racecast.ioPartly cloudy throughout the day.
Details
Wind
12mph
Wind
13mph
Wind
13mph
Wind
13mph
Wind
13mph
Wind
13mph
Pre-Race
Race
Post-Race
Save yourself some pain, trust me. Squirrel's Nut Butter Anti Chafe Salve.
When you buy through our links, we may earn a commission.
Wanna to know when the weather changes? .
Race Overview
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.
WikipediaFAQ
When is the 2026 Great South Run?
The 2026 Great South Run will be held on Sunday October 18, 2026.
Great South Run Weather History
Great South Run Weather Averages
Average Temp: 54°, Average Low: 48°, Average High: 58°
| Time | 11AM | 12PM | 1PM | 2PM | 3PM | 4PM | 5PM |
|---|---|---|---|---|---|---|---|
| Temp | 55° | 56° | 57° | 58° | 58° | 57° | 57° |
| Feel | 55° | 56° | 57° | 58° | 57° | 57° | 56° |
| Rain | - | - | - | - | - | - | - |
| Wind | 13mph | 14mph | 14mph | 14mph | 14mph | 15mph | 14mph |
| Dew | 51° | 51° | 51° | 51° | 50° | 50° | 50° |
| RunScore |  | | | | | | |
Great South Run 2025
Oct 19, 2025
Partly cloudy throughout the day with rain.
Low: 57°, High: 60°, Heavy Rain
| Time | 11AM | 12PM | 1PM | 2PM | 3PM | 4PM | 5PM |
|---|---|---|---|---|---|---|---|
| Temp |  58° | 59° | 59° | 59° | 59° | 59° | 58° |
| Feel | 58° | 59° | 59° | 59° | 59° | 59° | 58° |
| Rain | light | light | light | light | light | light | light |
| Wind | 12mph | 13mph | 17mph | 16mph | 18mph | 18mph | 19mph |
| Dew | 57° | 58° | 58° | 58° | 57° | 57° | 57° |
| RunScore |  |  |  | | | | |
Great South Run 2024
Oct 20, 2024
Partly cloudy throughout the day with rain.
Low: 56°, High: 62°, Moderate Rain
| Time | 11AM | 12PM | 1PM | 2PM | 3PM | 4PM | 5PM |
|---|---|---|---|---|---|---|---|
| Temp | 60° | 61° | 62° | 62° | 61° | 60° |  61° |
| Feel | 60° | 61° | 62° | 62° | 61° | 60° | 61° |
| Rain | light | light | light | light | light | light | - |
| Wind | 27mph | 27mph | 26mph | 26mph | 21mph | 22mph | 21mph |
| Dew | 59° | 60° | 61° | 61° | 58° | 56° | 56° |
| RunScore | |  | | | | | |
Great South Run 2023
Oct 15, 2023
Clear conditions throughout the day.
Low: 39°, High: 53°
| Time | 11AM | 12PM | 1PM | 2PM | 3PM | 4PM | 5PM |
|---|---|---|---|---|---|---|---|
| Temp |  50° | 52° | 53° | 53° | 52° | 52° | 50° |
| Feel | 50° | 52° | 53° | 53° | 52° | 52° | 50° |
| Rain | - | - | - | - | - | - | - |
| Wind | 7mph | 9mph | 9mph | 10mph | 9mph | 9mph | 7mph |
| Dew | 39° | 37° | 35° | 33° | 31° | 31° | 33° |
| RunScore |  | | | | | | |
Great South Run 2022
Oct 15, 2022
Partly cloudy throughout the day with afternoon rain.
