Toronto Waterfront Half Marathon

Toronto, ON, Canada · October 17, 2027·
partly-cloudy-day53°·53° high·Breezy·Dry
9
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Race Day Weather

partly-cloudy-day
53°at start
55° high
Breezy
Dry
Your goal
0:00:00

Comfortable temps, moderate wind

Mild 53°F temps at gun time mean comfortable early miles without overheating risk. Moderate winds around 15mph may affect pacing on open sections of the course. Moderate humidity at 73% is worth noting for effort level, especially in later miles.

Race day forecast available in 341 days
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Pace Calculator

13.1mi
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Race Plan

Get your personalized Toronto Waterfront 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 Toronto Waterfront Marathon's half marathon covers 21.1 kilometres through downtown Toronto and along the Lake Ontario waterfront, passing through more than a dozen neighbourhoods. It starts on Yonge Street north of Gerrard Street, runs on the Sunday of race weekend alongside the full marathon, and finishes on Bay Street just north of Queen Street near Nathan Phillips Square.

Race weekend

Saturday, October 16
9:00 AM5K (3.1 mi)
Sunday, October 17
8:00 AMMarathon (26.2 mi)
8:00 AMHalf Marathon (13.1 mi)

FAQ

When is the 2027 Toronto Waterfront Half Marathon?

The 2027 Toronto Waterfront Half Marathon will be held on Sunday October 17, 2027.

What is the time limit for the Toronto Waterfront Half Marathon?

The time limit for the Toronto Waterfront Half Marathon is 3.5 hours.

What will the weather be like for the 2027 Toronto Waterfront Half Marathon?

The forecast calls for a high of 60°F and a low of 53°F with a 12% chance of rain. Check our detailed hourly forecast above for the best half marathon race plan.

Historical Weather

Based on 25 years of data
Avg Temp
55°F
L:53° H:56°
RunScore
8
Conditions
Rain Freq
24%
6 of 25 yrs
Wind7mph
Dew48°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2026
clear-day
41°/50°-
9
2025
clear-day
67°/69°-
5
2024
clear-day
48°/55°-
10
2023
partly-cloudy-day
47°/50°-
9
2022
cloudy
47°/49°-
10
2019
partly-cloudy-day
47°/49°-
10
2018
cloudy
35°/37°-
10
2017
clear-day
53°/60°-
8
2016
partly-cloudy-day
64°/66°Light
5
2015
cloudy
37°/39°-
10
2014
partly-cloudy-day
38°/41°-
10
2013
clear-day
40°/46°-
10
2012
rain
58°/59°Light
6
2011
cloudy
49°/52°-
9
2010
clear-day
50°/54°-
10
2009
rain
63°/63°Light
5
2008
partly-cloudy-day
64°/66°-
5
2007
clear-day
59°/65°-
7
2006
rain
64°/66°Light
5
2005
rain
65°/66°Light
5
2004
clear-day
55°/61°-
7
2003
partly-cloudy-day
52°/57°-
9
2002
rain
67°/68°Light
5
2001
clear-day
54°/63°-
7
2000
cloudy
54°/57°-
9