Fall arrives differently in the San Bernardino Mountains. The air cools, the pines deepen in colour, and the shoreline at Lake Arrowhead Village fills with the sounds of oompah bands, clinking steins, and laughter that carries across the water. For a handful of weekends each autumn, one of Southern California’s most beloved seasonal traditions takes over Waterfront Park — and if you haven’t experienced Lake Arrowhead Oktoberfest yet, this is the year to change that.

This guide covers everything you need to know: the festival’s history, the full 2026 lineup, venue logistics, what to do in the surrounding area, and how to plan an overnight stay that makes the most of your time in the mountains.