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Upcoming Half Marathons Near Fountain Valley, CA

Browse all California Half Marathons in 2026 and 2027 by month and by City below. For each race, you’ll find the history of the half marathon and the course, the most recent year’s course maps, elevation profiles, runner reviews, pricing, and how to sign up.

We dedicate  hours every month searching for races to include in the California Half Marathons calendar. If you happen to see any half marathon not included, contact us at [email protected] to submit your race.

Filter California Half Marathons

Filter California Half Marathons

Seabreeze Half Marathon logo
May 22, 2026
1-100 runners
Long Beach, California
May 24, 2026
1-100 runners
Long Beach, California
May 25, 2026
1-100 runners
Laguna Hills, California
May 31, 2026
100-500 runners
Long Beach, California
Father's Day 5k, 10k, 15k, Half Marathon Long Beach
June 14, 2026
1-100 runners
Long Beach, California
June 14, 2026
100-500 runners
Long Beach, California
Summer Solstice 5k, 10k, 15k, Half Marathon
June 20, 2026
100-500 runners
Long Beach, California
Better World Running Logo
June 27, 2026
100-500 runners
Long Beach, California
July 3, 2026
1-100 runners
Long Beach, California
Better World Running Logo
July 4, 2026
100-500 runners
Long Beach, California
Endless Summer in the LBC 5K, 10K, and Half Marathon
July 11, 2026
100-500 runners
Long Beach, California
LBC Summer Breeze - 5K, 10K, 10 Miler and Half Marathon
July 12, 2026
100-500 runners
Long Beach, California
Cauliflow Runs Logo
July 19, 2026
500-1000 runners
Long Beach, California
July 25, 2026
500-1000 runners
Summer Day Half Marathon 15k 10k & 5k logo
July 26, 2026
100-500 runners
Long Beach, California
Summer Fun Half Marathon in Long Beach, CA, Oceanfront, Urban, Park Run
July 26, 2026
100-500 runners
Long Beach, California
August 9, 2026
1-100 runners
Long Beach, California
August 9, 2026
1-100 runners
Long Beach, California
Sundae Funday - Ice Cream Run 5K, 10K, and Half Marathon
August 9, 2026
100-500 runners
Long Beach, California
Better World Running Logo
August 15, 2026
100-500 runners
Long Beach, California

Running in California

FAQ

What are the most popular California half marathons?

The three most popular California half marathons are the Rock ‘n’ Roll San Diego Half Marathon with over 10,000 runners, the Napa to Sonoma Wine Country Half Marathon with over 6,800 runners, and the Monterey Bay Half Marathon with over 6,300 runners.

What’s the best half marathons in California for beginners in 2026?

There’s a ton of competition for the best California half marathons for beginners. But, we most frequently recommend the OC Marathon & Half Marathon, the Napa Valley Half Marathon, the Rock ‘n’ Roll San Diego Half Marathon and the Surf City Half Marathon as well produced races with beautiful courses and big crowds. If you’re willing to travel, here’s our full list of best half marathons for beginners.

Which months can I run a half marathon in California?

You can run a half marathon in California in January, February, April, May, June, July, August, September, October, November, and December.

What are the best California half marathons?
Every year, we rank our favorite and most scenic California half marathons. This year, we rated San Diego Beach & Bay, the OC Half MarathonSanta Rosa Half Marathon, and the Surf City Marathon amongst our favorites.

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