Ottawa Fall Colours Half Marathon

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 318 days

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Distance: 13.1mi

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About the Ottawa Fall Colours Half Marathon

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.

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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)

Ottawa Fall Colours Half Marathon 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 61°F and a low of 43°F with a 12% chance of rain. Check our detailed hourly forecast above for the best half marathon race plan.

What is the weather usually like for the Ottawa Fall Colours Half Marathon?

Over the 20 years racecast.io has race-day weather for (2005 to 2026), it averaged 50°F at the start and 55°F by a typical finish. Rain fell during race hours in 1 of those years (2022).

What was the hottest Ottawa Fall Colours Half Marathon?

Of the 20 years on record, 2011 was the warmest, reaching 72°F during race hours. The coldest start was 2012, at 40°F.

What was the windiest Ottawa Fall Colours Half Marathon?

Of the 20 years on record, 2009 was the windiest, with wind averaging 15 mph during race hours. The calmest was 2008, at 2 mph.

Ottawa Fall Colours Half Marathon weather history

Based on 20 years of data

Avg Temp

53°F

L:50° H:55°

RunScore

Conditions

Rain Freq

1 of 20 yrs

Wind9mph

Dew43°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

This race has moved. A year marked with a city was run there, and its weather is from there.

Year	Low / High	Rain	Dew Point
2026 Ottawa Fall Colours Half Marathon Ottawa, ON, Canada · Partly cloudy throughout the day. 2026Ottawa, ON, Canada	51°/64°	-	46°
2025 Ottawa Fall Colours Half Marathon Partly cloudy throughout the day. 2025	54°/62°	-	44°
2024 Ottawa Fall Colours Half Marathon Partly cloudy throughout the day. 2024	43°/47°	-	34°
2023 Ottawa Fall Colours Half Marathon Cloudy skies throughout the day with late afternoon rain. 2023	49°/53°	-	46°
2022 Ottawa Fall Colours Half Marathon Partly cloudy throughout the day with morning rain. 2022	45°/49°	Light	42°
2019 Ottawa Fall Colours Half Marathon Clear conditions throughout the day with early morning rain. 2019	46°/52°	-	41°
2018 Ottawa Fall Colours Half Marathon Cloudy skies throughout the day. 2018	46°/48°	-	42°
2017 Ottawa Fall Colours Half Marathon Partly cloudy throughout the day with morning rain. 2017	69°/69°	-	59°
2016 Ottawa Fall Colours Half Marathon Partly cloudy throughout the day. 2016	48°/49°	-	39°
2015 Ottawa Fall Colours Half Marathon Partly cloudy throughout the day. 2015	55°/59°	-	48°
2014 Ottawa Fall Colours Half Marathon Clear conditions throughout the day. 2014	43°/52°	-	39°
2013 Ottawa Fall Colours Half Marathon Partly cloudy throughout the day. 2013	55°/62°	-	51°
2012 Ottawa Fall Colours Half Marathon Partly cloudy throughout the day. 2012	40°/44°	-	33°
2011 Ottawa Fall Colours Half Marathon Partly cloudy throughout the day. 2011	60°/72°	-	56°
2010 Ottawa Fall Colours Half Marathon Partly cloudy throughout the day. 2010	48°/55°	-	32°
2009 Ottawa Fall Colours Half Marathon Partly cloudy throughout the day. 2009	42°/45°	-	28°
2008 Ottawa Fall Colours Half Marathon Partly cloudy throughout the day. 2008	51°/60°	-	46°
2007 Ottawa Fall Colours Half Marathon Partly cloudy throughout the day. 2007	51°/54°	-	42°
2006 Ottawa Fall Colours Half Marathon Partly cloudy throughout the day. 2006	52°/61°	-	45°
2005 Ottawa Fall Colours Half Marathon Cloudy skies throughout the day. 2005	47°/49°	-	42°

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