Belfast City Half Marathon

Belfast, Ireland, UKSeptember 20, 2026
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Race Day Weather

partly-cloudy-day
52°
61° high
Breezy
Dry

Cool morning, strategic wind shifts

Runners will face a temperature rise from 52°F at the start to 61°F by the finish, with an average humidity of 79%. Winds will start as a headwind for the first two miles, transitioning to a tailwind from miles 3 to 6, then crosswinds through mile 11, and finishing with a headwind in miles 12 and 14. Runners should pace conservatively early on and stay hydrated, especially when facing the wind on the exposed stretches.

Race day forecast available in 175 days
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Pace Calculator

Distance: 13.1mi
0:00:00
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Common Goals:

The Belfast City Half Marathon is Northern Ireland's largest half marathon event, attracting thousands of participants annually. The race starts and finishes on Ormeau Embankment, taking runners through all four areas of Belfast—North, South, East, and West. The flat and fast course offers a scenic tour of the city, passing landmarks such as the towering Harland and Wolff cranes, the vibrant Custom House Square, and the majestic City Hall. The event is renowned for its exceptional local support, with enthusiastic crowds cheering participants on throughout the route. Participants are required to complete the course within three hours. Source

FAQ

When is the 2026 Belfast City Half Marathon?

The 2026 Belfast City Half Marathon will be held on Sunday September 20, 2026.

Historical Weather

Based on 12 years of data
Avg Temp
60°F
L:54° H:60°
RunScore
8
Conditions
Rain Freq
67%
8 of 12 yrs
Wind10mph
Dew49°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScore
2025
clear-day
51°/58°Light
8
2024
partly-cloudy-day
55°/61°-
9
2023
rain
57°/61°Light
8
2022
partly-cloudy-day
52°/61°Light
9
2021
cloudy
50°/57°Light
8
2019
clear-day
61°/63°Light
8
2018
clear-day
48°/54°Light
7
2017
partly-cloudy-day
54°/61°Light
8
2016
partly-cloudy-day
54°/66°-
9
2015
partly-cloudy-day
54°/59°Light
8
2014
partly-cloudy-day
57°/61°-
8
2013
partly-cloudy-day
61°/66°-
8