The 2025 event has concluded.

Crater Lake Marathon

Klamath Falls, OR, USA • August 9, 2025

Race Day Weather

clear-day
48°
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
Pre-raceRace windowPost-race

Pace Calculator

Distance: 26.2mi
0:00:00
HH:MM:SS
Pace
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Weather Adj.
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Common Goals:
Area Map

Course Map

Course Map Unavailable

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When is the 2025 Crater Lake Marathon?

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

Historical Weather

Based on 2 years of data
Avg Temp
87°F
L:62° H:87°
RunScore
7
Conditions
Rain Freq
0%
0 of 2 yrs
Wind10mph
Dew40°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScore

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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