Grand Canyon Trail Half Marathon

Tusayan, AZ, USA · October 23, 2027·
partly-cloudy-day40°·53° high·Breezy·Dry
10
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Grand Canyon Trail Half Marathon race day weather

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40°at start
62° high
Breezy
Dry
Your goal
0:00:00

Cool start — fast day potential, big temp swing

A cool 40°F at the start line is ideal for fast times — expect to warm up quickly once you're moving. Temps will climb significantly to 62°F by later miles, so expect fading conditions as the race progresses. Light winds shouldn't be a major factor for pacing.

Race day forecast available in 335 days
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About the Grand Canyon Trail Half Marathon

The Grand Canyon Trail Half Marathon is a clockwise loop through Kaibab National Forest on the Coconino Plateau, a few miles south of the Grand Canyon's South Rim. It starts and finishes at the IMAX Visitor Center in Tusayan, runs along the highway sidewalk and a bike path, then follows Forest Service dirt roads where the roughest, uphill footing comes in the first four miles. The middle miles roll downhill through the Coconino Wash and pass twice under a historic railroad line, and the last stretch returns on a mostly downhill paved section of the Arizona Trail. The loop climbs about 555 feet and tops out near 6,730 feet, and the course runs slightly longer than 13.1 miles.

Race weekend

Saturday, October 23
7:30 AMMarathon (26.2 mi)
7:30 AMHalf Marathon (13.1 mi)
7:30 AMMarathon Relay (26.2 mi)
7:45 AM5K Walk/Run (3.1 mi)
Area Map
Course Map

Grand Canyon Trail Half Marathon FAQ

When is the 2027 Grand Canyon Trail Half Marathon?

The 2027 Grand Canyon Trail Half Marathon will be held on Saturday October 23, 2027.

What will the weather be like for the 2027 Grand Canyon Trail Half Marathon?

The forecast calls for a high of 63°F and a low of 38°F with a 3% chance of rain. Check our detailed hourly forecast above for the best half marathon race plan.

What is the weather usually like for the Grand Canyon Trail Half Marathon?

Over the 5 years racecast.io has race-day weather for (2019 to 2026), it averaged 27°F at the start and 49°F by a typical finish. It has not rained during race hours in any of those years.

What was the hottest Grand Canyon Trail Half Marathon?

Of the 5 years on record, 2025 was the warmest, reaching 52°F during race hours. The coldest start was 2024, at 22°F.

What was the windiest Grand Canyon Trail Half Marathon?

Of the 5 years on record, 2019 was the windiest, with wind averaging 7 mph during race hours. The calmest was 2025, at 0 mph.

Grand Canyon Trail Half Marathon weather history

Based on 5 years of data
Avg Temp
37°F
L:27° H:49°
RunScore
10
Conditions
Rain Freq
0%
0 of 5 yrs
Wind2mph
Dew21°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2026
partly-cloudy-day
33°/49°-
10
2025
clear-day
25°/52°-
10
2024
clear-day
22°/43°-
10
2021
clear-day
24°/49°-
10
2019
clear-day
31°/50°-
10