Low: 48°, High: 61°, Light Rain
| Time | 11AM | 12PM | 1PM | 2PM | 3PM | 4PM | 5PM |
|---|---|---|---|---|---|---|---|
| Temp | 61° | 58° | 60° | 61° | 60° | 60° | 60° |
| Feel | 61° | 58° | 60° | 61° | 60° | 60° | 60° |
| Rain | - | light | light | - | - | - | - |
| Wind | 22mph | 23mph | 20mph | 20mph | 22mph | 23mph | 25mph |
| Dew | 52° | 53° | 53° | 50° | 50° | 51° | 49° |
| RunScore | | | | | | | |
Great South Run 2021
Oct 16, 2021
Partly cloudy throughout the day with a chance of rain throughout the day.
Low: 53°, High: 64°, Light Rain
| Time | 11AM | 12PM | 1PM | 2PM | 3PM | 4PM | 5PM |
|---|---|---|---|---|---|---|---|
| Temp | 58° | 61° | 64° | 63° | 63° | 62° | 61° |
| Feel | 58° | 61° | 64° | 63° | 63° | 62° | 61° |
| Rain | - | - | light | - | - | - | - |
| Wind | 3mph | 4mph | 6mph | 8mph | 9mph | 10mph | 10mph |
| Dew | 55° | 56° | 54° | 55° | 54° | 54° | 54° |
| RunScore | | | | | | | |
Great South Run 2019
Oct 20, 2019
Partly cloudy throughout the day.
Low: 40°, High: 55°
| Time | 11AM | 12PM | 1PM | 2PM | 3PM | 4PM | 5PM |
|---|---|---|---|---|---|---|---|
| Temp | 50° | 51° | 53° | 54° | 55° | 54° | 53° |
| Feel | 50° | 51° | 53° | 54° | 55° | 54° | 53° |
| Rain | - | - | - | - | - | - | - |
| Wind | 11mph | 14mph | 12mph | 10mph | 11mph | 11mph | 8mph |
| Dew | 46° | 45° | 46° | 46° | 46° | 45° | 46° |
| RunScore | | | | | | | |
Great South Run 2018
Oct 21, 2018
Clearing in the afternoon.
Low: 44°, High: 64°
| Time | 11AM | 12PM | 1PM | 2PM | 3PM | 4PM | 5PM |
|---|---|---|---|---|---|---|---|
| Temp | 57° | 60° | 62° | 63° | 64° | 62° | 61° |
| Feel | 57° | 60° | 62° | 63° | 64° | 62° | 61° |
| Rain | - | - | - | - | - | - | - |
| Wind | 5mph | 6mph | 6mph | 9mph | 9mph | 10mph | 7mph |
| Dew | 54° | 53° | 54° | 55° | 54° | 55° | 55° |
| RunScore | | | | | | | |
Great South Run 2017
Oct 22, 2017
Becoming cloudy in the afternoon with rain.
Low: 49°, High: 57°, Light Rain
| Time | 11AM | 12PM | 1PM | 2PM | 3PM | 4PM | 5PM |
|---|---|---|---|---|---|---|---|
| Temp | 53° | 54° | 54° | 57° | 56° | 55° | 54° |
| Feel | 53° | 54° | 54° | 57° | 56° | 55° | 54° |
| Rain | - | - | - | - | - | - | - |
| Wind | 18mph | 20mph | 19mph | 19mph | 16mph | 18mph | 20mph |
| Dew | 43° | 41° | 41° | 43° | 45° | 48° | 49° |
| RunScore | | | | | | | |
Great South Run 2016
Oct 23, 2016
Clearing in the afternoon with morning rain.
Low: 44°, High: 54°, Light Rain
| Time | 11AM | 12PM | 1PM | 2PM | 3PM | 4PM | 5PM |
|---|---|---|---|---|---|---|---|
| Temp | 50° | 51° | 53° | 54° | 54° | 53° | 52° |
| Feel | 44° | 51° | 53° | 54° | 54° | 53° | 52° |
| Rain | - | - | - | - | - | - | - |
| Wind | 16mph | 16mph | 15mph | 16mph | 17mph | 14mph | 14mph |
| Dew | 44° | 44° | 44° | 43° | 42° | 42° | 42° |
| RunScore | | | | | | | |
Great South Run 2015
Oct 25, 2015
Partly cloudy throughout the day with rain.
