Ghost of Seattle Half Marathon

Seattle, WA, USA · November 28, 2026·
partly-cloudy-day40°·42° high·Light·Rain possible
10
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Race Day Weather

partly-cloudy-day
40°at start
44° high
Light
Rain possible
Your goal
0:00:00

Cool start — fast day potential, chance of rain

A cool 40°F at the start line is ideal for fast times — expect to warm up quickly once you're moving. Light winds shouldn't be a major factor for pacing. There's a chance of rain, so have a backup gear plan ready. High humidity (82%) will make it harder to cool down through sweat — increase fluid intake accordingly.

Race day forecast available in 35 days
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Pace Calculator

13.1mi
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Race Info

The Seattle Ghost Half Marathon is a single 13.1-mile loop on the Saturday of race weekend, starting and finishing at the Ferdinand Street Boat Launch on Lake Washington Boulevard. The route runs south and circles Seward Park clockwise, then heads north through Leschi to a turnaround past Madrona Drive before returning along the lake. The course is flat, run on streets and sidewalks beside Lake Washington.

Race weekend

Saturday, November 28
6:00 AM50K (31.1 mi)7:00 AMMarathon (26.2 mi)
8:00 AMHalf Marathon (13.1 mi)
Area Map

Course Map

FAQ

When is the 2026 Ghost of Seattle Half Marathon?

The 2026 Ghost of Seattle Half Marathon will be held on Saturday November 28, 2026.

What will the weather be like for the 2026 Ghost of Seattle Half Marathon?

The forecast calls for a high of 46°F and a low of 38°F with a 22% chance of rain. Check our detailed hourly forecast above for the best half marathon race plan.

Historical Weather

Based on 5 years of data
Avg Temp
40°F
L:38° H:41°
RunScore
10
Conditions
Rain Freq
20%
1 of 5 yrs
Wind4mph
Dew37°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2025
partly-cloudy-day
40°/43°-
10
2024
cloudy
36°/40°-
10
2023
cloudy
32°/35°-
10
2022
cloudy
36°/39°-
10
2021
rain
48°/49°Light
10