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Great South Run 2018 weather forecast

Runners in a road race

Runners competing in a road race

Sun 21 Oct 2018

This year's Great South Run takes place on 21 October in the naval city of Portsmouth.

Starting amid a sea of colour on Clarence Esplanade and with a beautiful, flat course that takes runners through the Portsmouth Historic Dockyard and along a route filed with bands and music, it's no wonder this is one of the world's leading 10 mile running events.

For runners, joggers and walkers, setting PB's, raising money for charity and getting fit, the Great South Run is part of a festival of sport with up to 30,000 people taking part in events across the weekend, including the Junior & Mini Great South Run and the Great South Run 5k, the day before the 10 mile event.

Runners will be hoping for cool, cloudy conditions with a slight breeze. Check the Portsmouth weather to help prepare for the event.

Back to the  events calendar.

  • Sunny day 26 °C

    18 °C

  • Sunny day 25 °C

    16 °C

  • Sunny intervals 21 °C

    16 °C

  • Sunny day 22 °C

    15 °C

  • Sunny day 24 °C

    16 °C

  • Sunny intervals 23 °C

    15 °C

  • Sunny intervals 23 °C

    16 °C

Sunday (Sunday 15 July 2018)
Now 23:00
Warnings
Clear night Clear night
<5% <5%
Temperature (°C)
22 ° 22 °
Show detail
Feels like temperature (°C)
21 ° 21 °
Wind direction, speed & gust (mph)
WSW 9 19 W 8 17
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor)
VG VG
Humidity
62% 59%
UV index
Sunrise: 05:08 Sunset: 21:12 Moon phase: New Air pollution: 3 Pollen: L
Monday (Monday 16 July 2018)
00:00 01:00 02:00 03:00 04:00 05:00 06:00 07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00
Warnings
Clear night Clear night Clear night Clear night Clear night Clear night Sunny day Sunny day Sunny day Sunny day Sunny day Sunny day Sunny day Sunny day Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Cloudy Sunny intervals Sunny day Clear night Clear night
<5% <5% <5% <5% <5% <5% <5% <5% <5% <5% <5% <5% <5% <5% <5% <5% <5% <5% <5% <5% <5% <5% <5% <5%
Temperature (°C)
21 ° 21 ° 20 ° 19 ° 19 ° 18 ° 18 ° 18 ° 19 ° 21 ° 23 ° 24 ° 24 ° 25 ° 25 ° 24 ° 24 ° 24 ° 23 ° 22 ° 22 ° 21 ° 20 ° 19 °
Show detail
Feels like temperature (°C)
21 ° 20 ° 20 ° 19 ° 18 ° 18 ° 18 ° 18 ° 19 ° 21 ° 23 ° 23 ° 23 ° 23 ° 23 ° 22 ° 22 ° 21 ° 21 ° 20 ° 20 ° 19 ° 18 ° 17 °
Wind direction, speed & gust (mph)
WNW 7 15 NW 5 12 NW 5 11 NW 6 12 NW 5 13 NW 5 11 NW 5 10 NW 6 10 NW 5 10 NW 5 8 WNW 4 9 W 6 12 WSW 7 14 WSW 9 16 WSW 10 19 WSW 12 21 WSW 12 21 WSW 12 21 WSW 12 22 W 12 21 WNW 11 18 W 10 16 WNW 10 18 WNW 10 18
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor)
G G G G G G G G G G G G VG VG VG VG VG VG VG VG VG VG VG VG
Humidity
60% 62% 65% 67% 70% 73% 74% 73% 67% 62% 53% 49% 43% 40% 40% 44% 43% 47% 55% 62% 58% 62% 60% 59%
UV index
1 1 2 4 5 5 6 7 6 5 4 3 2 1 1 1
Sunrise: 05:09 Sunset: 21:11 Moon phase: Waxing crescent Air pollution: 3 Pollen: L
Tuesday (Tuesday 17 July 2018)
00:00 01:00 04:00 07:00 10:00 13:00 16:00 19:00 22:00
Warnings
Partly cloudy night Partly cloudy night Partly cloudy night Sunny day Sunny intervals Cloudy Sunny intervals Sunny day Partly cloudy night
<5% <5% <5% <5% <5% <5% <5% <5% <5%
Temperature (°C)
18 ° 18 ° 16 ° 16 ° 19 ° 21 ° 21 ° 20 ° 18 °
Show detail
Feels like temperature (°C)
