Calgary Marathon

Runners will face a temperature range from 44°F at the start to 64°F by the finish, with a light breeze from the WNW at 7 mph. Humidity will be moderate at 54%, suggesting a comfortable run overall. Runners should consider a conservative start to adjust to the rising temperatures and stay hydrated as the race progresses.

Race day forecast available in 207 days

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Distance: 26.2mi

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Race Info

The Calgary Marathon is run in late May in Calgary, Alberta, with the marathon and half marathon on Sunday and the 10K and 5K on Saturday. The marathon course is certified by Athletics Alberta and Athletics Canada, finishes at Enmax Park, and is a Boston qualifier. Feyera Dadi holds the men's course record of 2:16:37, set in 2018. Source

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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 Marathon?

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

Is the Calgary Marathon a Boston Marathon Qualifier?

Yes, the Calgary Marathon is an official Boston Marathon qualifier.

What is the time limit for the Calgary Marathon?

The time limit for the Calgary Marathon is 6.5 hours.

What will the weather be like for the 2027 Calgary 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 marathon race plan.

Historical Weather

Based on 24 years of data

Avg Temp

51°F

L:45° H:56°

RunScore

Conditions

Rain Freq

25%

6 of 24 yrs

Wind6mph

Dew39°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

Year	Low / High	Rain	Dew Point
2026 Calgary Marathon Partly cloudy throughout the day. 2026	46°/50°	-	33°
2025 Calgary Marathon Clear conditions throughout the day. 2025	44°/60°	-	43°
2024 Calgary Marathon Partly cloudy throughout the day with a chance of rain throughout the day. 2024	42°/44°	Light	39°
2023 Calgary Marathon Partly cloudy throughout the day with late afternoon rain. 2023	47°/66°	-	44°
2022 Calgary Marathon Cloudy skies throughout the day. 2022	47°/51°	-	31°
2021 Calgary Marathon Partly cloudy throughout the day. 2021	41°/49°	-	29°
2019 Calgary Marathon Partly cloudy throughout the day with morning rain. 2019	35°/55°	Light	35°
2018 Calgary Marathon Partly cloudy throughout the day. 2018	47°/63°	-	39°
2017 Calgary Marathon Partly cloudy throughout the day with a chance of rain throughout the day. 2017	48°/61°	Light	38°
2016 Calgary Marathon Partly cloudy throughout the day with late afternoon rain. 2016	47°/60°	-	32°
2015 Calgary Marathon Partly cloudy throughout the day. 2015	49°/63°	-	45°
2014 Calgary Marathon Partly cloudy throughout the day with rain. 2014	42°/58°	-	43°
2013 Calgary Marathon Partly cloudy throughout the day with early morning rain. 2013	39°/55°	-	38°
2012 Calgary Marathon Partly cloudy throughout the day. 2012	34°/42°	-	33°
2011 Calgary Marathon Partly cloudy throughout the day. 2011	34°/49°	-	28°
2010 Calgary Marathon Cloudy skies throughout the day with a chance of rain or snow throughout the day. 2010	33°/37°	Light	33°
2009 Calgary Marathon Partly cloudy throughout the day with morning rain. 2009	46°/59°	Light	26°
2008 Calgary Marathon Partly cloudy throughout the day. 2008	54°/63°	-	51°
2007 Calgary Marathon Cloudy skies throughout the day with rain in the morning and afternoon. 2007	54°/58°	Light	51°
2006 Calgary Marathon Partly cloudy throughout the day with rain. 2006	57°/70°	-	55°
2005 Calgary Marathon Partly cloudy throughout the day. 2005	49°/59°	-	38°
2004 Calgary Marathon Partly cloudy throughout the day with late afternoon rain. 2004	50°/61°	-	47°
2003 Calgary Marathon Partly cloudy throughout the day. 2003	44°/54°	-	42°
2002 Calgary Marathon Partly cloudy throughout the day. 2002	49°/68°	-	39°