Half marathonRoad🇺🇸 Seattle, United States

Seattle Half Marathon

Sunday, 29 November 2026In 49 days · Start 07:00

A Thanksgiving-weekend half that starts at 5th and Harrison near Seattle Center and finishes at Pier 66 on the downtown waterfront.

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Facts checked 10 Oct 2026 against seattlemarathon.org, haid.app.

Elevation gain

120 m

Rolling · ↓ 150 m

Start altitude

30 m

above sea level, from terrain data

Temp at start

5°C

Peaks around 7°C

Entry fee

≈ $185

Open entry

Finishers

—

typical year

Course

Point to point

Cut-off: check site

Getting thereFly into SEA (Seattle), about 20 km from the start

Course map

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

Elevation profile

Rolling: about 120 m of climbing and 150 m of descent. A detailed profile isn’t available for this race yet.

Race-day weather

At start

5°C

Peak during race

7°C

Humidity

86%

Chance of rain

33%

Wind

12 km/h

Race day in past years

Historical averages for 29 November ±3 days, 2016–2025, from 07:00 for 5 hours (70 days sampled). Source: Open-Meteo / ERA5.

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