Ottawa Fall Colours Half Marathon

Ottawa, ON, Canada · October 10, 2027·
partly-cloudy-day51°·58° high·Light·Dry
9
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Race Day Weather

partly-cloudy-day
51°at start
60° high
Light
Dry
Your goal
0:00:00

Comfortable temps

Mild 51°F temps at gun time mean comfortable early miles without overheating risk. Temperatures rising to 60°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 66% is worth noting for effort level, especially in later miles.

Race day forecast available in 339 days
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Pace Calculator

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Race Plan

Get your personalized Ottawa Fall Colours Half Marathon race plan

A mile-by-mile breakdown of where your time goes, weather-adjusted splits, fueling timeline with aid stations, packing checklist, carb tracker, spectator guide, all built around your goal and race-day conditions.

Race Pace
Weather Splits
Nutrition
Gear & Packing
T-Minus
Carb Tracker
Spectator Guide
Race Band

Race Info

The Ottawa Fall Colours Half Marathon is one lap of the 21 km loop that the marathon runs twice, held on the Sunday of race weekend. It starts and finishes at the Cumberland Heritage Village Museum and follows Old Montréal Road, Pierrette Drive, Kinsella Drive and Lough Drive through Cumberland village and the rural roads east of Ottawa. The course is certified, closed to traffic other than locals, and known for its fall foliage.

Race weekend

Saturday, October 9
9:00 AMTurkey Trot (0.6 mi)
9:30 AMWedding Dress Dash (0.6 mi)
10:00 AM3K (1.9 mi)
Sunday, October 10
8:00 AMMarathon (26.2 mi)8:30 AM5K (3.1 mi)9:30 AM10K (6.2 mi)
10:30 AMHalf Marathon (13.1 mi)

FAQ

When is the 2027 Ottawa Fall Colours Half Marathon?

The 2027 Ottawa Fall Colours Half Marathon will be held on Sunday October 10, 2027.

What will the weather be like for the 2027 Ottawa Fall Colours Half Marathon?

The forecast calls for a high of 60°F and a low of 44°F with a 11% chance of rain. Check our detailed hourly forecast above for the best half marathon race plan.

Historical Weather

Based on 20 years of data
Avg Temp
53°F
L:51° H:56°
RunScore
9
Conditions
Rain Freq
10%
2 of 20 yrs
Wind8mph
Dew43°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2026
partly-cloudy-day
51°/64°-
8
2025
clear-day
53°/63°-
8
2024
partly-cloudy-day
43°/47°-
10
2023
rain
50°/54°Light
9
2022
rain
45°/49°Light
10
2019
partly-cloudy-day
47°/55°-
10
2018
cloudy
47°/49°-
10
2017
partly-cloudy-day
70°/70°-
4
2016
partly-cloudy-day
48°/50°-
9
2015
cloudy
56°/59°-
8
2014
partly-cloudy-day
45°/54°-
10
2013
partly-cloudy-day
57°/63°-
7
2012
partly-cloudy-day
41°/45°-
10
2011
partly-cloudy-day
63°/73°-
5
2010
partly-cloudy-day
49°/57°-
10
2009
partly-cloudy-day
43°/45°-
9
2008
partly-cloudy-day
52°/61°-
9
2007
partly-cloudy-day
52°/56°-
10
2006
partly-cloudy-day
52°/61°-
9
2005
partly-cloudy-day
47°/51°-
10