When should I sign up for an August Half Marathon?
As early as you can. 5 of these August Half Marathon races already have a price increase on the calendar, and 5 are open for entry right now.
Race calendar · August 2027 · California
August 2027 Half Marathon Races in California
Every Half Marathon in California in August 2027, all 5 of them, sorted by date. Dates, entry fees, finish-time stats from past results, and start-line maps.
5 Half Marathon races in August 2027
When in August
The August Race Weekends
Half Marathon races do not spread evenly across August. The busiest weekend is August 7 and August 8, with 2 of them.
By the numbers
The Biggest and Longest-Running
The August Half Marathon races that stand out on the numbers: the biggest field, and the longest unbroken run of editions.
August Half Marathon Races by City
Soonest Half Marathon Races in August
5 total Sat, Aug 7, 2027Green Valley Lake 5k/10k/& Half Marathon Green Valley Lake, CAFrom $40Details Sun, Aug 8, 2027Sundae Funday - Ice Cream Run 5K, 10K, and Half Marathon Long Beach, CAFrom $39Details Sat, Aug 14, 2027Redwood (Summer) Trail Run Oakland, CAFrom $60Details Sun, Aug 22, 2027Californian Dreamin 5K, 10K, & Half Marathon Long Beach, CAFrom $46Details Sat, Aug 28, 2027Night of the Running Dead 5K, 10K, 1 Miler, Half Marathon Long Beach, CAFrom $25Details
Common Questions About Running an August Half Marathon in California
How much does an August Half Marathon cost to enter?
The typical entry is $40, with paid entries running from $25 up to $60. Entry fees climb as race day gets closer, so the same race is usually cheapest the week it opens.
Are there trail Half Marathon races in California in August?
Yes, 2 races around California get you off the pavement: 1 is a trail race, and 1 mixes road and trail. Surfaces are not always published, so it is worth checking a specific race before you register.
Half Marathon Races in Other Months
July and September sit either side of August, which is where most people look next when a date does not fit.