Summer Solstice Run Half Marathon
Race Day Weather
Mild conditions, steady crosswind
Runners will face temperatures starting at 63°F and peaking at 66°F, with high humidity at 79%. Light winds from the SW at 11 mph will provide a mix of headwind and tailwind effects throughout the loop. To optimize performance, runners should consider pacing conservatively in the early laps and stay hydrated to combat humidity.
Pace Calculator
Get forecast alerts for Summer Solstice Run Half Marathon
We'll text or email you when the forecast shifts — so you can adjust gear, pacing, and strategy. Max one per day.
Get your personalized Summer Solstice Run Half Marathon race plan
Weather-adjusted pacing, per-mile terrain splits, fueling timeline with aid stations, packing checklist, carb tracker, spectator guide — all personalized to your goal and race-day conditions.
Race Info
The Summer Solstice Run is a half marathon, 10K, and 5K held along the beach path near 5400 E Ocean Blvd in Long Beach, California. The half marathon uses the same roughly 4.4-mile Long Beach coastline loop that organizer CaliFlow Runs uses for several other local races, completed three times to reach the full distance. The event began in 2025 as an evening 5K/10K glow run; the half marathon distance and a 7:00 AM morning start were added starting with the 2026 edition.
