Big Bear In September is the Start of Fall

Big Bear in September offers peaceful afternoons and tranquil evenings. The summer crowds have left for the summer, and it is just you and the forest when visiting Big Bear in September.

After a long and hot summer in the city, you can’t beat getting up to the mountains for some fresh air. All of the main summer attractions are still open just without the crowds.

Find the best alpine trails as you climb to the summit and overlook the San Bernardino National Forest. Big Bear Lake is still warm, and you can cool off with a refreshing float at one of the sandy beaches near the dam. Whichever experiences you are looking for, Big Bear always serves up a great adventure!

Big Bear Lake is open for boating and recreational activities on the water.

As far as Big Bear weather in September, the average high temperature is 74 degrees Fahrenheit while the average low temperate is 42 degrees Fahrenheit.  The water temperature in the Lake is starting to cool off and sits around 66 degrees Fahrenheit.

Top Events happening in Big Bear during September:

OKTOBERFEST

September 6 – November 8

The Big Bear Lake Oktoberfest 2025 is back for its 55th year, promising a fun-filled celebration where the party lasts all season long! Starting on Saturday, September 6th, and running every weekend through November 8th, this long-running festival brings together lively music, traditional German food, craft beers, and festive activities in the beautiful mountain setting of Big Bear Lake. Whether you’re coming with friends or family, Oktoberfest offers a great way to enjoy good times, great flavors, and a spirited atmosphere for weeks on end.

Summit Bike Park

Summit Bike Park in Big Bear Lake offers premier mountain biking experiences throughout September 2025. Located at Snow Summit, the park features lift-served, gravity-fed trails suitable for riders of all skill levels. Operating hours are Friday through Sunday, with lift access from 9:00 AM to 4:00 PM. The park boasts a variety of trails, including the newly developed “10-Ply,” a 1.5-mile black diamond downhill trail that debuted in late summer. Additionally, the park hosts the Grizzly 100 & Big Bear MTB Gran Fondo on September 13, a significant event in the mountain biking community.

Big Bear Farmers Market

Tuesday Morning Market:
Held every Tuesday from 8:30 AM to 1:00 PM at the Big Bear Lake Convention Center (42900 Big Bear Blvd), this market is a long-standing tradition in the area. Visitors can explore a variety of fresh fruits, vegetables, flowers, handmade crafts, and artisanal goods. It’s a great spot to enjoy the crisp mountain air while supporting local vendors.

Friday Evening Market:
On Fridays from 3:00 PM to 8:00 PM, the Friday Evening Market takes place at Ski Beach Park (41220 Park Ave). This lakeside market offers a relaxed atmosphere with fresh produce, hot food vendors, live music, and sunset views over Big Bear Lake. It’s the perfect way to wind down the week with family and friends.

HIGH ALTITUDE TRAINING

Big Bear Lake is a premier destination for high-altitude training in September. Situated at an elevation of 6,752 feet (2,058 meters), the area offers athletes a unique environment to enhance endurance and performance .

The Big Bear High Altitude Training Center (BBHATC) provides specialized facilities, including VO₂ max testing, hypoxic chambers, and access to a full gym with unlimited group yoga and fitness classes . The center’s elevation simulates conditions found at higher altitudes, aiding in the development of red blood cells and improving oxygen efficiency. Additionally, the center offers cryotherapy sessions and discounts on golf simulator rentals.

Helicopter Tours

Available Year-Round

Head to the Big Bear Airport and lift off over the mountains on a scenic helicopter tour. The helicopter has a capacity for you, 2 friends, and of course the pilot.

I have done the tour before and can say it is amazing. You get to see views of Big Bear that you didn’t know even exist. The tour brings you over alpine lakes, waterfalls, and dives down into scenic valleys.

ACTION ZIPLINE & SEGWAY TOURS

For action-packed adrenaline check out doing a zip line experience with Action Tours California! This is a scenic way to learn about the specific nature of the National Forest while enjoying the thrill of flying on 9 different choice zip lines. Get a new kind of high with this high-altitude fun!

Sound Meditation in Big Bear (Retreat)

In September 2025, Big Bear Lake offers a serene environment for sound meditation enthusiasts seeking relaxation and rejuvenation. The crisp mountain air and tranquil forest setting create an ideal backdrop for immersive sound healing experiences.

One notable event is the 3-Day Reset Yoga Retreat at Chateau Big Bear, scheduled from September 19 to 21. This retreat combines yoga, meditation, sound healing, and guided nature walks to help participants find calm amidst the chaos of daily life. Attendees can also enjoy spa treatments and healthy meals, enhancing their holistic wellness journey.

Additionally, the Forest Sound Bath at SkyFest Big Bear, taking place on September 6, offers a unique opportunity to experience sound healing amidst the natural beauty of the forest. This event is part of a larger festival that celebrates the connection between nature and wellness.

WEEKLY LOCAL EVENTS IN BIG BEAR:

TUESDAYS: BIG BEAR FARMERS MARKET

WEDNESDAYS: WYATT’S COUNTRY WEDNESDAYS

THURSDAYS: OPEN MIC AT ITH BIG BEAR 

EVERYDAY: YOGA CLASSES at MOUNTAIN YOGA CENTER

Big Bear Lake is Southern California’s ultimate four-season mountain town. Plan on having a fantastic time with whichever experiences you embark on and enjoy your time in the mountains.

Check out upcoming Big Bear events for your next adventure.

For the live music scene, check out The Cave for the best venue and upcoming shows.

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