Belfast City Half Marathon
Race Day Weather
Mild conditions, adjust for wind
Runners will face a temperature trend starting at 56°F and finishing at 58°F, with light winds from the WSW reaching up to 11 mph. Humidity will be high at 84%, prompting the need for conservative pacing. The toughest segments will be Miles 6 and 8 with headwinds, while a tailwind will assist in Miles 4-5 and 13. A light rain is possible, so a throwaway layer may be beneficial before the race.
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Race Info
The Belfast City Half Marathon is Northern Ireland's largest half marathon, run each September in Belfast. It starts and finishes on Ormeau Embankment and covers all four areas of the city: north, south, east and west. The route passes the Harland and Wolff cranes, Custom House Square and City Hall. Runners have three hours to finish. As of 2026 the half marathon runs as a standalone event, separate from the Belfast City Marathon weekend, which has moved to a new May date at Stormont.
