This website uses cookies. Read about how we use cookies.

Close window

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.

  • Overcast 13 °C

    12 °C

  • Light rain 16 °C

    12 °C

  • Cloudy 14 °C

    12 °C

  • Light shower day 14 °C

    11 °C

  • Cloudy 13 °C

    10 °C

  • Heavy rain 16 °C

    13 °C

  • Cloudy 16 °C

    12 °C

Wednesday (Wednesday 18 October 2017)
Now 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
Light shower day Cloudy Overcast Overcast Overcast Light rain Light rain Overcast Overcast Overcast Cloudy Cloudy Cloudy Cloudy
40% 20% 20% 20% 10% 50% 40% 10% 10% 10% 10% <5% 10% 10%
Temperature (°C)
11 ° 11 ° 11 ° 12 ° 12 ° 12 ° 12 ° 13 ° 13 ° 13 ° 13 ° 13 ° 13 ° 12 °
Show detail Show detail
Feels like temperature (°C) Expand
10 ° 10 ° 11 ° 11 ° 12 ° 12 ° 13 ° 13 ° 13 ° 13 ° 13 ° 13 ° 12 ° 12 °
Wind direction, speed & gust (mph) Expand
ENE 6 12 ENE 6 13 ENE 5 11 ENE 5 11 E 4 8 E 2 5 ENE 1 3 ENE 1 3 S 1 3 SSE 2 4 SSE 2 5 SE 2 7 SE 3 7 SE 4 10
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
M M M M M M P M M M M M M M
Humidity Expand
93% 93% 91% 92% 93% 94% 96% 96% 96% 96% 96% 95% 96% 96%
UV index Expand
1 1 1 1 1 1 1 1 1
Sunrise: 07:39 Sunset: 18:12 Moon phase: Waning crescent Air pollution: 2
Thursday (Thursday 19 October 2017)
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
Partly cloudy night Partly cloudy night Partly cloudy night Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Light rain Light rain Light rain Light rain Cloudy Cloudy Cloudy Cloudy Light rain Light rain Heavy rain Heavy rain Heavy rain Light shower night
<5% <5% <5% 10% 10% 10% 10% 10% 10% 10% 50% 50% 50% 50% 10% 10% 10% 10% 50% 50% 90% 90% 80% 30%
Temperature (°C)
12 ° 12 ° 12 ° 12 ° 12 ° 12 ° 12 ° 12 ° 12 ° 13 ° 13 ° 13 ° 14 ° 14 ° 15 ° 15 ° 15 ° 15 ° 15 ° 14 ° 14 ° 14 ° 14 ° 14 °
Show detail Show detail
Feels like temperature (°C) Expand
12 ° 11 ° 12 ° 12 ° 12 ° 12 ° 12 ° 12 ° 12 ° 12 ° 13 ° 13 ° 13 ° 14 ° 14 ° 14 ° 14 ° 14 ° 13 ° 13 ° 12 ° 12 ° 12 ° 11 °
Wind direction, speed & gust (mph) Expand
SE 4 11 SE 5 13 SE 4 11 SE 4 9 SE 3 8 ESE 3 7 ESE 3 8 ESE 4 9 SE 5 11 SE 4 11 SE 4 11 SE 4 11 SSE 5 11 SSE 6 12 SSE 7 14 SSE 8 16 SSE 8 18 SSE 9 20 SSE 9 21 SSE 11 26 SSE 14 32 SSE 15 33 SSE 14 32 S 13 29
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
M M M M M M M M M M M M M M G G G G G G M G VG VG
Humidity Expand
97% 96% 96% 96% 96% 96% 96% 97% 96% 95% 95% 95% 94% 91% 88% 85% 83% 83% 83% 85% 87% 89% 88% 86%
UV index Expand
1 1 1 1 1 1 1 1 1 1 1
Sunrise: 07:40 Sunset: 18:09 Moon phase: New Air pollution: 2
Friday (Friday 20 October 2017)
00:00 01:00 04:00 07:00 10:00 13:00 16:00 19:00 22:00
Warnings
Cloudy Light rain Light shower night Overcast Cloudy Cloudy Cloudy Cloudy Light shower night
20% 90% 40% 60% 10% 10% 10% 10% 50%
Temperature (°C)
13 ° 13 ° 13 ° 12 ° 12 ° 13 ° 13 ° 12 ° 13 °
Show detail Show detail
Feels like temperature (°C) Expand
11 ° 10 ° 10 ° 9 ° 9 ° 11 ° 11 ° 11 ° 11 °
Wind direction, speed & gust (mph) Expand
S 14 31 S 14 31 SW 15 34 W 17 36 WSW 14 29 WSW 13 27 SW 10 21 S 8 17 SSE 12 24
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
VG VG VG VG VG VG VG VG VG
