Belfast City Half Marathon

Belfast, Ireland, UK · September 20, 2026
partly-cloudy-day57°·61° high·Breezy·Dry
8
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Race Day Weather

partly-cloudy-day
57°at start
61° high
Breezy
Dry

Cool start, mild tailwinds ahead

Runners will face a start temperature of 56°F, rising to 61°F by the end of the race. With wind speeds peaking at 13 mph from the southwest, headwinds will be felt during the first two miles and again from miles 8 to 9. Runners should adjust their pace early and stay hydrated, especially with humidity at 80%, and prepare for a mix of tailwinds during the middle segments to aid performance.

Race day forecast available in 105 days
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Distance: 13.1mi
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Race Info

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.

FAQ

When is the 2026 Belfast City Half Marathon?

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

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

The forecast calls for a high of 61°F and a low of 54°F with a 15% chance of rain.

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