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Cardiff Half Marathon 2017 weather forecast

Running the Cardiff Half Marathon

Sun 1 Oct 2017

The Cardiff University Cardiff Half Marathon takes place on Sunday 1 October.

The predominately flat route will take runners past the capital's most iconic landmarks over 13.1 miles.

The course begins outside Cardiff Castle and takes tens of thousands of runners past Cardiff City Stadium, through Penarth and towards Cardiff Bay. The course then heads to the north of Cardiff with a loop of Roath Park Lake before finishing at the Civic Centre in the heart of the city.

Runners will be looking for cool, dry conditions with a light breeze to make for the best conditions to complete the Cardiff Half Marathon.

Whether you are running the 13.1 miles or lining the streets through Cardiff, check the weather forecast below to prepare for the event.

Back to the events calendar.

  • Sunny intervals 12 °C

    7 °C

  • Heavy rain 10 °C

    7 °C

  • Cloudy 11 °C

    6 °C

  • Cloudy 11 °C

    5 °C

  • Cloudy 11 °C

    5 °C

  • Cloudy 11 °C

    7 °C

  • Cloudy 12 °C

    7 °C

Thursday (Thursday 26 April 2018)
Now 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00
Warnings
Sunny intervals Sunny day Sunny intervals Sunny day Sunny day Sunny day Sunny intervals Sunny day Sunny intervals Partly cloudy night Cloudy Cloudy
10% <5% <5% <5% <5% <5% <5% <5% <5% <5% 10% 10%
Temperature (°C)
11 ° 12 ° 12 ° 12 ° 12 ° 11 ° 11 ° 10 ° 10 ° 9 ° 9 ° 9 °
Show detail
Feels like temperature (°C)
8 ° 8 ° 9 ° 9 ° 9 ° 9 ° 8 ° 8 ° 8 ° 7 ° 8 ° 8 °
Wind direction, speed & gust (mph)
W 17 28 W 17 29 W 15 26 W 15 26 W 15 26 W 14 24 W 12 20 W 11 20 W 9 17 W 7 14 W 5 9 WSW 3 7
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor)
VG VG VG VG E VG VG E VG VG VG VG
Humidity
63% 59% 53% 58% 54% 60% 61% 62% 69% 75% 77% 79%
UV index
5 6 5 4 3 2 2 1 1
Sunrise: 05:55 Sunset: 20:27 Moon phase: Waxing gibbous Air pollution: 3 Pollen: M
Friday (Friday 27 April 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 Light rain Light rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Heavy rain Light rain Light rain Light rain Overcast Cloudy Overcast Overcast
10% 50% 60% 80% 90% ≥95% ≥95% ≥95% ≥95% ≥95% 90% 90% 90% 90% ≥95% 90% 80% 50% 60% 50% 20% 10% 10% 10%
Temperature (°C)
8 ° 8 ° 8 ° 8 ° 8 ° 8 ° 7 ° 7 ° 8 ° 8 ° 8 ° 8 ° 9 ° 9 ° 10 ° 10 ° 10 ° 10 ° 10 ° 9 ° 9 ° 9 ° 9 ° 8 °
Show detail
Feels like temperature (°C)
8 ° 8 ° 7 ° 6 ° 6 ° 5 ° 5 ° 5 ° 5 ° 5 ° 5 ° 5 ° 6 ° 6 ° 7 ° 7 ° 7 ° 7 ° 7 ° 7 ° 7 ° 6 ° 6 ° 6 °
Wind direction, speed & gust (mph)
SSW 3 5 SSE 4 7 SSE 5 9 SE 5 8 ESE 6 11 ESE 8 13 ESE 9 15 E 10 17 E 11 20 E 12 21 E 12 20 E 12 21 E 12 22 E 12 22 E 12 22 ENE 12 21 ENE 11 20 ENE 11 19 NE 11 19 NNE 11 21 N 11 21 N 11 21 N 10 20 NNW 10 18
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor)
VG VG VG M M M P P M P M M M M M G G G G VG VG VG VG VG
Humidity
80% 81% 82% 85% 87% 88% 88% 88% 88% 88% 88% 86% 88% 87% 85% 85% 84% 85% 85% 86% 85% 83% 84% 83%
UV index
1 1 1 1 1 2 2 2 2 1 1 1 1 1
Sunrise: 05:53 Sunset: 20:29 Moon phase: Waxing gibbous Air pollution: 3 Pollen: L
