Bellingham Bay Marathon

Bellingham, WA, USA · September 20, 2026

56°·57° high·Light·Dry

Weather

Race Day Weather

56°at start

58° high

Light

Dry

Cool temps, light winds, steady pace

Runners will face a consistent temperature of 57°F to 58°F, with humidity at 87%. Light winds will create a headwind in the early miles, shifting to tailwinds between Miles 2-7 and 9-10, which should aid pacing. Due to the humidity, adjusting pace conservatively early on will be crucial to maintain energy throughout the race.

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Distance: 26.2mi

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0:00:00

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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

Website

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 58°F and a low of 56°F with a 26% chance of rain.

Historical Weather

Based on 18 years of data

Avg Temp

63°F

L:51° H:64°

RunScore

Conditions

Rain Freq

33%

6 of 18 yrs

Wind9mph

Dew50°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

Year	Low / High	Rain	Dew Point
2025 Bellingham Bay Marathon Partly cloudy throughout the day with rain clearing later. 2025	58°/65°	Light	55°
2024 Bellingham Bay Marathon Partly cloudy throughout the day with afternoon rain. 2024	56°/62°	-	52°
2023 Bellingham Bay Marathon Partly cloudy throughout the day with late afternoon rain. 2023	50°/66°	-	53°
2022 Bellingham Bay Marathon Clear conditions throughout the day. 2022	50°/72°	-	55°
2021 Bellingham Bay Marathon Clear conditions throughout the day. 2021	50°/68°	-	55°
2019 Bellingham Bay Marathon Partly cloudy throughout the day. 2019	50°/58°	-	32°
2018 Bellingham Bay Marathon Cloudy skies throughout the day with a chance of rain throughout the day. 2018	53°/56°	Light	51°
2017 Bellingham Bay Marathon Partly cloudy throughout the day. 2017	48°/63°	-	50°
2016 Bellingham Bay Marathon Partly cloudy throughout the day with early morning rain. 2016	55°/69°	-	52°
2015 Bellingham Bay Marathon Clear conditions throughout the day. 2015	39°/59°	-	44°
2014 Bellingham Bay Marathon Partly cloudy throughout the day. 2014	54°/64°	-	54°
2013 Bellingham Bay Marathon Cloudy skies throughout the day with a chance of rain throughout the day. 2013	53°/56°	Light	49°
2012 Bellingham Bay Marathon Clear conditions throughout the day. 2012	43°/62°	-	47°
2011 Bellingham Bay Marathon Partly cloudy throughout the day with rain in the morning and afternoon. 2011	61°/70°	Light	49°
2010 Bellingham Bay Marathon Cloudy skies throughout the day with a chance of rain throughout the day. 2010	61°/63°	Light	59°
2009 Bellingham Bay Marathon Clear conditions throughout the day. 2009	40°/70°	-	39°
2008 Bellingham Bay Marathon Clear conditions throughout the day with early morning rain. 2008	46°/68°	-	46°
2007 Bellingham Bay Marathon Cloudy skies throughout the day with rain. 2007	55°/60°	Light	50°