Half marathonRoad🇰🇷 Seoul, South Korea

Seoul Half Marathon

Sunday, 25 April 2027Estimated dateIn 6 months · Start 07:30

Starts on Gwanghwamun Square beneath the royal palace gate and runs west across the Han River side of the city to finish at Sangam World Cup Park, a largely flat urban course organized by the Chosun Ilbo.

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Facts checked 19 Oct 2026 against seoulhalfmarathon.com, runningwikii.com.

Elevation gain

60 m

Flat · ↓ 70 m

Start altitude

33 m

above sea level, from terrain data

Temp at start

10°C

Peaks around 18°C

Entry fee

≈ $55

Open entry

Finishers

—

typical year

Course

Point to point

2.5h cut-off

Getting thereFly into GMP (Seoul), about 16 km from the start

Course map

A detailed route is not available for this race yet. The marker shows the race location.

Elevation profile

Flat: about 60 m of climbing and 70 m of descent. A detailed profile isn’t available for this race yet.

Race-day weather

At start

10°C

Peak during race

18°C

Humidity

60%

Chance of rain

Wind

10 km/h

Race day in past years

Historical averages for 25 April ±3 days, 2016–2025, from 07:30 for 5 hours (70 days sampled). Source: Open-Meteo / ERA5.

Finish times by age group

No data yet. We’re collecting age-group results race by race.

Runner reviews

What time could you run here?Adjust your goal time for this course’s hills and typical race-day weather.Race time calculator →

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Show your runners the course facts and race-day weather. Paste this code into your site; it displays the badge below and links to this page. It updates automatically when the race details change.

<a href="https://irun42.com/race/seoul-half" title="Seoul Half Marathon on iRun42"><img src="https://irun42.com/badge/seoul-half.svg" width="300" height="120" alt="Seoul Half Marathon: course, elevation and race-day weather on iRun42" /></a>

Plan your trip

Searches are set for Seoul and the race weekend.

Hotels near the start lineClosest first · 2027-04-24 → 2027-04-26Booking.com Flights to SeoulArrive 2027-04-23, fly home 2027-04-27Google Flights Things to do in SeoulTours and attractions in South Korea for the days around the raceKlook Mobile data in South KoreaAn eSIM for maps, tracking apps and results on race dayAiralo Airport transfer from GMPSeoul airport is about 16 km from the startKiwitaxi

Gear for this race

Lightweight running shoesBuilt for fast road miles Energy gelsFuel for race day

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Around the same time

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