Best events in
Diamond Bar

For events and things to do in Diamond Bar, CA, the local calendar is defined by community-focused programming and a relaxed, suburban pace. Many gatherings are organized by the city and take place in its numerous parks, which serve as the primary social hubs for residents. For more varied nightlife and a broader range of dedicated performance venues, locals often explore the options in neighboring Los Angeles and Orange County cities.

The city's social rhythm revolves around its public parks, with Summitridge Park in particular hosting free concerts and seasonal festivals.
A full calendar of family-oriented activities includes annual traditions like the Winter Snow Fest, an Earth Day Celebration, and the Juneteenth Community Festival.
Live music seekers can find performances at nearby venues like the Royal Vista Club, a popular spot located in the adjacent city of Walnut.

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Popular in Diamond Bar

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Brunch with New Friends: Diamond Bar

Sunday • 12:00 PM + 1 more

Restaurant of the Day

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SoCal HHW Information Exchange (HHWIE) - Diamond Bar

Thu, Nov 5 • 8:00 AM

Diamond Bar Center

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4th Annual Art Can Share Love Youth Art Festival

Sun, Nov 8 • 2:00 PM

Diamond Bar Center

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The 2027 Employment Law Update: Written by Actual Humans - Not AI (Yet!)

Thu, Nov 19 • 9:00 AM

Diamond Bar Center

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Believe in Magic Again: A Holiday Event and Book Talk with David Pomeranz

Tue, Dec 1 • 6:00 PM

Diamond Bar Center

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2027 San Gabriel Valley EAC Membership

Fri, Jan 1 • 12:00 AM

San Gabriel Valley Employer Advisory Council

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4th Annual Employment Expo presented by ESGV SELPA CAC

Sat, Jan 23 • 9:00 AM

Chaparral Middle School

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Brunch with New Friends: Diamond Bar

Sunday • 12:00 PM + 1 more

Restaurant of the Day

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SoCal HHW Information Exchange (HHWIE) - Diamond Bar

Thu, Nov 5 • 8:00 AM

Diamond Bar Center

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4th Annual Art Can Share Love Youth Art Festival

Sun, Nov 8 • 2:00 PM

Diamond Bar Center

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The 2027 Employment Law Update: Written by Actual Humans - Not AI (Yet!)

Thu, Nov 19 • 9:00 AM

Diamond Bar Center

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Believe in Magic Again: A Holiday Event and Book Talk with David Pomeranz

Tue, Dec 1 • 6:00 PM

Diamond Bar Center

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2027 San Gabriel Valley EAC Membership

Fri, Jan 1 • 12:00 AM

San Gabriel Valley Employer Advisory Council

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4th Annual Employment Expo presented by ESGV SELPA CAC

Sat, Jan 23 • 9:00 AM

Chaparral Middle School

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(ONLINE) Women on the Move with Ann Patchett

Today • 11:30 AM EDT

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MENTORSHOP: Using Claude AI to Build a SaaS Site in about a Week

Tomorrow • 12:00 PM PDT

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Turn Your Ideas Into Income

Tomorrow • 10:00 AM EDT

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No Title, No Permission, No Problem: Harnessing the Power of Influence

Thu, Nov 5 • 1:00 PM GMT

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Lean Global Connection 2026

Thu, Nov 12 • 2:00 PM UTC

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The Walrus Talks at Home: Canada After America

Thu, Nov 12 • 7:00 PM EST

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The MI5 Archive: Official Secrets

Fri, Nov 27 • 2:00 PM GMT

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Washington Crossing the Delaware / The Crossing - Film History Livestream

Sat, Dec 19 • 8:00 PM EST

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(ONLINE) Women on the Move with Ann Patchett

Today • 11:30 AM EDT

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MENTORSHOP: Using Claude AI to Build a SaaS Site in about a Week

Tomorrow • 12:00 PM PDT

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Turn Your Ideas Into Income

Tomorrow • 10:00 AM EDT

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No Title, No Permission, No Problem: Harnessing the Power of Influence

Thu, Nov 5 • 1:00 PM GMT

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Lean Global Connection 2026

Thu, Nov 12 • 2:00 PM UTC

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The Walrus Talks at Home: Canada After America

Thu, Nov 12 • 7:00 PM EST

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The MI5 Archive: Official Secrets

Fri, Nov 27 • 2:00 PM GMT

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Washington Crossing the Delaware / The Crossing - Film History Livestream

Sat, Dec 19 • 8:00 PM EST

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Business & Professional events

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Lean Six Sigma Green Belt Certification Bootcamp in Diamond Bar, CA

Tue, Nov 3 • 9:00 AM + 4 more

1370 Valley Vista Dr ste 200

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The 2027 Employment Law Update: Written by Actual Humans - Not AI (Yet!)

