activities.For a balance of pleasant weather and fewer crowds, consider visiting in late spring (April-May) or early autumn (September-October). In spring, the snow is melting, and the wildflowers begin to bloom, offering lovely hiking conditions.