The annual Seaside Coastal Run returns for its eleventh edition on November 15th, this time at Semaphore South in South Australia. Organized by RUN YELLOW and dedicated to supporting the Australian Cancer Research Foundation (ACRF), participants will enjoy a picturesque coastal setting that offers scenic views of the shimmering sea alongside lush greenery. Race morning sees runners and walkers gathering under an overcast sky with temperatures around 18°C, creating a comfortable atmosphere as they await their seven o'clock start time. The event features three distances: 5km, 10km, and 21.1km (half marathon), each offering its own unique challenge along the coastal bike/walk path. The course is carefully measured at 10.55km for all participants to enjoy, ensuring a loop that brings runners back within approximately 5km of aid stations. A slight breeze with an average wind speed of about 13.5 km/h may create a chill but won't significantly impact performance given the mild temperatures and low humidity around 64%. The start area is conveniently located off South Tce, where participants can register their bibs starting from 6:15 am. An ID will be required to verify registration details before heading onto the course. Virtual runners are also welcome, with a fee of A$25 for those who wish to complete their distance on their own terms. The race is certified by AIMS (Association of International Marathons and Distance Races) for its 21km route. Semaphore South residents can be seen stretching along the path or preparing gear at designated pickup areas, adding a community feel to this event that has been running under the same measured course format since its inception. First-timers are encouraged to arrive early to familiarize themselves with the layout and ensure a smooth start to their running experience. This year's Seaside Coastal Run is not just about covering distance but also contributing to an important cause, making it a valuable event for those who value community involvement and personal achievement.
Races Offered
10km
Nov 15, 2026
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Distance —
10km
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Type —
Running
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07:00
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A$25.00
21.1km
Nov 15, 2026
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Distance —
21km
terrain
Type —
Running
timer
07:00
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A$35.00
5km
Nov 15, 2026
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Distance —
5km
terrain
Type —
Running
timer
07:00
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A$20.00
Virtual Run
Nov 15, 2026
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Distance —
Virtual Run
terrain
Type —
Running
timer
07:00
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A$25.00
Weather History
These values represent the 3-year monthly averages for November in Semaphore South.
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13.5° / 22.6°
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11.2° / 20.1°
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Humidity
63.9%
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About Semaphore South
Learn more about the host city, Semaphore South.
Semaphore South is a beachside suburb of Adelaide, in the City of Port Adelaide Enfield.
