The 2025 event has concluded.

Hawaii Bird Conservation Marathon

Hilo, HI, USADecember 21, 2025
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Race Day Weather

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69°
84° high
Windy
Dry

Warm start, rising temps ahead

Runners will face a warm start at 70°F, climbing to 84°F by the finish. With average humidity at 67% and a dew point of 65°F, conditions will feel increasingly muggy. A steady headwind of 13 mph will be present, prompting runners to adjust their pace and hydrate frequently throughout the race.

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This beautiful USATF certified course is all downhill except for a few gently rolling uphill sections at the beginning of the course. During the first 3 miles, the course is through the Volcano Golf subdivision and turns right onto Highway 11 as it passes through Hawai‘i Volcanoes National Park. For the first 18 miles the course is surrounded by a mixture of original Hawaiian hapu‘u & ʻōhiʻa rainforest, residential and agricultural land. The Start on a clear day offers a spectacular view of Hawai‘i’s highest volcanoes, Mauna Loa and Mauna Kea, and during the first few miles runners will experience the dawn chorus of many Hawaiian endemic birds that may include the Apapane, Hawai‘i Amakihi, I‘iwi (all three are Hawaiian Honeycreepers), Oma‘o (Hawaiian Thrush), and Hawai‘i Elepaio (a monarch flycatcher). As you run, keep your eyes open for the Nene (Hawaiian Goose) and the ‘Io (Hawaiian Hawk), both endangered Hawaiian endemic species. After Volcano at Mile 7.67, the race continues downhill along Highway 11 until Mile 26.09 when runners turn left into Herbert Shipman Park with the Finish on the grass field next to the parking lot for the Armory. Source

Area Map

Course Map

FAQ

When is the 2025 Hawaii Bird Conservation Marathon?

The 2025 Hawaii Bird Conservation Marathon will be held on Sunday December 21, 2025.

Is the Hawaii Bird Conservation Marathon a Boston Marathon Qualifier?

Yes, the Hawaii Bird Conservation Marathon is an official Boston Marathon qualifier.

What is the time limit for the Hawaii Bird Conservation Marathon?

The time limit for the Hawaii Bird Conservation Marathon is 6 hours.

What will the weather be like for the 2025 Hawaii Bird Conservation Marathon?

The forecast calls for a high of 84°F and a low of 69°F with a 0% chance of rain.

Historical Weather

Based on 2 years of data
Avg Temp
76°F
L:64° H:77°
RunScore
8
Conditions
Rain Freq
0%
0 of 2 yrs
Wind7mph
Dew64°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScore
2024
partly-cloudy-night
65°/80°-
8
2023
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63°/75°-
8