Thu, Nov 19 • 9:00 AM

Diamond Bar Center

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2027 San Gabriel Valley EAC Membership

Fri, Jan 1 • 12:00 AM

San Gabriel Valley Employer Advisory Council

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Wedding & Event Expo 2027

Sun, Feb 28 • 11:00 AM

Diamond Bar Center

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Lean Six Sigma Green Belt Certification Bootcamp in Diamond Bar, CA

Tue, Nov 3 • 9:00 AM + 4 more

1370 Valley Vista Dr ste 200

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The 2027 Employment Law Update: Written by Actual Humans - Not AI (Yet!)

Thu, Nov 19 • 9:00 AM

Diamond Bar Center

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2027 San Gabriel Valley EAC Membership

Fri, Jan 1 • 12:00 AM

San Gabriel Valley Employer Advisory Council

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Wedding & Event Expo 2027

Sun, Feb 28 • 11:00 AM

Diamond Bar Center

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From nearby cities

MEAN GHOULS - Paint & Sip Event at Haven Haus (LA VERNE)

Thursday • 6:00 PM

Haven Haus Cafe

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Luis Angel, El Jerry Coronel y Mas

Sat, Nov 7 • 5:30 PM

Santa Fe Springs Swap Meet

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Winner's Circle Pro: Diplomatic Immunity

Sat, Nov 7 • 6:00 PM

The Derby Room Pomona at Fairplex

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CalNonprofits 2026 Policy Conference

Tue, Nov 17 • 8:30 AM

The Westin Anaheim Resort

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PURO ROCKERO ' BAJO LAS ESTRELLAS '

Sat, Nov 21 • 7:00 PM

Pico Rivera Sports Arena

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FURRY EMO NIGHT

Sat, Nov 28 • 7:00 PM

The Compound by Dirt Dog

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B.I.G. New Year’s Eve Ballroom Party at the DoubleTree Hotel Ontario

Thu, Dec 31 • 8:00 PM

Doubletree by Hilton Ontario Airport- Empire Ballroom- NYE EVENT

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Na Hoa Live Concert

Fri, Apr 9 • 4:00 PM

601 W McKinley Ave

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MEAN GHOULS - Paint & Sip Event at Haven Haus (LA VERNE)

Thursday • 6:00 PM

Haven Haus Cafe

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Luis Angel, El Jerry Coronel y Mas

Sat, Nov 7 • 5:30 PM

Santa Fe Springs Swap Meet

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Winner's Circle Pro: Diplomatic Immunity

Sat, Nov 7 • 6:00 PM

The Derby Room Pomona at Fairplex

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CalNonprofits 2026 Policy Conference

Tue, Nov 17 • 8:30 AM

The Westin Anaheim Resort

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PURO ROCKERO ' BAJO LAS ESTRELLAS '

Sat, Nov 21 • 7:00 PM

Pico Rivera Sports Arena

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FURRY EMO NIGHT

Sat, Nov 28 • 7:00 PM

The Compound by Dirt Dog

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B.I.G. New Year’s Eve Ballroom Party at the DoubleTree Hotel Ontario

Thu, Dec 31 • 8:00 PM

Doubletree by Hilton Ontario Airport- Empire Ballroom- NYE EVENT

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Na Hoa Live Concert

Fri, Apr 9 • 4:00 PM

601 W McKinley Ave

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Frequently asked questions about Diamond Bar

What are some family-friendly events in Diamond Bar?

The city of Diamond Bar organizes numerous events perfect for all ages. These are often held in community parks and include annual traditions like the Winter Snow Fest in December, a Breakfast with the Bunny celebration, and an Earth Day event in April.

Where can I find free things to do in Diamond Bar?

Summitridge Park is a key destination for free community entertainment. It hosts the city's annual Concerts in the Park series on select evenings in July, and public gatherings like the Juneteenth Community Festival also offer free admission.

Are there many outdoor events in Diamond Bar?

Yes, the city's extensive park system is central to its event calendar, especially Summitridge Park. This space hosts seasonal festivals, open-air concerts, and other community gatherings that take advantage of the area's green spaces and popular trails.

What's the live music scene like around Diamond Bar?

The local music scene is fairly quiet, so residents often look to neighboring areas. The Royal Vista Club in nearby Walnut is a notable spot for live music, drawing crowds from Diamond Bar for its performances and events.

How can I find food and drink events in the area?

The annual Diamond Bar Restaurant Week in October is the highlight of the local culinary calendar. This event celebrates the city's dining scene, with various establishments participating. The Diamond Bar Golf Course also hosts occasional food-focused gatherings.

Does Diamond Bar have a lively nightlife?

Diamond Bar offers a relaxed, suburban pace rather than a bustling nightlife scene. For late-night entertainment, comedy clubs, or a wider variety of bars, residents typically explore the more extensive options in nearby Los Angeles and Orange County cities.

What kind of community events happen at the Diamond Bar Center?

The Diamond Bar Center is a primary hub for city-organized community functions. Adjacent to Summitridge Park, it serves as a key venue for civic gatherings, seasonal festivals, and celebrations that cater to local residents and their families.

What are the best date night ideas in Diamond Bar?

A nice dinner during Diamond Bar Restaurant Week offers a great local option. For other outings, consider a special event at the Diamond Bar Golf Course or catching a performance at the Royal Vista Club in Walnut for live music.