Big Bear Vacations Blog · September 2026 Labor Day Weekend in Big Bear: Events, Lake Activities & Where to Stay September 2026 · Big Bear Vacations · 7 min read Labor Day weekend is the mountain’s last big exhale before fall settles in. This year the holiday falls Friday, September 4th through Monday, September 7th, and Big Bear is packing the calendar accordingly — an inaugural rodeo, a drone show over the water, a classic car show, and a lake that’s still warm enough for one final round of pontoons