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Great Bristol Half Marathon 2017 weather forecast

Runners taking part in a half marathon

Sun 17 Sep 2017

The Great Bristol Half Marathon on 17 September has become a long-held tradition in the national running calendar. Over 10,000 runners take part each year, making this a must do event with an atmosphere second to none.

The course starts at Bristol's historic Harbourside, taking in views around Bristol before returning to the Harbourside for the finish.

Check the official Great Bristol Half Marathon website for more information.

You can check the weather forecast for other events through the Events calendar.

  • Light shower day 16 °C

    13 °C

  • Cloudy 17 °C

    14 °C

  • Cloudy 23 °C

    15 °C

  • Light shower day 24 °C

    15 °C

  • Cloudy 22 °C

    15 °C

  • Cloudy 23 °C

    15 °C

  • Cloudy 21 °C

    14 °C

Thursday (Thursday 24 May 2018)
Now 23:00
Warnings
Heavy rain Heavy shower night
90% 60%
Temperature (°C)
14 ° 14 °
Show detail
Feels like temperature (°C)
14 ° 14 °
Wind direction, speed & gust (mph)
NNW 4 8 NNW 3 10
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor)
M G
Humidity
91% 91%
UV index
Sunrise: 05:07 Sunset: 21:08 Moon phase: First quarter Air pollution: 3 Pollen: L
Friday (Friday 25 May 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
Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Overcast Overcast Cloudy Cloudy Overcast Cloudy Cloudy Overcast Overcast Cloudy Cloudy Sunny intervals Sunny intervals Sunny intervals Sunny day Clear night Partly cloudy night
10% 10% 10% 10% 10% 10% 10% 10% 20% 10% 10% 20% 10% 10% 10% 10% 10% 10% <5% <5% <5% <5% <5% <5%
Temperature (°C)
14 ° 14 ° 14 ° 13 ° 13 ° 13 ° 13 ° 13 ° 13 ° 14 ° 14 ° 14 ° 15 ° 15 ° 15 ° 16 ° 16 ° 16 ° 17 ° 17 ° 16 ° 16 ° 15 ° 15 °
Show detail
Feels like temperature (°C)
14 ° 14 ° 13 ° 13 ° 13 ° 13 ° 13 ° 13 ° 13 ° 13 ° 13 ° 14 ° 14 ° 15 ° 15 ° 15 ° 16 ° 16 ° 16 ° 16 ° 16 ° 16 ° 15 ° 15 °
Wind direction, speed & gust (mph)
NNW 3 9 N 4 11 NNE 5 14 NNE 6 15 NNE 5 13 NNE 5 13 NNE 5 12 NNE 5 11 NNE 6 11 NNE 6 11 N 6 11 NNE 5 10 N 5 10 NNE 5 10 N 5 11 N 5 10 N 5 10 N 5 10 N 5 10 NNE 5 10 NNE 5 10 NNE 5 10 NNE 5 11 NNE 5 11
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor)
G G M G G G G G G G G G G G G G G G VG VG VG G G G
Humidity
91% 90% 89% 88% 89% 89% 89% 91% 90% 88% 88% 86% 84% 82% 82% 81% 79% 78% 78% 77% 78% 82% 85% 88%
UV index
1 1 1 2 3 3 4 4 4 3 3 2 1 1 1 1
Sunrise: 05:06 Sunset: 21:09 Moon phase: Waxing gibbous Air pollution: 3 Pollen: L
Saturday (Saturday 26 May 2018)
00:00 01:00 04:00 07:00 10:00 13:00 16:00 19:00 22:00
Warnings
Cloudy Cloudy Cloudy Overcast Light rain Cloudy Cloudy Cloudy Partly cloudy night
<5% <5% 10% 10% 40% 10% 30% 10% 10%
Temperature (°C)
15 ° 14 ° 14 ° 14 ° 16 ° 20 ° 23 ° 23 ° 20 °
Show detail
Feels like temperature (°C)
14 ° 14 ° 13 ° 13 ° 15 ° 18 ° 21 ° 21 ° 17 °
Wind direction, speed & gust (mph)
NE 5 12 NNE 5 12 NNE 6 14 NE 8 17 NE 9 18 NE 11 23 ENE 12 25 ENE 11 22 ENE 13 28
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor)
G G G G G G G G VG
Humidity
89% 91% 94% 94% 85% 73% 66% 67% 72%
UV index
