www.greatrun.org

AJ Bell Great South Run

Portsmouth, South East, United Kingdom

calendar_today 18 Oct, 2026

About the Event

Be part of something extraordinary at the AJ Bell Great South Run on October 18, 2026. As one of the most beloved 10-mile events globally, it offers a uniquely supportive environment where every runner is cheered on by Portsmouth's enthusiastic supporters. The fast, flat course is ideal for PBs, while the vibrant atmosphere—complete with personalized race numbers and entertainment zones—makes it unforgettable for all abilities. Secure your spot early to enjoy saver pricing and become part of this iconic running tradition.

Races Offered

Running-10 Mile

Oct 18, 2026

straighten

Distance — 16.1K

terrain

Type — —

timer

95 days remaining

Weather History

These values represent the 3-year monthly averages for October in Portsmouth.

thermostat Temperature

10.9° / 15.6°

wb_sunny Feels like

7.7° / 12.8°

light_mode Avg sunshine hours

6h 28m

water_drop Avg rainfall

4.0 mm

ac_unit Avg snowfall

—

air Avg wind speed

16.7 km/h (Gentle breeze)

opacity Sweat loss rate

Low

terrain Course conditions

Firm and slightly soft

sunny Max UV Index

Low (2.8)

humidity_mid Humidity

82.9%

wb_twilight Sunrise

07:29

nightlight Sunset

18:10

About Portsmouth

Learn more about the host city, Portsmouth.

Portsmouth is a large city in the county of Hampshire, on the south coast of England. Portsmouth plays a major role in British history, especially naval history. Its rich heritage offers a variety of attractions, including the Historical Dockyard, which houses some of the most historical warships in the world – HMS Victory, Lord Nelson's flagship used at the Battle of Trafalgar in 1805, and the Mary Rose, a Tudor-era warship. Portsmouth has two cathedrals, including the Romanesque Portsmouth Cathedral, 12 museums, most of which are free, and two theatres. The city offers excellent shopping facilities in the Gunwharf Quays complex, home to a variety of designer stores including Ralph Lauren, Hugo Boss and Barbour, as well as the striking 557 ft (170 m) landmark Spinnaker Tower, which offers excellent views of the Solent and City.