Avenue of the Giants Marathon

Eureka, CA, USA · May 2, 2027·
partly-cloudy-day55°·64° high·Light·Dry
8
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Race Day Weather

partly-cloudy-day
55°at start
67° high
Light
Dry
Your goal
0:00:00

Cool start, warming up later

Runners will face temperatures starting at 50°F and rising to a warm 67°F, necessitating a conservative approach early on. Wind will be light at 8 mph with a mix of conditions throughout the course, but it won't significantly impact performance. As humidity hovers around 58%, hydration should be prioritized, especially in the later laps when temperatures climb. Adjust pacing accordingly to avoid fatigue as the heat increases.

Race day forecast available in 199 days
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Pace Calculator

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Race Plan

Get your personalized Avenue of the Giants Marathon race plan

A mile-by-mile breakdown of where your time goes, weather-adjusted splits, fueling timeline with aid stations, packing checklist, carb tracker, spectator guide, all built around your goal and race-day conditions.

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Weather Splits
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Carb Tracker
Spectator Guide
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Race Info

The Avenue of the Giants Marathon is held annually in May along the Avenue of the Giants in Humboldt Redwoods State Park in Humboldt County, California, United States. \n\n The course, consisting of two out-and-back legs, is almost entirely under the canopy of redwood trees. Half marathon and 10K races are run concurrently. The event, one of four larger annual races organized by the Six Rivers Running Club, was first run in 1972. In 2011, more than 2300 runners participated. Wikipedia

Race weekend

Sunday, May 2
7:45 AMMarathon (26.2 mi)
8:30 AMHalf Marathon (13.1 mi)8:30 AM10K (6.2 mi)

FAQ

When is the 2027 Avenue of the Giants Marathon?

The 2027 Avenue of the Giants Marathon will be held on Sunday May 2, 2027.

Is the Avenue of the Giants Marathon a Boston Marathon Qualifier?

Yes, the Avenue of the Giants Marathon is an official Boston Marathon qualifier.

What will the weather be like for the 2027 Avenue of the Giants Marathon?

The forecast calls for a high of 70°F and a low of 49°F with a 6% chance of rain. Check our detailed hourly forecast above for the best marathon race plan.

Historical Weather

Based on 26 years of data
Avg Temp
51°F
L:46° H:55°
RunScore
9
Conditions
Rain Freq
15%
4 of 26 yrs
Wind6mph
Dew47°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2026
cloudy
48°/52°-
10
2025
clear-day
38°/56°-
9
2024
cloudy
39°/50°Light
10
2023
cloudy
46°/54°-
10
2022
cloudy
46°/53°-
9
2021
cloudy
56°/62°-
7
2019
fog
46°/52°-
10
2018
cloudy
50°/56°-
9
2017
clear-day
47°/54°-
8
2016
clear-day
48°/74°-
7
2015
cloudy
47°/52°-
10
2014
cloudy
54°/57°Light
8
2013
partly-cloudy-day
48°/57°-
9
2012
partly-cloudy-day
44°/55°-
9
2011
clear-day
37°/51°-
10
2010
clear-day
43°/53°-
10
2009
rain
51°/54°Light
9
2008
cloudy
47°/51°-
10
2007
clear-day
42°/55°-
10
2006
partly-cloudy-day
47°/53°-
10
2005
clear-day
50°/56°-
9
2004
clear-day
48°/56°-
9
2003
rain
50°/56°Light
9
2002
partly-cloudy-day
45°/52°-
10
2001
clear-day
40°/57°-
10
2000
cloudy
48°/56°-
8