Great South Run
Race Day Weather
Cool conditions, moderate wind
Runners will face temperatures starting at 56°F and rising to 60°F. Moderate winds from the SSE at 13 mph with gusts up to 24 mph will provide a slight challenge. With humidity at 78%, it's advisable for runners to stay hydrated and consider a conservative pace to maintain energy throughout the race.
Pace Calculator
The Great South Run is an annual 10-mile road race held in Portsmouth, England, renowned for its flat and fast course that attracts runners of all levels. Participants enjoy scenic coastal views and pass iconic landmarks such as the Historic Dockyard, Spinnaker Tower, and Southsea Castle. The event fosters a vibrant atmosphere, with enthusiastic local support and entertainment along the route, making it a highlight in the UK's running calendar. Source
Historical Weather
Temperature History
Range of temperatures during race hours for each year.
Detailed History
| Year | Conditions | Low / High | Rain | Dew Point | Score |
|---|---|---|---|---|---|
2025 |  | 58°/59° | Light | 58° | |
2024 | | 60°/62° | Light | 58° | |
2023 |  | 50°/53° | - | 34° | |
2022 | | 58°/61° | Light | 51° | |
2021 | | 58°/64° | Light | 54° | |
2019 | | 50°/55° | - | 45° | |
2018 | | 57°/64° | - | 54° | |
2017 | | 53°/57° | - | 44° | |
2016 | | 50°/54° | - | 43° | |
2015 | | 49°/55° | Light | 43° | |
2014 | | 61°/61° | Light | 59° | |
2013 | | 59°/61° | Light | 56° | |
2012 | | 43°/50° | Light | 44° | |
2011 | | 59°/60° | Light | 58° | |
2010 | | 46°/52° | - | 38° | |
2009 | | 58°/61° | - | 52° | |
2008 | | 54°/57° | Light | 55° | |
2007 |  | 57°/58° | Light | 57° | |
2006 | | 61°/63° | - | 59° | |
2005 | | 56°/61° | - | 46° |