Low: 39°, High: 55°, Light Rain
| Time | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM | 4PM |
|---|---|---|---|---|---|---|---|
| Temp | 49° | 53° | 55° | 55° | 54° | 55° | 52° |
| Feel | 49° | 53° | 55° | 55° | 54° | 55° | 52° |
| Rain | - | - | light | - | - | - | - |
| Wind | 2mph | 2mph | 4mph | 5mph | 5mph | 5mph | 8mph |
| Dew | 44° | 45° | 43° | 43° | 43° | 41° | 43° |
| RunScore | | | | | | | |
Great South Run 2014
Oct 24, 2014
Partly cloudy throughout the day with a chance of rain throughout the day.
Low: 52°, High: 61°, Light Rain
| Time | 11AM | 12PM | 1PM | 2PM | 3PM | 4PM | 5PM |
|---|---|---|---|---|---|---|---|
| Temp | 61° | 61° | 61° | 61° | 61° | 61° | 61° |
| Feel | 61° | 61° | 61° | 61° | 61° | 61° | 61° |
| Rain | - | - | light | - | - | - | - |
| Wind | 9mph | 9mph | 8mph | 7mph | 7mph | 7mph | 10mph |
| Dew | 59° | 59° | 59° | 59° | 59° | 59° | 58° |
| RunScore | | | | | | | |
Great South Run 2013
Oct 26, 2013
Partly cloudy throughout the day with rain.
Low: 58°, High: 61°, Light Rain
| Time | 11AM | 12PM | 1PM | 2PM | 3PM | 4PM | 5PM |
|---|---|---|---|---|---|---|---|
| Temp | 60° | 60° | 61° | 60° | 60° | 59° | 59° |
| Feel | 60° | 60° | 61° | 60° | 60° | 59° | 59° |
| Rain | - | - | light | - | - | - | - |
| Wind | 24mph | 25mph | 23mph | 23mph | 26mph | 27mph | 24mph |
| Dew | 56° | 57° | 57° | 57° | 57° | 56° | 55° |
| RunScore | | | | | | | |
Great South Run 2012
Oct 28, 2012
Partly cloudy throughout the day with rain.
Low: 34°, High: 50°, Light Rain
| Time | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM | 4PM |
|---|---|---|---|---|---|---|---|
| Temp | 43° | 46° | 48° | 48° | 50° | 50° | 50° |
| Feel | 40° | 42° | 43° | 44° | 44° | 45° | 45° |
| Rain | - | - | light | - | - | - | - |
| Wind | 5mph | 7mph | 11mph | 11mph | 14mph | 13mph | 12mph |
| Dew | 41° | 43° | 44° | 44° | 45° | 46° | 45° |
| RunScore | | | | | | | |
Great South Run 2011
Oct 30, 2011
Partly cloudy throughout the day with a chance of rain throughout the day.
Low: 58°, High: 60°, Light Rain
| Time | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM | 4PM |
|---|---|---|---|---|---|---|---|
| Temp | 60° | 59° | 59° | 59° | 59° | 59° | 59° |
| Feel | 60° | 59° | 59° | 59° | 59° | 59° | 59° |
| Rain | - | - | light | - | - | - | - |
| Wind | 10mph | 15mph | 17mph | 17mph | 16mph | 16mph | 14mph |
| Dew | 58° | 58° | 58° | 58° | 58° | 58° | 58° |
| RunScore | | | | | | | |
Great South Run 2010
Oct 24, 2010
Partly cloudy throughout the day with morning rain.
