Page 10 - California Half Marathon Calendar

December 13, 2026
500-1000 runners
Oxnard, California
December 13, 2026
100-500 runners
Roseville, California
Arroyo Creek Half Marathon 10k & 5k logo
December 17, 2026
1-100 runners
Simi Valley, California
December 19, 2026
1,000-10,000 runners
La Jolla, California
Cauliflow Runs Logo
December 19, 2026
100-500 runners
Huntington Beach, California
Better World Running Logo
December 20, 2026
100-500 runners
Riverside, California
December 20, 2026
100-500 runners
Camarillo, California
December 20, 2026
1-100 runners
San Diego, California
Santa's Reindeer Run - 5K, 10K, and Half Marathon Logo
December 20, 2026
100-500 runners
Costa Mesa, California
Last Lap Half Marathon 15k 10k & 5k logo
December 26, 2026
1-100 runners
Santa Monica, California
Cauliflow Runs Logo
December 31, 2026
100-500 runners
Long Beach, California
December 31, 2026
500-1000 runners
Castro Valley, California
January 1, 2027
100-500 runners
Castro Valley, California
January 9, 2027
100-500 runners
Riverside, California
January 9, 2027
1-100 runners
Escondido, California
January 9, 2027
100-500 runners
Long Beach, California
January 9, 2027
100-500 runners
San Diego, California
Rose Bowl Half Marathon logo
January 17, 2027
1,000-10,000 runners
Pasadena, California
January 17, 2027
100-500 runners
Woodside, California
January 17, 2027
1-100 runners
Carlsbad, 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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