Marathon Duchesnay-Quebec Half Marathon

Sainte-Catherine-de-la-Jacques-Cartier, QC, Canada · October 25, 2026
partly-cloudy-day40°·46° high·Light·Dry
10
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Race Day Weather

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40°at start
48° high
Light
Dry
Your goal
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Cold start — layer up

Runners will start in chilly 40°F conditions — dress in layers for the corral and plan to shed early. Temperatures rising to 48°F through the course will gradually increase perceived effort in the second half. Light winds shouldn't be a major factor for pacing. Moderate humidity at 71% is worth noting for effort level, especially in later miles.

Race day forecast available in 14 days
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Pace Calculator

Distance: 13.1mi
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Race Plan

Get your personalized Marathon Duchesnay-Quebec Half Marathon race plan

True Effort pacing, weather-adjusted mile splits, fueling timeline with aid stations, packing checklist, carb tracker, spectator guide — all personalized to your goal and race-day conditions.

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Race Info

The Marathon Duchesnay-Quebec Half Marathon covers 21.1 kilometers point-to-point, starting at the Station Touristique Duchesnay in Sainte-Catherine-de-la-Jacques-Cartier and finishing at Canadian Forces Base Valcartier, about 30 kilometers northwest of downtown Quebec City. It follows the same route as the full marathon along the Veloroute Jacques-Cartier/Portneuf multi-use trail beside the Riviere Jacques-Cartier, running mostly on packed crushed stone with a shorter paved section. The course is flat and certified by World Athletics. Because the start and finish are roughly 12 kilometers apart, runners reach the start by organizer shuttle rather than driving there directly.

Race weekend

Saturday, October 24
8:00 AM10K (6.2 mi)
10:00 AM5K (3.1 mi)
11:00 AM2.5K (1.6 mi)
Sunday, October 25
9:30 AMHalf Marathon (13.1 mi)

FAQ

When is the 2026 Marathon Duchesnay-Quebec Half Marathon?

The 2026 Marathon Duchesnay-Quebec Half Marathon will be held on Sunday October 25, 2026.

What will the weather be like for the 2026 Marathon Duchesnay-Quebec Half Marathon?

The forecast calls for a high of 50°F and a low of 37°F with a 16% chance of rain. Check our detailed hourly forecast above for the best half marathon race plan.

What is the elevation profile of the Marathon Duchesnay-Quebec Half Marathon?

The Marathon Duchesnay-Quebec Half Marathon has 197ft of total elevation gain. View the interactive course map above for a detailed elevation profile.

Historical Weather

Based on 2 years of data
Avg Temp
40°F
L:37° H:42°
RunScore
10
Conditions
Rain Freq
100%
2 of 2 yrs
Wind4mph
Dew31°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2025
partly-cloudy-day
42°/46°Light
10
2024
cloudy
32°/37°Light
10