Humidity Expand
85% 87% 88% 88% 83% 70% 64% 73% 79%
UV index Expand
1 2 1
Sunrise: 07:42 Sunset: 18:07 Moon phase: New Air pollution: 2
Saturday (Saturday 21 October 2017)
01:00 04:00 07:00 10:00 13:00 16:00 19:00 22:00
Warnings
Heavy shower night Clear night Light shower night Light shower day Light shower day Light shower day Light rain Cloudy
60% 20% 40% 40% 50% 40% 50% 20%
Temperature (°C)
14 ° 14 ° 13 ° 14 ° 14 ° 14 ° 13 ° 12 °
Show detail Show detail
Feels like temperature (°C) Expand
12 ° 11 ° 10 ° 10 ° 10 ° 10 ° 10 ° 9 °
Wind direction, speed & gust (mph) Expand
S 14 29 SSW 15 32 SSW 18 36 S 21 43 SSW 24 49 SSW 21 43 SW 18 37 WSW 17 35
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
G VG VG G G VG G G
Humidity Expand
90% 81% 76% 77% 74% 80% 80% 84%
UV index Expand
1 1 1
Sunrise: 07:44 Sunset: 18:05 Moon phase: New Air pollution: 2
Sunday (Sunday 22 October 2017)
01:00 04:00 07:00 10:00 13:00 16:00 19:00 22:00
Warnings
Light shower night Cloudy Cloudy Sunny intervals Sunny intervals Cloudy Partly cloudy night Partly cloudy night
50% 20% 10% <5% 10% 10% <5% <5%
Temperature (°C)
11 ° 11 ° 11 ° 11 ° 12 ° 12 ° 11 ° 11 °
Show detail Show detail
Feels like temperature (°C) Expand
8 ° 8 ° 8 ° 8 ° 9 ° 9 ° 9 ° 9 °
Wind direction, speed & gust (mph) Expand
WSW 19 39 W 17 34 W 16 32 W 17 34 W 19 38 W 17 36 W 14 28 W 12 23
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
G VG VG VG VG VG VG VG
Humidity Expand
84% 85% 84% 79% 73% 72% 75% 78%
UV index Expand
1 2 1
Sunrise: 07:46 Sunset: 18:03 Moon phase: New Air pollution: 2
Monday (Monday 23 October 2017)
01:00 04:00 07:00 10:00 13:00 16:00 19:00 22:00
Warnings
Partly cloudy night Cloudy Light rain Light rain Heavy rain Light shower day Light rain Light rain
10% 10% 50% 50% 70% 40% 50% 50%
Temperature (°C)
11 ° 11 ° 12 ° 13 ° 15 ° 15 ° 14 ° 14 °
Show detail Show detail
Feels like temperature (°C) Expand
8 ° 9 ° 10 ° 11 ° 13 ° 14 ° 13 ° 13 °
Wind direction, speed & gust (mph) Expand
W 11 21 WSW 10 18 SW 11 19 SW 11 21 SW 11 22 SSW 11 21 S 11 20 SSW 11 20
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
VG G G G G G G G
Humidity Expand
80% 89% 91% 90% 86% 86% 90% 92%
UV index Expand
1 1 1
Sunrise: 07:47 Sunset: 18:01 Moon phase: Waxing crescent
Tuesday (Tuesday 24 October 2017)
01:00 04:00 07:00 10:00 13:00 16:00 19:00 22:00
Warnings
Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy
20% 20% 10% 20% 20% 20% 10% 10%
Temperature (°C)
14 ° 13 ° 13 ° 14 ° 16 ° 16 ° 14 ° 13 °
Show detail Show detail
Feels like temperature (°C) Expand
12 ° 12 ° 12 ° 12 ° 14 ° 14 ° 13 ° 12 °
Wind direction, speed & gust (mph) Expand
SSW 10 19 SSW 10 19 SSW 10 18 SSW 10 20 SSW 12 23 SSW 12 22 SSW 10 19 SSW 10 19
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) Expand
G G G G G G G G
Humidity Expand
92% 93% 93% 90% 83% 81% 88% 89%
UV index Expand
1 1 1
Sunrise: 07:49 Sunset: 17:59 Moon phase: Waxing crescent
< 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.

If you're looking for content for your own website, take a look at our weather widget.

Follow us on

Facebook, Twitter, YouTube, Instagram, or Snapchat Facebook Follow @metoffice on Twitter YouTube Instagram Snapchat