Runners will face a temperature range from 48°F to 55°F, with high humidity at 98%. Wind will shift from crosswinds to tailwinds at various points, notably a headwind from miles 11 to 20. To optimize performance, runners should adjust their pace during the headwind sections and take advantage of the tailwinds towards the end.
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Distance: 26.2mi
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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.
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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
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 55°F and a low of 48°F with a 100% 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.
