Things to Do This Weekend in Costa Mesa, CA

HMOC Open House

In 6 days · Sun, Apr 19, 6:00 PM–10:00 PM UTC · Heritage Museum of Orange County · 3101 W Harvard St, Santa Ana, CA 92704, Santa Ana, CA

Good to Go Fair

In 5 days · Sat, Apr 18, 4:00 PM–8:00 PM UTC · Pretend City Children's Museum · 29 Hubble, Irvine, CA 92618, Irvine, CA · Ages Up to 5

El Salvador Community Center

El Salvador Community Center · 1825 W Civic Center, Santa Ana, CA

Library Program in Santa Ana, CA

Register this Summer 2026 via CSUF Open University

In 5 days · Sun, Apr 19, 7:00 AM–7:00 AM UTC · Cal State Fullerton · 800 N State College Blvd, Fullerton, CA 92831, Fullerton, CA

Albert Herring

In 5 days · Sun, Apr 19, 3:00 AM–5:00 AM UTC · Cal State Fullerton · 800 N State College Blvd, Fullerton, CA 92831, Fullerton, CA

Garfield Community Center

Garfield Community Center · 501 N. Lacy St, Santa Ana, CA

Library Program in Santa Ana, CA

Soo Kim: (Charlie sings in the quietest voice)

In 5 days · Sat, Apr 18, 6:00 PM–11:00 PM UTC · Cal State Fullerton · 800 N State College Blvd, Fullerton, CA 92831, Fullerton, CA

Carole Caroompas: Mystical Unions

In 5 days · Sat, Apr 18, 6:00 PM–11:00 PM UTC · Cal State Fullerton · 800 N State College Blvd, Fullerton, CA 92831, Fullerton, CA

K1 Speed Irvine

K1 Speed Irvine · 17221 Von Karman Ave, Irvine, CA

Grand Prix in Irvine, CA

San Diego Padres at Los Angeles Angels

In 6 days · Sun, Apr 19, 8:07 PM UTC · Angel Stadium · 2000 E Gene Autry Way, Anaheim, CA

Wildlife Wonders

In 6 days · Sun, Apr 19, 8:00 PM–11:00 PM UTC · Sherman Library & Gardens · 2647 East Coast Hwy, Corona del Mar, CA 92625, Corona del Mar, CA

Soco Farmers' Market

Soco Farmers' Market · 3315 Hyland Ave, Costa Mesa, CA

Farmers Market in Costa Mesa, CA

Family Night Sunday at THE RANCH Saloon

In 6 days · Apr 19 – Apr 21 · THE RANCH Restaurant & Saloon · 1025 E. Ball Rd., Anaheim, CA

Behind the Scenes Aquarium Tour

In 5 days · Sat, Apr 18, 9:00 PM–10:00 PM UTC · Ocean Institute · 24200 Dana Point Harbor Dr, Dana Point, CA 92629, Dana Point, CA

Costa Mesa Farmers' Market

Costa Mesa Farmers' Market · 88 Fair Dr, Costa Mesa, CA

Farmers Market in Costa Mesa, CA

Whale and Marine Life Tour

In 6 days · Sun, Apr 19, 4:30 PM–7:30 PM UTC · Ocean Institute · 24200 Dana Point Harbor Dr, Dana Point, CA 92629, Dana Point, CA · Ages Up to 5

Sea Star Feeding

In 5 days · Sat, Apr 18, 7:00 PM–7:35 PM UTC · Ocean Institute · 24200 Dana Point Harbor Dr, Dana Point, CA 92629, Dana Point, CA

Bosscat Kitchen & Libations

Bosscat Kitchen & Libations · 4647 MacArthur Blvd, Newport Beach, CA 92660, Newport Beach, CA

Arts Crafts in Newport Beach, CA

No Member’s Early Entry

In 6 days · Sun, Apr 19, 4:00 PM–5:00 PM UTC · Pretend City Children's Museum · 29 Hubble, Irvine, CA 92618, Irvine, CA

Community Beach Cleanup – Stand Up to Trash

In 5 days · Sat, Apr 18, 4:00 PM–6:00 PM UTC · Ocean Institute · 24200 Dana Point Harbor Dr, Dana Point, CA 92629, Dana Point, CA

Orange County Public Law Library

Orange County Public Law Library · 515 N. Flower St, Santa Ana, CA

Library Program in Santa Ana, CA

Jazz Festival

In 5 days · Sat, Apr 18, 3:00 PM–1:00 AM UTC · Fullerton College · Fullerton, CA

X-Out

In 4 days · Sat, Apr 18, 3:00 AM–5:00 AM UTC · Cal State Fullerton · 800 N State College Blvd, Fullerton, CA 92831, Fullerton, CA

Costa Mesa Branch Library

Costa Mesa Branch Library · 1855 Park Ave., Costa Mesa, CA

Library Program in Costa Mesa, CA

Spring Student Exhibitions | Group 4

In 5 days · Sat, Apr 18, 6:00 PM–11:00 PM UTC · Cal State Fullerton · 800 N State College Blvd, Fullerton, CA 92831, Fullerton, CA

