Runners will face temperatures starting at 63°F and peaking at 68°F, with high humidity at 87%. A light wind from the WSW at 10 mph will provide minimal impact. Given the warmth and humidity, runners should consider adjusting their pace and prioritize hydration throughout the race.

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Distance: 26.2mi

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About the Buenos Aires Marathon

The Buenos Aires Marathon starts and finishes at Av. Figueroa Alcorta and Dorrego in Palermo, near the Hipodromo Argentino de Palermo. The course runs through Recoleta, along Av. Corrientes and the Obelisco, past the Cabildo, Plaza de Mayo and Teatro Colon, through Parque Tres de Febrero and Puerto Madero. It is a World Athletics Label Race, run since 2003 by the nonprofit Carreras y Maratones Nandu. The race typically takes place on a Sunday in September or October, with a 6-hour cutoff from a 7:00 a.m. start.

Website

Race weekend

Sunday, August 23

8:00 AMHalf Marathon (13.1 mi)

Sunday, September 20

7:00 AMMarathon (26.2 mi)

Course Map

Buenos Aires Marathon FAQ

When is the 2026 Buenos Aires Marathon?

The 2026 Buenos Aires Marathon will be held on Sunday September 20, 2026.

Is the Buenos Aires Marathon a Boston Marathon Qualifier?

Yes, the Buenos Aires Marathon is an official Boston Marathon qualifier.

What is the time limit for the Buenos Aires Marathon?

The time limit for the Buenos Aires Marathon is 6 hours.

What will the weather be like for the 2026 Buenos Aires Marathon?

The forecast calls for a high of 68°F and a low of 57°F with a 0% chance of rain.

What is the weather usually like for the Buenos Aires Marathon?

Over the 20 years racecast.io has race-day weather for (2006 to 2026), it averaged 59°F at the start and 63°F by a typical finish. Rain fell during race hours in 5 of those years.

What was the hottest Buenos Aires Marathon?

Of the 20 years on record, 2024 was the warmest, reaching 68°F during race hours. The coldest start was 2007, at 47°F.

What was the windiest Buenos Aires Marathon?

Of the 20 years on record, 2012 was the windiest, with wind averaging 13 mph during race hours. The calmest was 2017, at 5 mph.

Buenos Aires Marathon weather history

Based on 20 years of data

Avg Temp

61°F

L:58° H:63°

RunScore

Conditions

Rain Freq

25%

5 of 20 yrs

Wind9mph

Dew53°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

Year	Low / High	Rain	Dew Point
2026 Buenos Aires Marathon Partly cloudy throughout the day with rain. 2026	61°/66°	-	59°
2025 Buenos Aires Marathon Partly cloudy throughout the day. 2025	55°/57°	Light	51°
2024 Buenos Aires Marathon Partly cloudy throughout the day. 2024	64°/68°	-	63°
2023 Buenos Aires Marathon Partly cloudy throughout the day. 2023	57°/59°	-	50°
2022 Buenos Aires Marathon Partly cloudy throughout the day. 2022	61°/63°	-	55°
2021 Buenos Aires Marathon Partly cloudy throughout the day. 2021	59°/64°	-	55°
2019 Buenos Aires Marathon Clear conditions throughout the day. 2019	50°/58°	-	33°
2018 Buenos Aires Marathon Partly cloudy throughout the day. 2018	64°/68°	-	56°
2017 Buenos Aires Marathon Clear conditions throughout the day. 2017	59°/66°	-	51°
2016 Buenos Aires Marathon Clear conditions throughout the day. 2016	54°/64°	-	47°
2015 Buenos Aires Marathon Partly cloudy throughout the day. 2015	50°/57°	-	47°
2014 Buenos Aires Marathon Partly cloudy throughout the day. 2014	61°/66°	-	58°
2013 Buenos Aires Marathon Partly cloudy throughout the day. 2013	63°/68°	-	60°
2012 Buenos Aires Marathon Cloudy skies throughout the day. 2012	59°/61°	-	57°
2011 Buenos Aires Marathon Partly cloudy throughout the day with morning rain. 2011	61°/64°	Light	57°
2010 Buenos Aires Marathon Partly cloudy throughout the day. 2010	59°/63°	-	54°
2009 Buenos Aires Marathon Partly cloudy throughout the day with rain clearing later. 2009	58°/63°	Light	51°
2008 Buenos Aires Marathon Partly cloudy throughout the day with a chance of rain throughout the day. 2008	59°/65°	Light	61°
2007 Buenos Aires Marathon Clear conditions throughout the day. 2007	47°/56°	-	33°
2006 Buenos Aires Marathon Partly cloudy throughout the day with a chance of rain throughout the day. 2006	65°/66°	Moderate	64°