1 3 5 3 1
Sunrise: 05:05 Sunset: 21:10 Moon phase: Waxing gibbous Air pollution: 5 Pollen: M
Sunday (Sunday 27 May 2018)
01:00 04:00 07:00 10:00 13:00 16:00 19:00 22:00
Warnings
Light shower night Light shower night Sunny intervals Sunny intervals Light shower day Heavy shower day Light shower day Heavy shower night
30% 30% 10% 10% 30% 60% 30% 50%
Temperature (°C)
17 ° 15 ° 15 ° 20 ° 23 ° 23 ° 22 ° 19 °
Show detail
Feels like temperature (°C)
15 ° 14 ° 14 ° 18 ° 21 ° 22 ° 22 ° 19 °
Wind direction, speed & gust (mph)
ENE 12 25 NE 10 22 NE 9 20 ENE 11 23 E 12 25 ESE 9 19 ESE 8 17 ESE 6 12
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor)
VG VG G VG VG G G G
Humidity
73% 78% 83% 76% 70% 70% 72% 84%
UV index
1 4 6 2 1
Sunrise: 05:04 Sunset: 21:11 Moon phase: Waxing gibbous Air pollution: 4 Pollen: L
Monday (Monday 28 May 2018)
01:00 04:00 07:00 10:00 13:00 16:00 19:00 22:00
Warnings
Light shower night Light shower night Cloudy Cloudy Cloudy Cloudy Light shower day Cloudy
40% 40% 20% 10% 10% 10% 30% 10%
Temperature (°C)
17 ° 16 ° 16 ° 17 ° 20 ° 21 ° 21 ° 19 °
Show detail
Feels like temperature (°C)
17 ° 16 ° 15 ° 17 ° 20 ° 21 ° 21 ° 19 °
Wind direction, speed & gust (mph)
E 7 14 NE 5 10 NE 6 13 NE 7 15 NE 6 15 NNE 7 16 NNE 6 14 ENE 6 12
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor)
G G G G G G VG G
Humidity
87% 91% 91% 87% 78% 73% 73% 83%
UV index
1 3 6 3 1
Sunrise: 05:03 Sunset: 21:13 Moon phase: Waxing gibbous Air pollution: 4 Pollen: M
Tuesday (Tuesday 29 May 2018)
01:00 04:00 07:00 10:00 13:00 16:00 19:00 22:00
Warnings
Cloudy Cloudy Overcast Overcast Cloudy Cloudy Cloudy Light shower night
10% 10% 10% 10% 10% 10% 20% 30%
Temperature (°C)
17 ° 16 ° 15 ° 17 ° 20 ° 22 ° 21 ° 19 °
Show detail
Feels like temperature (°C)
17 ° 15 ° 14 ° 16 ° 19 ° 21 ° 21 ° 19 °
Wind direction, speed & gust (mph)
NNE 6 12 NNE 6 13 NE 8 17 NNE 9 19 NE 8 19 ENE 9 19 NE 8 15 ENE 7 13
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor)
G G G G G VG VG VG
Humidity
90% 92% 90% 85% 77% 70% 74% 84%
UV index
1 4 5 3 1
Sunrise: 05:02 Sunset: 21:14 Moon phase: Full
Wednesday (Wednesday 30 May 2018)
01:00 04:00 07:00 10:00 13:00 16:00 19:00 22:00
Warnings
Partly cloudy night Cloudy Cloudy Light shower day Cloudy Sunny intervals Light shower day Partly cloudy night
10% 10% 10% 30% 10% 10% 30% 10%
Temperature (°C)
17 ° 16 ° 15 ° 17 ° 19 ° 21 ° 20 ° 18 °
Show detail
Feels like temperature (°C)
16 ° 15 ° 15 ° 16 ° 19 ° 20 ° 20 ° 17 °
Wind direction, speed & gust (mph)
ENE 7 13 ENE 7 13 ENE 7 14 ENE 8 16 E 8 16 E 8 17 SE 7 15 E 6 12
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor)
G G G G G VG VG G
Humidity
90% 93% 92% 87% 79% 74% 75% 85%
UV index
1 3 5 3 1
Sunrise: 05:01 Sunset: 21:15 Moon phase: Full
< Bristol last 24 hours Issued at:

17 September - Will you be cheering on the Great Bristol Half Marathon competitors? Check the weather forecast.

Weather for runners

Runners will be looking for a fine day to help them get around the course. A mild, but not hot, day with a light breeze will be wanted by both runners and spectators alike.

Back to the events calendar.

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