The 2026 Marathon de Longueuil has concluded.

Marathon de Longueuil

Race complete
Longueuil, QC, Canada · May 17, 2026
clear-day61°·72° high·Light·Dry
6
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Weather
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Course
Race Info
FAQ
History

Race Day Weather

clear-day
61°at start
73° high
Light
Dry

Comfortable temps, warming through the race

Starting at 61°F, heat will be a factor from the gun — go out conservative and stay on top of hydration. Temperatures rising to 73°F through the course will gradually increase perceived effort in the second half. Light winds shouldn't be a major factor for pacing.

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Pace Calculator

Distance: 26.2mi
0:00:00
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Race Info

Marathon de Longueuil is an annual road race in Longueuil, Quebec, on the south shore of the Saint Lawrence River across from Montreal. It started in 2016 and offers distances from 1 km to the full 42.2 km marathon, starting and finishing at the Colisee Jean-Beliveau on Boulevard Jacques-Cartier Est. The course is certified by Athletics Canada and qualifies for the Boston and New York City Marathons.

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FAQ

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When is the 2026 Marathon de Longueuil?

The 2026 Marathon de Longueuil will be held on Sunday May 17, 2026.

Is the Marathon de Longueuil a Boston Marathon Qualifier?

Yes, the Marathon de Longueuil is an official Boston Marathon qualifier.

What will the weather be like for the 2026 Marathon de Longueuil?

The forecast calls for a high of 73°F and a low of 57°F with a 0% chance of rain.

Historical Weather

Based on 5 years of data
Avg Temp
70°F
L:64° H:74°
RunScore
5
Conditions
Rain Freq
20%
1 of 5 yrs
Wind10mph
Dew54°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults

2025 Marathon de Longueuil

Cloudy skies throughout the day with rain.

2025
partly-cloudy-day
57°/60°Light
7

2024 Marathon de Longueuil

Clearing in the afternoon.

2024
partly-cloudy-day
68°/73°-
5

2023 Marathon de Longueuil

Partly cloudy throughout the day with late afternoon rain.

2023
cloudy
61°/72°-
6

2022 Marathon de Longueuil

Partly cloudy throughout the day.

2022
clear-day
74°/88°-
2

2016 Marathon de Longueuil

Clearing in the afternoon.

2016
clear-day
63°/77°-
5

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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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