The 2026 Bellingham Bay Marathon has concluded.Share your finish

Bellingham Bay Marathon

Race complete
Bellingham, WA, USA · September 20, 2026
clear-day46°·55° high·Light·Dry
8
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Race Day Weather

partly-cloudy-day
46°at start
66° high
Light
Dry
Your goal
0:00:00

Cool start, gradual warm-up

Runners will face a temperature range from 46°F at the start to a maximum of 65°F by the finish. With light winds at 5 mph, conditions will be mostly favorable, but humidity at 86% will require adjustments in pacing. The tailwind from miles 2-5 and 10-15 will aid performance, while headwinds in miles 13, 20, and 23-24 may challenge runners. Staying hydrated and pacing conservatively in the warmer final miles is essential.

clear-night10
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cloudy8
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clear-day7
clear-day6
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clear-day5

Pace Calculator

Distance: 26.2mi
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Race Plan

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True Effort pacing, weather-adjusted mile splits, fueling timeline with aid stations, packing checklist, carb tracker, spectator guide — all personalized to your goal and race-day conditions.

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Race Info

Bellingham Bay Marathon follows Bellingham Bay in Bellingham, Washington, with marathon, half marathon, 10K, and 5K options on race weekend. The course starts near Gooseberry Point on a bluff above the bay, crosses farmland and waterfront greenways, and finishes downtown at Depot Market Square. BBM is a Boston Marathon qualifier and all its courses are USATF-certified. Founded in 2007 by the Bellingham Bay Swim Team, the race gives 100% of net proceeds to Whatcom County youth nonprofits, including the swim team and the Whatcom Football Club Rangers. Wikipedia

Race weekend

Sunday, September 20
7:30 AMMarathon (26.2 mi)
9:00 AMHalf Marathon (13.1 mi)
9:15 AM10K (6.2 mi)
9:30 AM5K (3.1 mi)

FAQ

When is the 2026 Bellingham Bay Marathon?

The 2026 Bellingham Bay Marathon will be held on Sunday September 20, 2026.

Is the Bellingham Bay Marathon a Boston Marathon Qualifier?

Yes, the Bellingham Bay Marathon is an official Boston Marathon qualifier.

What is the time limit for the Bellingham Bay Marathon?

The time limit for the Bellingham Bay Marathon is 6.5 hours.

What will the weather be like for the 2026 Bellingham Bay Marathon?

The forecast calls for a high of 66°F and a low of 46°F with a 0% chance of rain.

Historical Weather

Based on 18 years of data
Avg Temp
55°F
L:51° H:59°
RunScore
8
Conditions
Rain Freq
28%
5 of 18 yrs
Wind7mph
Dew49°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScore
2025
rain
57°/61°Light
6
2024
cloudy
53°/61°-
7
2023
partly-cloudy-day
49°/60°-
8
2022
partly-cloudy-night
51°/67°-
7
2021
clear-night
50°/63°-
8
2019
cloudy
49°/54°-
9
2018
rain
53°/54°Light
8
2017
clear-night
50°/58°-
9
2016
cloudy
55°/62°-
7
2015
clear-night
39°/54°-
10
2014
cloudy
54°/57°-
8
2013
rain
53°/55°Light
8
2012
clear-night
41°/57°-
10
2011
partly-cloudy-night
59°/65°-
7
2010
cloudy
60°/62°Light
6
2009
clear-night
39°/59°-
10
2008
clear-night
46°/59°-
9
2007
cloudy
56°/59°Light
7