Runners will face a cool start at 48°F, gradually warming to 57°F. With a consistent headwind in the early miles (1-4), pacing adjustments are crucial to conserve energy. Humidity is high at 83%, so hydration should be prioritized throughout. Expect a beneficial tailwind from miles 8-10 and 12-13, providing a chance to pick up the pace.
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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 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.
