San Sebastián Marathon

San Sebastián, Spain · November 22, 2026
partly-cloudy-day50°·59° high·Light·Rain possible
9
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San Sebastián Marathon race day weather

partly-cloudy-day
50°at start
59° high
Light
Rain possible
Your goal
0:00:00

Cool morning, steady conditions

Runners will face temperatures starting at 50°F and rising to 59°F by race end. Winds will be light from the SW at 7 mph, making it a non-factor. With humidity at 72%, a conservative pacing strategy is advised, especially early on. A light layer may be beneficial during pre-race due to the cooler feels-like temperature.

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About the San Sebastián Marathon

The San Sebastián Marathon runs through Donostia's old town and along La Concha Bay in Spain's Basque Country. First held in 1978, it is Spain's second-oldest marathon after Madrid's. The route starts on Calle Hernani near San Sebastián's city hall and finishes on the Boulevard after a flat, urban course through the Antiguo, Amara and Gros neighborhoods. The men's course record is 2:09:34, set by Kenya's Timothy Cherigat in 2002.

Area Map
Course Map

San Sebastián Marathon FAQ

When is the 2026 San Sebastián Marathon?

The 2026 San Sebastián Marathon will be held on Sunday November 22, 2026.

Is the San Sebastián Marathon a Boston Marathon Qualifier?

Yes, the San Sebastián Marathon is an official Boston Marathon qualifier.

What is the time limit for the San Sebastián Marathon?

The time limit for the San Sebastián Marathon is 5 hours.

What will the weather be like for the 2026 San Sebastián Marathon?

The forecast calls for a high of 59°F and a low of 48°F with a 42% chance of rain. Check our detailed hourly forecast above for the best marathon race plan.

What is the weather usually like for the San Sebastián Marathon?

Over the 3 years racecast.io has race-day weather for (2022 to 2025), it averaged 48°F at the start and 57°F by a typical finish. It has not rained during race hours in any of those years.

What was the hottest San Sebastián Marathon?

Of the 3 years on record, 2022 was the warmest, reaching 61°F during race hours. The coldest start was 2023, at 38°F.

What was the windiest San Sebastián Marathon?

Of the 3 years on record, 2022 was the windiest, with wind averaging 16 mph during race hours. The calmest was 2023, at 4 mph.

San Sebastián Marathon weather history

Based on 3 years of data
Avg Temp
53°F
L:48° H:57°
RunScore
9
Conditions
Rain Freq
0%
0 of 3 yrs
Wind11mph
Dew43°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2025
cloudy
56°/61°-
8
2023
partly-cloudy-day
38°/49°-
10
2022
cloudy
51°/61°-
9