Experience the vibrant energy of Northern Ireland's capital at the Belfast City Half Marathon on Sunday, September 20, 2026, a premier city race that showcases the very best of Belfast's landmarks and community spirit. Starting from the green expanse of Ormeau Park, the fast and flat 13.1-mile route guides you through the historic city centre, past iconic sights like the Titanic Quarter and the stunning waterfront, all amidst incredible crowd support that embodies the famous local warmth. As a key fixture in the Belfast City Marathon event series, this race offers world-class organization, a fantastic festival atmosphere, and the perfect opportunity to chase a personal best or enjoy a memorable running tour of the city. Whether you're a seasoned runner targeting a fast time or a first-timer soaking up the electric atmosphere, the event welcomes all abilities with open arms and a shared sense of celebration. With its central start and finish, seamless logistics, and the powerful camaraderie of thousands of fellow participants, the Belfast City Half Marathon delivers an unforgettable autumn running experience. Secure your entry for a September Sunday where your strides are cheered through the streets, and your finish line marks a proud achievement in the heart of this dynamic city.
Races Offered
Belfast City Half Marathon
Sep 20, 2026
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Distance —
21.1K
terrain
Type —
Running
timer
09:00
Weather History
These values represent the 3-year monthly averages for September in Belfast.
thermostatTemperature
10.0° / 16.1°
wb_sunnyFeels like
7.3° / 13.5°
light_mode
Avg sunshine hours
7h 38m
water_drop
Avg rainfall
3.7 mm
ac_unit
Avg snowfall
—
air
Avg wind speed
14.6 km/h (Gentle breeze)
opacity
Sweat loss rate
Low
terrain
Course conditions
Firm and slightly soft
sunny
Max UV Index
Moderate (3.5)
humidity_mid
Humidity
83.7%
wb_twilight
Sunrise
06:57
nightlight
Sunset
19:38
About Belfast
Learn more about the host city, Belfast.
Belfast is the capital and largest city of Northern Ireland. Most of it historically lay in County Antrim west of the River Lagan, with about a third on the east bank in County Down, but it's always been governed as a separate metropolis, with a population in 2020 of about 630,000. It's had a troubled history but is nowadays safe to visit and has the best-developed visitor facilities in Northern Ireland. And its situation means that Belfast can confidently claim to be the most fascinating city in both the United Kingdom and on the island of Ireland.
