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Great Bristol Half Marathon 2019 weather forecast

Runners taking part in a half marathon

Sun 15 Sep 2019

The Great Bristol Half Marathon on 15 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 rain 6 °C

    4 °C

  • Overcast 8 °C

    3 °C

  • Overcast 5 °C

    1 °C

  • Cloudy 5 °C

    2 °C

  • Sunny intervals 5 °C

    0 °C

  • Cloudy 5 °C

    1 °C

  • Cloudy 3 °C

    0 °C

Friday (Friday 18 January 2019)
Now 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 Overcast Light rain Light rain Heavy rain Light rain Light rain Light rain Light rain Light rain Heavy rain Cloudy Cloudy Cloudy Light rain
<5% <5% <5% <5% <5% <5% 10% 10% 10% 20% 50% 60% 80% 50% 60% 50% 50% 50% 80% 10% 10% 10% 50%
Temperature (°C)
1 ° 2 ° 2 ° 2 ° 2 ° 2 ° 2 ° 3 ° 4 ° 4 ° 5 ° 5 ° 5 ° 5 ° 5 ° 5 ° 5 ° 5 ° 5 ° 5 ° 5 ° 5 ° 5 °
Show detail
Feels like temperature (°C)
-1 ° 0 ° 0 ° 0 ° -1 ° -1 ° 0 ° 0 ° 1 ° 1 ° 1 ° 2 ° 1 ° 1 ° 1 ° 1 ° 1 ° 1 ° 1 ° 2 ° 2 ° 3 ° 3 °
Wind direction, speed & gust (mph)
SSE 4 9 SSE 4 12 SE 4 12 SE 5 13 SE 5 15 SE 6 17 SE 6 16 SE 7 19 SE 8 19 SE 9 20 SSE 10 23 SSE 12 26 SSE 12 28 SSE 13 30 SSE 13 29 SSE 12 28 SE 12 27 SE 11 24 SE 10 22 SE 10 22 SE 9 20 SE 8 17 SE 7 16
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor)
G VG VG VG VG VG VG G G G G G G G G G VG G G G G G G
Humidity
78% 71% 69% 68% 68% 69% 72% 73% 75% 77% 80% 81% 82% 83% 86% 88% 88% 90% 92% 93% 94% 94% 94%
UV index
1 1 1 1 1 1 1 1
Sunrise: 08:07 Sunset: 16:35 Moon phase: Waxing gibbous Air pollution: 2
Saturday (Saturday 19 January 2019)
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
Light rain Cloudy Cloudy Cloudy Cloudy Overcast Overcast Cloudy Cloudy Cloudy Cloudy Overcast Overcast Cloudy Cloudy Overcast Overcast Overcast Overcast Light rain Light rain Overcast Overcast Overcast
50% 10% 20% 10% 10% 20% 20% 10% 10% 10% 10% 10% 10% 10% 20% 20% 10% 20% 10% 40% 50% 10% 20% 10%
Temperature (°C)
6 ° 6 ° 6 ° 6 ° 6 ° 6 ° 6 ° 6 ° 6 ° 6 ° 6 ° 7 ° 7 ° 7 ° 8 ° 7 ° 7 ° 7 ° 7 ° 6 ° 6 ° 6 ° 6 ° 6 °
Show detail
Feels like temperature (°C)
3 ° 3 ° 3 ° 4 ° 4 ° 4 ° 4 ° 4 ° 4 ° 4 ° 4 ° 5 ° 6 ° 6 ° 6 ° 6 ° 6 ° 6 ° 5 ° 5 ° 5 ° 4 ° 4 ° 4 °
Wind direction, speed & gust (mph)
SE 7 16 SE 7 16 SE 7 15 SE 6 14 SE 6 14 SE 6 14 SE 6 13 SE 6 13 SE 6 14 SE 6 13 SE 5 12 SE 5 11 SE 5 11 SE 5 10 ESE 5 9 ESE 5 9 ESE 4 8 E 4 9 ENE 5 9 ENE 5 10 ENE 5 10 ENE 5 10 NE 5 10 NE 5 11
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor)
G VG VG VG G G G G G G M G G G G G G G G G G G G G
Humidity
93% 94% 93% 94% 94% 95% 94% 94% 94% 93% 94% 93% 91% 90% 90% 89% 90% 92% 93% 93% 93% 93% 93% 94%
UV index
1 1 1 1 1 1 1 1
Sunrise: 08:06 Sunset: 16:37 Moon phase: Full Air pollution: 2
Sunday (Sunday 20 January 2019)
00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
Warnings
Overcast Overcast Overcast Cloudy Overcast Overcast Cloudy Partly cloudy night
10% 10% 10% 10% 10% 10% 20% <5%
Temperature (°C)
5 ° 5 ° 4 ° 3 ° 5 ° 5 ° 4 ° 3 °
Show detail
Feels like temperature (°C)
