Belfast City Marathon

Belfast, Ireland, UK · May 3, 2026

47°·55° high·Breezy·Dry

Weather

Race Day Weather

47°at start

55° high

Breezy

Dry

Cool start, gradual warming

Runners will face a cool start at 44°F, warming to a comfortable 55°F by race end. Wind will be variable, featuring headwinds in the early miles and a tailwind from miles 20-23, providing a boost during the final stretch. With average humidity at 71%, maintaining hydration is crucial, especially during the warmer parts of the race. Adjust pacing cautiously during the headwind sections, particularly from miles 8-19.

7 AM

8 AM

9 AM

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11 AM

12 PM

1 PM

2 PM

3 PM

4 PM

5 PM

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Pace Calculator

Distance: 26.2mi

Target Finish Time

0:00:00

HH:MM:SS

Pace

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Race Info

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FAQ

When is the 2026 Belfast City Marathon?

The 2026 Belfast City Marathon will be held on Sunday May 3, 2026.

Is the Belfast City Marathon a Boston Marathon Qualifier?

Yes, the Belfast City Marathon is an official Boston Marathon qualifier.

What will the weather be like for the 2026 Belfast City Marathon?

The forecast calls for a high of 55°F and a low of 38°F with a 26% chance of rain. Check our detailed hourly forecast above for the best marathon race plan.

Historical Weather

Based on 22 years of data

Avg Temp

56°F

L:49° H:57°

RunScore

Conditions

Rain Freq

41%

9 of 22 yrs

Wind13mph

Dew43°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

Year	Low / High	Rain	Dew Point
2025 Belfast City Marathon Clearing in the afternoon. 2025	50°/54°	-	37°
2024 Belfast City Marathon Cloudy skies throughout the day with early morning rain. 2024	54°/59°	-	52°
2023 Belfast City Marathon Partly cloudy throughout the day with a chance of rain throughout the day. 2023	54°/63°	Light	52°
2022 Belfast City Marathon Partly cloudy throughout the day with a chance of rain throughout the day. 2022	50°/56°	Light	50°
2019 Belfast City Marathon Partly cloudy throughout the day. 2019	45°/50°	-	34°
2018 Belfast City Marathon Partly cloudy throughout the day. 2018	50°/66°	-	52°
2017 Belfast City Marathon Clearing in the afternoon with early morning rain. 2017	52°/63°	-	46°
2016 Belfast City Marathon Partly cloudy throughout the day with rain. 2016	47°/54°	Light	39°
2015 Belfast City Marathon Partly cloudy throughout the day with early morning rain. 2015	50°/57°	-	40°
2014 Belfast City Marathon Partly cloudy throughout the day with afternoon rain. 2014	50°/54°	Light	46°
2013 Belfast City Marathon Partly cloudy throughout the day. 2013	54°/60°	-	50°
2012 Belfast City Marathon Partly cloudy throughout the day with rain in the morning and afternoon. 2012	43°/48°	Light	42°
2011 Belfast City Marathon Partly cloudy throughout the day. 2011	54°/61°	-	36°
2010 Belfast City Marathon Partly cloudy throughout the day. 2010	48°/54°	-	38°
2009 Belfast City Marathon Partly cloudy throughout the day with a chance of rain throughout the day. 2009	50°/54°	Light	48°
2008 Belfast City Marathon Partly cloudy throughout the day. 2008	49°/61°	-	49°
2007 Belfast City Marathon Partly cloudy throughout the day with rain. 2007	50°/57°	Light	43°
2006 Belfast City Marathon Partly cloudy throughout the day with rain. 2006	45°/52°	Light	36°
2005 Belfast City Marathon Partly cloudy throughout the day with rain. 2005	54°/61°	-	49°
2004 Belfast City Marathon Partly cloudy throughout the day with rain. 2004	47°/52°	Light	38°
2002 Belfast City Marathon Partly cloudy throughout the day. 2002	48°/56°	-	42°
2001 Belfast City Marathon Clearing in the afternoon. 2001	48°/59°	-	41°