San Sebastián Marathon

San Sebastián, Spain · November 22, 2026

45°·52° high·Breezy·Rain possible

Weather

Race Day Weather

45°at start

52° high

Breezy

Rain possible

Cool start, rising temps

Runners will face a cool start at 44°F, gradually warming to 52°F. With a light headwind from the W, pacing should remain steady, but humidity at 80% may require hydration planning. Given the chance of light rain pre-race, a throwaway layer is advisable for the wait.

Race day forecast available in 24 days

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Distance: 26.2mi

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Race Info

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.

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Course Map

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 54°F and a low of 43°F with a 23% 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

61°F

L:48° H:61°

RunScore

Conditions

Rain Freq

0 of 3 yrs

Wind10mph

Dew42°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

Year	Low / High	Rain	Dew Point
2025 San Sebastián Marathon Partly cloudy throughout the day with rain clearing later. 2025	56°/62°	-	47°
2023 San Sebastián Marathon Partly cloudy throughout the day with morning rain. 2023	38°/53°	-	42°
2022 San Sebastián Marathon Cloudy skies throughout the day. 2022	51°/67°	-	38°

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