Fresh Faces at foaSouth

In 6 days · Sun, Apr 19, 4:00 PM–3:00 AM UTC · foaSOUTH · 1006 S. Coast Highway, Laguna Beach, CA, 92651, Laguna Beach, CA

Santa Ana Public Library

Santa Ana Public Library · 26 Civic Center Plaza, Santa Ana, CA

Library Program in Santa Ana, CA

Adventure Sail

In 5 days · Sat, Apr 18, 5:00 PM–7:00 PM UTC · Ocean Institute · 24200 Dana Point Harbor Dr, Dana Point, CA 92629, Dana Point, CA · Ages Up to 5

Tidepool Hike

In 5 days · Sat, Apr 18, 10:00 PM–12:00 AM UTC · Ocean Institute · 24200 Dana Point Harbor Dr, Dana Point, CA 92629, Dana Point, CA

Karl Strauss Brewing Co - Costa Mesa

Karl Strauss Brewing Co - Costa Mesa · 901 S Coast Dr Ste A, Costa Mesa, CA

Brewery in Costa Mesa, CA

Squid Dissections

In 5 days · Sat, Apr 18, 5:30 PM–8:30 PM UTC · Ocean Institute · 24200 Dana Point Harbor Dr, Dana Point, CA 92629, Dana Point, CA

General Admission

In 5 days · Sat, Apr 18, 5:00 PM–10:00 PM UTC · Ocean Institute · 24200 Dana Point Harbor Dr, Dana Point, CA 92629, Dana Point, CA · Ages Up to 5

OC Fair & Event Center – Lot D

OC Fair & Event Center – Lot D · 88 Fair D, Costa Mesa, CA

Festivals Fairs in Costa Mesa, CA

Earth Day & Arbor Day Celebration

In 5 days · Sat, Apr 18, 3:30 PM–6:30 PM UTC · Crown Valley Park · 29751, Crown Valley Parkway Laguna Niguel, CA

SC Social Middle School Event: 5th Annual Color Run!

In 4 days · Sat, Apr 18, 12:00 AM–3:00 AM UTC · Vista Hermosa Sports Park · 987, Avenida Vista Hermosa San Clemente, CA · Ages 10–14

Kin Craft Ramen & Izakaya

Kin Craft Ramen & Izakaya · 16185 Brookhurst St, Fountain Valley, CA

Japanese Restaurant in Fountain Valley, CA

LAFC vs. San Jose Earthquakes

In 5 days · Sun, Apr 19, 7:00 AM–6:59 AM UTC · BMO Stadium · 3939 S Figueroa St, Los Angeles, CA, 90037, Los Angeles, CA

CAAM Connects with Feel Seen Wellness: A New Song: Langston Hughes in the West

In 5 days · Sat, Apr 18, 9:00 PM–10:30 PM UTC · CAAM · CA, Los Angeles, CA

Patriot Pool & Spa

Patriot Pool & Spa · 17392 Los Amigos Cir, Fountain Valley, CA

Swimming Water in Fountain Valley, CA

Self Care: Yoga

In 5 days · Sat, Apr 18, 6:00 PM–7:00 PM UTC · CAAM · CA, Los Angeles, CA

CAAM Scavenger Hunt

In 6 days · Sun, Apr 19, 9:00 PM–10:00 PM UTC · CAAM · CA, Los Angeles, CA

Downtown Santa Ana Farmers' Market

Downtown Santa Ana Farmers' Market · 307 N Spurgeon St, Santa Ana, CA

Farmers Market in Santa Ana, CA

Night of Wonder Annual Gala

In 4 days · Sat, Apr 18, 7:00 AM–6:59 AM UTC · Natural History Museum · 900 Exposition Blvd, Los Angeles, CA, 90037, Los Angeles, CA

Earth Day 2026

In 6 days · Sun, Apr 19, 4:00 PM–12:00 AM UTC · Natural History Museum of Los Angeles County · 900 Exposition Boulevard , Los Angeles, CA

Crean Mariners Branch Library

Crean Mariners Branch Library · 1300 Irvine Avenue., Newport Beach, CA

Library Program in Newport Beach, CA

LA City Spring Lifeguard Academy

In 6 days · Sun, Apr 19, 3:00 PM–12:00 AM UTC · EXPO Center · Los Angeles, CA

Fountain Valley Branch Library

Fountain Valley Branch Library · 17635 Los Alamos St., Fountain Valley, CA

Library Program in Fountain Valley, CA

Mesa Verde Branch Library

Mesa Verde Branch Library · 2969 Mesa Verde Drive East, Costa Mesa, CA

Library Program in Costa Mesa, CA

Newhope Library Learning Center

Newhope Library Learning Center · 122 N. Newhope, Santa Ana, CA

Library Program in Santa Ana, CA

University Park Branch Library

University Park Branch Library · 4512 Sandburg Way, Irvine, CA

Library Program in Irvine, CA