Low: 37°, High: 52°, Light Rain
| Time | 11AM | 12PM | 1PM | 2PM | 3PM | 4PM | 5PM |
|---|---|---|---|---|---|---|---|
| Temp | 46° | 48° | 49° | 51° | 52° | 51° | 50° |
| Feel | 41° | 45° | 45° | 51° | 52° | 51° | 50° |
| Rain | - | - | - | - | - | - | - |
| Wind | 9mph | 7mph | 10mph | 10mph | 10mph | 10mph | 8mph |
| Dew | 38° | 40° | 38° | 39° | 39° | 37° | 38° |
| RunScore | | | | | | | |
Great South Run 2009
Oct 25, 2009
Partly cloudy throughout the day.
Low: 55°, High: 61°
| Time | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM | 4PM |
|---|---|---|---|---|---|---|---|
| Temp | 59° | 60° | 61° | 60° | 60° | 60° | 58° |
| Feel | 59° | 60° | 61° | 60° | 60° | 60° | 58° |
| Rain | - | - | - | - | - | - | - |
| Wind | 23mph | 23mph | 23mph | 22mph | 22mph | 20mph | 23mph |
| Dew | 52° | 51° | 52° | 52° | 52° | 51° | 52° |
| RunScore | | | | | | | |
Great South Run 2008
Oct 26, 2008
Partly cloudy throughout the day with rain.
Low: 50°, High: 58°, Light Rain
| Time | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM | 4PM |
|---|---|---|---|---|---|---|---|
| Temp | 57° | 56° | 56° | 56° | 56° | 55° | 54° |
| Feel | 57° | 56° | 56° | 56° | 56° | 55° | 54° |
| Rain | - | - | light | - | - | - | - |
| Wind | 12mph | 8mph | 10mph | 11mph | 10mph | 10mph | 9mph |
| Dew | 57° | 55° | 55° | 55° | 55° | 53° | 53° |
| RunScore | | | | | | | |
Great South Run 2007
Oct 28, 2007
Partly cloudy throughout the day with a chance of rain throughout the day.
Low: 53°, High: 58°, Moderate Rain
| Time | 10AM | 11AM | 12PM | 1PM | 2PM | 3PM | 4PM |
|---|---|---|---|---|---|---|---|
| Temp | 58° | 57° | 58° | 58° | 58° | 58° | 58° |
| Feel | 58° | 57° | 58° | 58° | 58° | 58° | 58° |
| Rain | - | - | light | - | - | - | - |
| Wind | 22mph | 24mph | 21mph | 22mph | 22mph | 22mph | 21mph |
| Dew | 56° | 56° | 57° | 57° | 57° | 57° | 57° |
| RunScore | | | | | | | |
Great South Run 2006
Oct 26, 2006
Partly cloudy throughout the day with early morning rain.
Low: 52°, High: 63°, Light Rain
| Time | 11AM | 12PM | 1PM | 2PM | 3PM | 4PM | 5PM |
|---|---|---|---|---|---|---|---|
| Temp | 63° | 63° | 62° | 63° | 63° | 62° | 61° |
| Feel | 63° | 63° | 62° | 63° | 63° | 62° | 61° |
| Rain | - | - | - | - | - | - | - |
| Wind | 18mph | 18mph | 17mph | 19mph | 17mph | 17mph | 17mph |
| Dew | 60° | 60° | 60° | 60° | 59° | 59° | 57° |
| RunScore | | | | | | | |
Great South Run 2005
Oct 9, 2005
Partly cloudy throughout the day with rain clearing later.
Low: 46°, High: 61°, Light Rain
| Time | 11AM | 12PM | 1PM | 2PM | 3PM | 4PM | 5PM |
|---|---|---|---|---|---|---|---|
| Temp | 56° | 59° | 61° | 60° | 60° | 60° | 59° |
| Feel | 56° | 59° | 61° | 60° | 60° | 60° | 59° |
| Rain | - | - | - | - | - | - | - |
| Wind | 2mph | 5mph | 7mph | 8mph | 8mph | 8mph | 9mph |
| Dew | 47° | 48° | 48° | 45° | 45° | 45° | 45° |
| RunScore | | | | | | | |