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Upcoming Half Marathons Near San Diego, CA

Looking for a half marathon in San Diego, California? Browse the most comprehensive San Diego half marathon calendar with each race history, course description, difficulty rating, finisher ranges, scenery, and what the race is perfect for like family-friendly or lots of crowd support.

You’ll also be able to find must-know race logistics like pricing, start time, and course maps.

Half marathons are always coming and going. If you don’t see a race on the San Diego half marathon calendar, you can contact us at [email protected].

Filter California Half Marathons

Filter California Half Marathons

January 10, 2026
100-500 runners
San Diego, California
February 28, 2026
1-100 runners
San Diego, California
March 14, 2026
100-500 runners
San Diego, California
Moonlight Beach Half Marathon logo
March 15, 2026
1,000-10,000 runners
Encinitas, California
Billy Goat Mountain Climb logo
April 4, 2026
1-100 runners
Silverado, California
April 11, 2026
1,000-10,000 runners
San Diego, California
San Diego Race for Autism SUPERHERO logo
April 11, 2026
1,000-10,000 runners
San Diego, California
May 10, 2026
1-100 runners
San Diego, California
La Jolla Half Marathon & 5k logo
May 16, 2026
1,000-10,000 runners
San Diego, California
Black Mountain 50K, 25K & Half Marathon
June 20, 2026
1-100 runners
San Diego, California
America’s Finest City Half Marathon & 5K logo
August 16, 2026
1,000-10,000 runners
San Diego, California
October 3, 2026
1,000-10,000 runners
San Diego, California
November 8, 2026
1,000-10,000 runners
Coronado, California
November 14, 2026
1,000-10,000 runners
San Diego, California
December 19, 2026
1,000-10,000 runners
La Jolla, 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 2025?

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 Marathon, Santa Rosa Half Marathon, and the Surf City Marathon amongst our favorites.

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