Calgary Half Marathon

Calgary, AB, Canada · May 30, 2027·
partly-cloudy-day45°·49° high·Light·Dry
10
Register

Race Day Weather

partly-cloudy-day
45°at start
62° high
Light
Dry
Your goal
0:00:00

Cool start — fast day potential, big temp swing

A cool 45°F at the start line is ideal for fast times — expect to warm up quickly once you're moving. Temps will climb significantly to 62°F by later miles, so expect fading conditions as the race progresses. Light winds shouldn't be a major factor for pacing.

Race day forecast available in 212 days
partly-cloudy-night10
partly-cloudy-night10
partly-cloudy-day10
partly-cloudy-day10
partly-cloudy-day10
partly-cloudy-day9
partly-cloudy-day9
partly-cloudy-day8
partly-cloudy-day7
partly-cloudy-day7

Pace Calculator

13.1mi
0:00:00
HH:MM:SS
Pace
—

Enter a finish time to see what race day does to it.

Common Goals:

Get forecast alerts for Calgary Half 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 Calgary 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 Calgary Half Marathon is a certified 21.1 km course held on the Sunday of race weekend. It runs through the inner-city neighbourhoods of East Village, Bridgeland and Inglewood and along Memorial Drive beside the Bow River before returning to finish in Enmax Park. The route is mostly flat, with a total elevation range of about 20 metres. The course is certified by Athletics Alberta and Athletics Canada, so results can be used for records and rankings.

Race weekend

Saturday, May 29
6:45 AM10K (6.2 mi)
9:15 AM5K (3.1 mi)
Sunday, May 30
6:45 AMMarathon (26.2 mi)
6:45 AMHalf Marathon (13.1 mi)

FAQ

When is the 2027 Calgary Half Marathon?

The 2027 Calgary Half Marathon will be held on Sunday May 30, 2027.

What is the time limit for the Calgary Half Marathon?

The time limit for the Calgary Half Marathon is 4.5 hours.

What will the weather be like for the 2027 Calgary Half Marathon?

The forecast calls for a high of 69°F and a low of 44°F with a 8% chance of rain. Check our detailed hourly forecast above for the best half marathon race plan.

Historical Weather

Based on 24 years of data
Avg Temp
48°F
L:45° H:51°
RunScore
10
Conditions
Rain Freq
25%
6 of 24 yrs
Wind6mph
Dew39°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2026
partly-cloudy-day
46°/49°-
10
2025
clear-day
44°/51°-
10
2024
partly-cloudy-day
42°/44°Light
9
2023
partly-cloudy-day
47°/55°-
10
2022
cloudy
47°/49°-
9
2021
partly-cloudy-night
41°/43°-
10
2019
partly-cloudy-day
35°/43°Light
10
2018
clear-day
47°/54°-
10
2017
rain
48°/55°Light
10
2016
partly-cloudy-day
47°/53°-
10
2015
clear-day
49°/56°-
9
2014
partly-cloudy-day
42°/51°-
10
2013
clear-day
39°/45°-
10
2012
partly-cloudy-day
34°/39°-
10
2011
clear-day
34°/44°-
10
2010
rain
33°/36°Light
10
2009
rain
46°/52°Light
10
2008
partly-cloudy-day
54°/57°-
9
2007
rain
54°/55°Light
8
2006
clear-day
57°/63°-
7
2005
clear-day
49°/55°-
10
2004
partly-cloudy-day
50°/57°-
9
2003
partly-cloudy-day
44°/50°-
10
2002
partly-cloudy-day
49°/57°-
10