16 ° 16 ° 15 ° 15 ° 18 ° 18 ° 17 ° 17 ° 17 °
Wind direction, speed & gust (mph)
WNW 10 17 WNW 9 16 NW 8 14 WNW 6 10 W 8 16 WSW 12 22 WSW 14 26 WSW 13 24 WSW 10 17
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor)
VG VG VG G VG VG VG VG VG
Humidity
61% 62% 70% 73% 57% 53% 53% 62% 74%
UV index
1 4 7 4 1
Sunrise: 05:10 Sunset: 21:10 Moon phase: Waxing crescent Air pollution: 2 Pollen: L
Wednesday (Wednesday 18 July 2018)
01:00 04:00 07:00 10:00 13:00 16:00 19:00 22:00
Warnings
Cloudy Partly cloudy night Sunny intervals Sunny day Sunny day Sunny day Sunny day Clear night
10% <5% <5% <5% <5% <5% <5% <5%
Temperature (°C)
17 ° 16 ° 17 ° 19 ° 20 ° 21 ° 21 ° 18 °
Show detail
Feels like temperature (°C)
17 ° 16 ° 17 ° 19 ° 19 ° 19 ° 19 ° 18 °
Wind direction, speed & gust (mph)
W 7 11 NW 4 7 NW 3 6 SW 5 11 SW 8 17 SW 9 19 SW 8 16 WSW 6 11
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor)
VG VG VG VG VG VG VG VG
Humidity
80% 81% 75% 62% 54% 50% 54% 72%
UV index
1 4 6 4 1
Sunrise: 05:11 Sunset: 21:09 Moon phase: Waxing crescent Air pollution: 2 Pollen: L
Thursday (Thursday 19 July 2018)
01:00 04:00 07:00 10:00 13:00 16:00 19:00 22:00
Warnings
Partly cloudy night Partly cloudy night Sunny intervals Sunny intervals Sunny intervals Sunny day Sunny day Clear night
<5% <5% <5% <5% <5% <5% <5% 10%
Temperature (°C)
17 ° 15 ° 16 ° 20 ° 23 ° 23 ° 23 ° 20 °
Show detail
Feels like temperature (°C)
16 ° 15 ° 16 ° 20 ° 22 ° 22 ° 21 ° 19 °
Wind direction, speed & gust (mph)
NW 5 10 NNW 5 9 N 4 8 NNW 4 10 S 6 16 SW 7 17 S 9 17 NNW 8 13
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor)
VG G G VG VG VG VG VG
Humidity
77% 83% 78% 58% 46% 43% 49% 67%
UV index
1 5 7 4 1
Sunrise: 05:13 Sunset: 21:08 Moon phase: First quarter Air pollution: 4 Pollen: L
Friday (Friday 20 July 2018)
01:00 04:00 07:00 10:00 13:00 16:00 19:00 22:00
Warnings
Clear night Clear night Sunny intervals Sunny day Sunny intervals Cloudy Sunny intervals Cloudy
10% 10% 10% 10% 10% 10% 10% 10%
Temperature (°C)
18 ° 16 ° 17 ° 20 ° 22 ° 22 ° 21 ° 19 °
Show detail
Feels like temperature (°C)
17 ° 16 ° 16 ° 19 ° 21 ° 20 ° 20 ° 18 °
Wind direction, speed & gust (mph)
NNE 7 11 NNE 7 11 N 7 11 NNW 7 13 NW 8 19 SE 10 20 N 10 18 N 9 15
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor)
VG VG G G VG VG VG VG
Humidity
69% 74% 73% 65% 51% 55% 60% 73%
UV index
1 4 6 3 1
Sunrise: 05:14 Sunset: 21:07 Moon phase: First quarter
Saturday (Saturday 21 July 2018)
01:00 04:00 07:00 10:00 13:00 16:00 19:00 22:00
Warnings
Partly cloudy night Cloudy Cloudy Cloudy Sunny intervals Sunny intervals Sunny intervals Partly cloudy night
<5% 10% 10% 10% 10% 10% <5% <5%
Temperature (°C)
17 ° 16 ° 17 ° 20 ° 22 ° 22 ° 21 ° 19 °
Show detail
Feels like temperature (°C)
16 ° 15 ° 16 ° 19 ° 21 ° 21 ° 20 ° 19 °
Wind direction, speed & gust (mph)
NNE 9 14 NNE 8 13 NNE 8 13 N 8 15 N 8 18 NW 9 18 NNW 10 17 W 8 13
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor)
VG VG VG VG VG VG VG VG
Humidity
79% 84% 82% 69% 59% 56% 64% 77%
UV index
1 4 6 3 1
Sunrise: 05:15 Sunset: 21:06 Moon phase: First quarter
< Portsmouth last 24 hours Issued at:

21 October - What conditions will the runners be facing as they complete the Great South Run in Portsmouth?

To find out more about the race and how to enter, visit the  Great South Run official website.

 

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