Toronto Waterfront Marathon

Toronto, ON, Canada · October 18, 2026
partly-cloudy-day53°·56° high·Breezy·Dry
8
Register

Race Day Weather

partly-cloudy-day
53°at start
57° high
Breezy
Dry

Cool temps, manageable winds

Runners will face a temperature range from 53°F to 57°F, with average humidity at 67%. Wind will start as a headwind from Mile 2 to 8, then shift to a tailwind from Miles 9 to 20, before returning to headwinds in the final stretch. Competitors should adjust their pacing during the exposed headwind segments and take advantage of the tailwind to push through the mid-race.

Race day forecast available in 29 days
partly-cloudy-night8
partly-cloudy-night8
partly-cloudy-day7
partly-cloudy-day7
partly-cloudy-day7
partly-cloudy-day7
partly-cloudy-day8
partly-cloudy-day7
partly-cloudy-day7
partly-cloudy-day7
partly-cloudy-day7

Pace Calculator

Distance: 26.2mi
0:00:00
HH:MM:SS
Pace
Weather Adj.
Common Goals:

Get forecast alerts for Toronto Waterfront Marathon

We'll text or email you when the forecast shifts — so you can adjust gear, pacing, and strategy. Max one per day.

Race Plan

Get your personalized Toronto Waterfront Marathon race plan

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

Race Conditions
Terrain Splits
Nutrition
Gear & Packing
T-Minus
Carb Tracker
Spectator Guide
Race Band

Race Info

The Toronto Waterfront Marathon runs through downtown Toronto and along the Lake Ontario waterfront every October, drawing more than 30,000 runners across the marathon, half marathon and 5K. The 42.195-kilometre course starts on Yonge Street near Elm Street and finishes on Bay Street near Queen Street, and its flat profile has made it a frequent stop for runners chasing Boston qualifying times. First run in 1999, the race carries World Athletics Elite Label status and serves as the Athletics Canada National Marathon Championships.

FAQ

When is the 2026 Toronto Waterfront Marathon?

The 2026 Toronto Waterfront Marathon will be held on Sunday October 18, 2026.

Is the Toronto Waterfront Marathon a Boston Marathon Qualifier?

Yes, the Toronto Waterfront Marathon is an official Boston Marathon qualifier.

What is the time limit for the Toronto Waterfront Marathon?

The time limit for the Toronto Waterfront Marathon is 6.5 hours.

What will the weather be like for the 2026 Toronto Waterfront Marathon?

The forecast calls for a high of 59°F and a low of 53°F with a 12% chance of rain. Check our detailed hourly forecast above for the best marathon race plan.

Historical Weather

Based on 24 years of data
Avg Temp
62°F
L:53° H:62°
RunScore
8
Conditions
Rain Freq
29%
7 of 24 yrs
Wind8mph
Dew50°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2025
clear-day
67°/72°-
7
2024
clear-day
48°/69°-
8
2023
partly-cloudy-day
47°/51°-
7
2022
cloudy
47°/57°-
9
2019
partly-cloudy-day
47°/59°-
8
2018
cloudy
35°/43°-
7
2017
clear-day
53°/71°-
8
2016
partly-cloudy-day
64°/70°Light
7
2015
cloudy
37°/43°-
8
2014
partly-cloudy-day
38°/46°-
8
2013
clear-day
40°/55°-
8
2012
rain
58°/65°Light
8
2011
cloudy
49°/55°-
6
2010
clear-day
50°/61°-
9
2009
rain
63°/67°Light
8
2008
partly-cloudy-day
64°/72°Light
8
2007
clear-day
59°/70°-
8
2006
rain
64°/68°Light
6
2005
rain
65°/74°Light
8
2004
clear-day
55°/69°-
9
2003
partly-cloudy-day
52°/63°-
9
2002
rain
67°/71°Light
8
2001
clear-day
54°/67°-
9
2000
cloudy
54°/60°-
8