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 17 days
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Distance: 26.2mi
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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.
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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
Conditions
Rain Freq
16%
4 of 25 yrs
Wind14mph
Dew49°F
Temperature History
Range of temperatures during race hours for each year.
