Avenue of the Giants Marathon

Eureka, CA, USAMay 3, 2026
Register

Race Day Weather

partly-cloudy-day
46°
57° high
Breezy
Dry

Cool conditions, strategic pacing needed

Runners will face a steady temperature rise from 48°F at the start to 57°F by the finish, with humidity at 83%. Winds will present challenges, with headwinds from miles 1-2, 4-7, and 14, while tailwinds will aid from miles 8-10 and 26-27. Due to the cool temperatures, runners should maintain their pace and stay hydrated throughout, especially in the exposed segments with headwinds.

Race day forecast available in 24 days
partly-cloudy-night8
partly-cloudy-night8
partly-cloudy-day9
partly-cloudy-day9
partly-cloudy-day9
partly-cloudy-day9
partly-cloudy-day8
partly-cloudy-day8
partly-cloudy-day8
partly-cloudy-day8
partly-cloudy-day7
partly-cloudy-day8

Pace Calculator

Distance: 26.2mi
0:00:00
HH:MM:SS
Pace
Weather Adj.
Common Goals:

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

FAQ

When is the 2026 Avenue of the Giants Marathon?

The 2026 Avenue of the Giants Marathon will be held on Sunday May 3, 2026.

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 2026 Avenue of the Giants Marathon?

The forecast calls for a high of 57°F and a low of 46°F with a 0% chance of rain. Check our detailed hourly forecast above for the best marathon race plan.

Historical Weather

Based on 25 years of data
Avg Temp
58°F
L:49° H:58°
RunScore
7
Conditions
Rain Freq
16%
4 of 25 yrs
Wind14mph
Dew49°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2025
clear-day
46°/59°-
7
2024
rain
41°/55°Light
8
2023
cloudy
47°/54°Light
8
2022
clear-day
48°/56°-
8
2021
cloudy
57°/65°-
8
2019
cloudy
47°/57°-
8
2018
cloudy
50°/59°-
8
2017
clear-day
48°/56°-
6
2016
clear-day
52°/78°-
8
2015
cloudy
48°/55°-
8
2014
cloudy
55°/61°Light
8
2013
partly-cloudy-day
50°/59°-
8
2012
clear-day
46°/59°-
8
2011
clear-day
44°/55°-
8
2010
clear-day
47°/55°-
7
2009
cloudy
51°/55°-
8
2008
cloudy
48°/57°-
8
2007
clear-day
50°/69°-
8
2006
clear-day
50°/57°-
7
2005
clear-day
53°/58°-
9
2004
fog
50°/57°-
8
2003
rain
50°/56°Light
8
2002
cloudy
47°/54°-
7
2001
clear-day
51°/58°-
8
2000
cloudy
51°/55°-
6