The Seoul Marathon Festival returns on October 5, 2026, offering runners from around the globe an unforgettable experience in South Korea's vibrant capital. This annual event features four distinct race distances: full marathon (42.195 km), half marathon (21.0975 km), a scenic 10K run, and a family-friendly 5K fun run. Participants will enjoy the rich cultural backdrop of Seoul as they traverse through iconic landmarks such as Gwanghwamun Gate, Jogyesa Temple, and Bukchon Hanok Village. The race courses are designed to showcase both historical sites and modern architectural marvels that define this dynamic city. Registration for the event opens on August 10 at 10:00 AM local time with a special window reserved exclusively for residents of Gangnam-gu. Following this, full marathon and half marathon registrants can secure their spots starting from August 11 at the same hour. The next day marks the opportunity for runners interested in shorter distances to register, beginning at 10:00 AM on August 12. Finally, general registration opens to all remaining courses on August 13 at 10:00 AM. With limited spots available and a cap of 10,000 participants across all races, early sign-up is highly recommended for those looking to secure their place in this exciting event. Brimming with energy and excitement, the Seoul Marathon Festival promises an immersive journey through one of Asia's most captivating urban landscapes. The race day itself offers more than just a competitive challenge; it celebrates the spirit of running while immersing participants in the unique atmosphere of Seoul. Whether you're aiming for personal bests or simply enjoying the scenic routes, this event is designed to cater to runners at all levels and from various backgrounds.
Races Offered
10km
Oct 05, 2026
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10K
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$ 14.80
5km
Oct 05, 2026
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5K
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$ 7.40
Full
Oct 05, 2026
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42.2K
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$ 22.20
Half
Oct 05, 2026
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21.1K
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$ 14.80
Weather History
These values represent the 3-year monthly averages for October in Seoul.
thermostatTemperature
10.6° / 19.3°
wb_sunnyFeels like
8.9° / 18.5°
light_mode
Avg sunshine hours
7h 9m
water_drop
Avg rainfall
2.8 mm
ac_unit
Avg snowfall
—
air
Avg wind speed
7.7 km/h (Light breeze)
opacity
Sweat loss rate
Low
terrain
Course conditions
Firm and slightly soft
sunny
Max UV Index
Moderate (4.0)
humidity_mid
Humidity
77.9%
wb_twilight
Sunrise
06:40
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Sunset
17:54
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