July in California brings the heat, but it also brings some incredible running opportunities if you know where to look. With 42 half marathons scheduled across the state this month, there is a race for every kind of runner. Whether you are aiming for your very first 13.1 or adding another finish line to your long-term journey, July offers everything from shaded redwood trails to breezy coastal roads. The key to summer racing in California is choosing your terrain and start times wisely. Coastal races offer a natural cooling breeze, while evening runs and shaded trails provide a break from the midday sun. We have highlighted some of the best options to help you plan your next adventure.
2026 Napa to Sonoma Wine Country Half Marathon & Rosé 5K
If you are looking for a scenic, flat road race that doubles as a weekend getaway, the 2026 Napa to Sonoma Wine Country Half Marathon & Rosé 5K is a true standout. Taking place on July 25, 2026, this point-to-point course starts in Napa and finishes in Sonoma, guiding runners through miles of beautiful vineyards and rolling countryside. The course is flat and USATF certified, making it a great choice for both first-timers looking for an approachable route and experienced runners chasing a steady pace. With a quality score of 78, it is highly rated by the community for its organization and atmosphere. The post-race celebration is exactly what you would hope for in wine country, making the miles feel incredibly rewarding. It is the perfect race to plan a trip around, blending a solid morning effort with a relaxing afternoon of recovery.
Davis Moonlight Run
Beating the July heat means getting creative with your start times, and the Davis Moonlight Run offers a brilliant solution. Scheduled for Saturday night, July 18, 2026, this event lets you trade the early morning alarm clock for an evening start line. The flat road course makes it incredibly welcoming for runners tackling their first half marathon, while the nighttime atmosphere brings a fun, energetic shift to the usual racing routine. Earning a solid pick score of 58, the event is known for its festive community feel. The race starts at Schilling Robotics and features a flat, fast route through Davis. Running under the stars is a unique experience that completely changes the dynamic of the distance. If you are not a morning person or just want to try something different this summer, this night race is a fantastic way to earn your next finisher medal.
Shoreline Marathon
For runners who want to keep things cool and coastal, the half marathon at the Shoreline Marathon in Ventura is a beautiful option. Taking place on July 12, 2026, this flat road course keeps you right by the water, offering a welcome ocean breeze that makes summer racing much more comfortable. With a quality score of 55, it is a solid pick for anyone looking for a straightforward, scenic route without the challenge of serious elevation. The flat terrain is especially supportive for beginners finding their rhythm over 13.1 miles, but it is just as enjoyable for veterans who want a relaxed, steady run. Ventura provides a laid-back, welcoming backdrop for a race weekend. You can focus on your pace, enjoy the sound of the waves, and celebrate your finish with a walk on the beach.
San Lorenzo River Trail Run
If you prefer dirt under your shoes and shade over your head, the San Lorenzo River Trail Run in Santa Cruz is a stunning summer escape. Held on July 11, 2026, this race trades pavement for a mixed terrain course featuring rolling hills. The route takes you through ancient, towering coastal redwoods, lush stream canyons, and open meadows. You will even cross the San Lorenzo River multiple times, adding a true sense of adventure to the miles. Earning a solid pick score of 52, this race is perfect for runners looking to step off the roads and experience the natural beauty of California trails. While the rolling terrain requires a bit more effort, the breathtaking scenery and the natural cooling effect of the forest make it entirely worth it. It is a fantastic way to challenge yourself and enjoy a completely different kind of half marathon journey.
Red, White & Blue 5k, 10k, 15k, Half Marathon
Keep the holiday weekend momentum going with the Red, White & Blue 5k, 10k, 15k, Half Marathon in Van Nuys. Taking place on July 5, 2026, at Lake Balboa and Woodley Park, this event is a low-stress, community-focused way to log 13.1 miles. The flat road course is highly approachable, making it a great environment for first-timers or anyone looking for a friendly, supportive atmosphere. Rated as a solid pick with a score of 49, the race focuses on the simple joys of running together. Registration includes custom finisher medals, free photos, and free videos to help you remember the day. The park setting provides a pleasant, paved route that lets you settle into a comfortable pace. It is a wonderful opportunity to celebrate the summer, connect with other local runners, and add another fun finish line to your tracking log.
Stars and Stripes 5k, 10k, 15k, Half Marathon
Kick off your holiday weekend early at the Stars and Stripes 5k, 10k, 15k, Half Marathon in Long Beach. Scheduled for Friday, July 3, 2026, this flat road race offers a fantastic way to earn your miles before the weekend barbecues begin. Earning a solid pick score of 40, this event is designed as a fun run and walk, emphasizing participation and community over intense competition. The 7:30 AM start helps you beat the worst of the summer heat, while the flat course ensures a smooth, manageable effort whether this is your first half marathon or your fiftieth. Runners can look forward to custom finisher medals, free photos, and free videos to capture the morning. Long Beach always provides a great running environment, and this race is a supportive, festive way to start your July racing calendar.
LBC Summer Breeze – 5K, 10K, 10M, and Half Marathon
Later in the month, Long Beach hosts another great coastal option with the LBC Summer Breeze – 5K, 10K, 10M, and Half Marathon. Taking place on July 12, 2026, this race starts right at Granada Beach, offering that essential ocean air to help keep you cool. The flat road course is perfect for runners who want a predictable, steady surface to test their training. Starting by the water provides a beautiful backdrop and a relaxed vibe that makes the miles feel a little easier. Whether you are building up your endurance or just looking for a fun morning out with the local running community, this event delivers a straightforward, enjoyable experience. The flat terrain is gentle on the legs, making it an encouraging choice for newer runners while still offering a great morning workout for seasoned half marathoners.
How to Choose Your July Half Marathon
Choosing from the 42 half marathons in California this July comes down to how you want to handle the summer weather. If you love the energy of a classic road race, look toward coastal cities like Ventura or Long Beach where the ocean breeze naturally cools the course. If you want to avoid the sun entirely, a night event like the Davis Moonlight Run offers a completely different and fun race experience. For those who prefer nature, heading into the shaded redwoods of Santa Cruz provides a beautiful, challenging alternative to the pavement. Think about what sounds the most fun for you right now. Whether you want a flat, fast morning by the beach or a rolling adventure through the trees, the right race is out there. Pick the one that makes you excited to train, and we will see you at the start line. Explore all California half marathons to find your perfect fit.