The 2026 Belfast City Half Marathon has concluded.Share your finish

Belfast City Half Marathon

Race complete
Belfast, Northern Ireland, UK · September 20, 2026
partly-cloudy-day57°·59° high·Breezy·Dry
7
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Race Day Weather

partly-cloudy-day
57°at start
60° high
Breezy
Dry
Your goal
0:00:00

Mild conditions, strategic pacing required

Runners will face temperatures starting at 56°F and rising to 60°F, with humidity at 67%. A steady crosswind will affect performance in several segments, particularly with a headwind from miles 8 to 10. Adjusting pace during this stretch is crucial, while the tailwind on the final mile may provide a boost. Hydration should be prioritized, especially with the humidity present.

clear-night8
clear-day8
partly-cloudy-day8
partly-cloudy-day7
partly-cloudy-day7
partly-cloudy-day7
partly-cloudy-day7
partly-cloudy-day7

Pace Calculator

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Race Plan

Get your personalized Belfast City Half Marathon race plan

A mile-by-mile breakdown of where your time goes, weather-adjusted splits, fueling timeline with aid stations, packing checklist, carb tracker, spectator guide, all built around your goal and race-day conditions.

Race Pace
Weather Splits
Nutrition
Gear & Packing
T-Minus
Carb Tracker
Spectator Guide
Race Band

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.

Race weekend

Sunday, September 20
9:00 AMHalf Marathon (13.1 mi)
Sunday, November 15
5K Fun Run (3.1 mi)
Sunday, May 2
9:00 AMMarathon (26.2 mi)
9:00 AM8M (8.0 mi)
Sunday, June 20
Women 10K (6.2 mi)

FAQ

When is the 2026 Belfast City Half Marathon?

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

What is the time limit for the Belfast City Half Marathon?

The time limit for the Belfast City Half Marathon is 3 hours.

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 56°F with a 0% chance of rain.

Historical Weather

Based on 13 years of data
Avg Temp
56°F
L:54° H:57°
RunScore
8
Conditions
Rain Freq
8%
1 of 13 yrs
Wind9mph
Dew49°F

Temperature History

Range of temperatures during race hours for each year.

Detailed History

YearConditionsLow / HighRainScoreResults
2026
partly-cloudy-day
54°/59°-
8
2025
clear-day
51°/52°-
10
2024
partly-cloudy-day
55°/58°-
7
2023
rain
57°/59°Light
7
2022
partly-cloudy-day
52°/57°-
9
2021
cloudy
50°/54°-
9
2019
clear-day
61°/61°-
6
2018
clear-day
48°/50°-
10
2017
partly-cloudy-day
54°/56°-
8
2016
partly-cloudy-day
54°/60°-
8
2015
partly-cloudy-day
54°/55°-
9
2014
partly-cloudy-day
57°/60°-
7
2013
partly-cloudy-day
61°/63°-
6