The 2025 Crater Lake Marathon has concluded.

Crater Lake Marathon

Race complete
Klamath Falls, OR, USA · August 9, 2025
clear-day54°·80° high·Light·Dry
8
Weather
Pace Calc
Course
Race Info
FAQ
History

Race Day Weather

clear-day
54°at start
85° high
Breezy
Dry

Cool start, warming steadily

Runners will face a temperature rise from 54°F at the start to 81°F by the finish. With a light wind from the NNE at 6 mph and low humidity at 37%, conditions are favorable but will warm significantly. Runners should adjust their pace as temperatures climb and stay hydrated throughout the race.

clear-night9
clear-night7
clear-day9
clear-day8
clear-day9
clear-day8
clear-day8
clear-day7
clear-day8
clear-day8
clear-day8
clear-day7

Pace Calculator

Distance: 26.2mi
0:00:00
HH:MM:SS
Pace
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Race Info

The Crater Lake Marathon is a trail marathon run within Crater Lake National Park in southern Oregon, following sections of Rim Drive at elevations between 5,980 and 7,850 feet. The final four miles of the marathon course run on unpaved pumice cinder road near the lake's north shore. Companion 13-mile and 6.7-mile races share most of the route, with cutoff times of 10:00 AM and 9:30 AM respectively, while the marathon cutoff is 1:00 PM.

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Area Map

Course Map

Course Map Unavailable

We don't have course map data for Crater Lake Marathon yet. If you have a GPX file (or other format) for this race, we'd love to add it!

FAQ

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When is the 2025 Crater Lake Marathon?

The 2025 Crater Lake Marathon will be held on Saturday August 9, 2025.

What will the weather be like for the 2025 Crater Lake Marathon?

The forecast calls for a high of 86°F and a low of 48°F with a 0% chance of rain. Check our detailed hourly forecast above for the best marathon race plan.

Historical Weather

Based on 3 years of data
Avg Temp
85°F
L:62° H:85°
RunScore
7
Conditions
Rain Freq
0%
0 of 3 yrs
Wind8mph
Dew39°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScore

2025 Crater Lake Marathon

Clear conditions throughout the day.

2025
clear-day
61°/81°-
8

2024 Crater Lake Marathon

Clear conditions throughout the day.

2024
clear-day
59°/87°-
7

2023 Crater Lake Marathon

Clear conditions throughout the day.

2023
clear-day
65°/87°-
8

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Free guidesMarathon Fueling Guide·Carb Loading Guide·Race Morning Guide·Race Day Gear Guide·Pacing Strategy Guide·Mental Strategy Guide

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