4 ° 2 ° 2 ° 1 ° 2 ° 2 ° 2 ° 1 °
Wind direction, speed & gust (mph)
NE 5 11 NE 6 13 NNE 6 13 NNE 6 12 N 8 16 N 8 16 NNW 6 12 NNW 7 13
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor)
G G G G VG VG VG VG
Humidity
93% 94% 93% 93% 85% 79% 84% 85%
UV index
1 1 1
Sunrise: 08:05 Sunset: 16:39 Moon phase: Full Air pollution: 2
Monday (Monday 21 January 2019)
00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
Warnings
Partly cloudy night Clear night Clear night Sunny day Cloudy Cloudy Cloudy Cloudy
<5% <5% <5% <5% <5% <5% 10% 10%
Temperature (°C)
3 ° 2 ° 1 ° 1 ° 4 ° 5 ° 3 ° 3 °
Show detail
Feels like temperature (°C)
0 ° -1 ° -1 ° -1 ° 3 ° 3 ° 0 ° 0 °
Wind direction, speed & gust (mph)
NNW 6 12 NNW 6 12 NNW 4 8 NW 3 5 WSW 3 8 SW 6 12 S 7 13 S 11 20
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor)
VG VG VG G VG VG VG VG
Humidity
85% 86% 90% 92% 80% 72% 83% 79%
UV index
1 1 1
Sunrise: 08:04 Sunset: 16:40 Moon phase: Full Air pollution: 2
Tuesday (Tuesday 22 January 2019)
00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
Warnings
Overcast Heavy rain Light rain Sunny intervals Cloudy Sunny intervals Cloudy Clear night
30% 80% 50% 10% 10% 10% 10% 10%
Temperature (°C)
4 ° 5 ° 3 ° 3 ° 5 ° 5 ° 2 ° 1 °
Show detail
Feels like temperature (°C)
0 ° 1 ° 0 ° -1 ° 1 ° 2 ° 0 ° -2 °
Wind direction, speed & gust (mph)
S 12 23 SSW 14 28 WSW 10 20 NW 8 16 WNW 10 19 NE 8 16 NNW 6 11 WNW 6 11
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor)
G M G VG VG VG VG VG
Humidity
84% 87% 86% 88% 79% 74% 85% 89%
UV index
1 1 1
Sunrise: 08:03 Sunset: 16:42 Moon phase: Waning gibbous
Wednesday (Wednesday 23 January 2019)
00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
Warnings
Clear night Partly cloudy night Clear night Sunny intervals Sunny intervals Cloudy Cloudy Cloudy
<5% 10% 10% 10% 10% 10% 10% 10%
Temperature (°C)
0 ° 0 ° 0 ° 0 ° 4 ° 3 ° 2 ° 2 °
Show detail
Feels like temperature (°C)
-3 ° -3 ° -4 ° -2 ° 1 ° 0 ° -1 ° -2 °
Wind direction, speed & gust (mph)
WNW 6 10 NW 6 10 WNW 6 10 N 6 10 WNW 8 16 N 8 16 NW 8 14 WNW 8 15
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor)
VG VG VG VG VG VG VG VG
Humidity
91% 91% 91% 90% 80% 81% 85% 86%
UV index
1 1 1
Sunrise: 08:01 Sunset: 16:44 Moon phase: Waning gibbous
Thursday (Thursday 24 January 2019)
00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
Warnings
Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy
10% 10% 10% 10% 10% 10% 10% 10%
Temperature (°C)
1 ° 1 ° 1 ° 2 ° 3 ° 2 ° 2 ° 1 °
Show detail
Feels like temperature (°C)
-2 ° -3 ° -3 ° -2 ° -1 ° -2 ° -3 ° -3 °
Wind direction, speed & gust (mph)
WNW 9 16 NW 9 17 NW 10 19 NNW 12 22 NNE 14 26 N 13 25 N 12 22 N 12 21
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor)
VG VG VG VG VG VG VG VG
Humidity
87% 87% 87% 82% 77% 75% 77% 79%
UV index
1 1 1
Sunrise: 08:00 Sunset: 16:45 Moon phase: Waning gibbous
< Bristol last 24 hours Issued at:

15 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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