Saturday (Saturday 28 April 2018)
00:00 01:00 04:00 07:00 10:00 13:00 16:00 19:00 22:00
Warnings
Overcast Overcast Overcast Cloudy Cloudy Cloudy Cloudy Sunny intervals Cloudy
10% 10% 20% 10% 10% 10% 10% 10% 10%
Temperature (°C)
8 ° 8 ° 7 ° 7 ° 9 ° 10 ° 11 ° 10 ° 9 °
Show detail
Feels like temperature (°C)
5 ° 5 ° 5 ° 5 ° 7 ° 9 ° 10 ° 9 ° 7 °
Wind direction, speed & gust (mph)
NNW 10 18 NNW 9 17 NNW 8 14 NNW 7 13 N 8 15 N 8 15 N 7 15 NW 6 12 NNE 6 10
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
82% 82% 81% 82% 69% 64% 62% 69% 80%
UV index
1 2 4 2 1
Sunrise: 05:51 Sunset: 20:30 Moon phase: Waxing gibbous Air pollution: 3 Pollen: M
Sunday (Sunday 29 April 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 Cloudy Cloudy Cloudy Cloudy Cloudy
<5% <5% <5% 10% 10% 10% 10% 10%
Temperature (°C)
7 ° 7 ° 6 ° 8 ° 10 ° 10 ° 9 ° 8 °
Show detail
Feels like temperature (°C)
5 ° 4 ° 3 ° 5 ° 7 ° 7 ° 6 ° 4 °
Wind direction, speed & gust (mph)
NE 7 13 NE 9 16 NE 10 18 NE 13 25 NE 16 30 NNE 16 29 NNE 16 28 NNE 15 27
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor)
G VG G VG VG VG VG VG
Humidity
83% 86% 88% 73% 63% 63% 61% 65%
UV index
1 3 4 2 1
Sunrise: 05:49 Sunset: 20:32 Moon phase: Full Air pollution: 3 Pollen: M
Monday (Monday 30 April 2018)
01:00 04:00 07:00 10:00 13:00 16:00 19:00 22:00
Warnings
Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Partly cloudy night
10% 10% 10% 10% 10% 10% 10% <5%
Temperature (°C)
6 ° 5 ° 5 ° 7 ° 10 ° 11 ° 10 ° 8 °
Show detail
Feels like temperature (°C)
2 ° 1 ° 1 ° 3 ° 7 ° 8 ° 8 ° 5 °
Wind direction, speed & gust (mph)
NNE 15 27 N 13 24 N 13 24 N 13 25 NNW 14 26 NNW 11 21 NW 9 17 NW 11 19
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor)
VG VG VG VG VG VG VG VG
Humidity
70% 73% 73% 65% 53% 50% 60% 69%
UV index
1 3 4 2 1
Sunrise: 05:47 Sunset: 20:34 Moon phase: Full Air pollution: 3 Pollen: M
Tuesday (Tuesday 1 May 2018)
01:00 04:00 07:00 10:00 13:00 16:00 19:00 22:00
Warnings
Partly cloudy night Clear night Sunny intervals Cloudy Cloudy Cloudy Cloudy Cloudy
<5% <5% <5% 10% 20% 20% 20% 20%
Temperature (°C)
6 ° 5 ° 6 ° 10 ° 11 ° 11 ° 10 ° 8 °
Show detail
Feels like temperature (°C)
3 ° 3 ° 4 ° 7 ° 9 ° 8 ° 8 ° 6 °
Wind direction, speed & gust (mph)
WNW 10 17 W 8 13 WSW 8 13 WSW 11 20 WSW 13 25 WSW 12 23 SW 10 19 S 11 19
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor)
VG VG VG VG VG VG G G
Humidity
80% 87% 87% 68% 61% 65% 73% 83%
UV index
1 3 5 3 1
Sunrise: 05:45 Sunset: 20:35 Moon phase: Full
Wednesday (Wednesday 2 May 2018)
01:00 04:00 07:00 10:00 13:00 16:00 19:00 22:00
Warnings
Cloudy Heavy rain Light rain Cloudy Light shower day Cloudy Cloudy Cloudy
20% 70% 50% 20% 40% 20% 20% 10%
Temperature (°C)
8 ° 8 ° 8 ° 10 ° 11 ° 11 ° 11 ° 9 °
Show detail
Feels like temperature (°C)
5 ° 5 ° 5 ° 7 ° 9 ° 9 ° 9 ° 7 °
Wind direction, speed & gust (mph)
S 11 19 S 11 19 S 11 18 SSW 12 21 SW 13 23 SW 11 21 SW 9 16 SSW 8 13
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor)
G G G VG VG VG VG VG
Humidity
86% 87% 88% 78% 70% 71% 75% 83%
UV index
1 2 3 2 1
Sunrise: 05:44 Sunset: 20:37 Moon phase: Full
< Cardiff last 24 hours Issued at:

1 October - Running the Cardiff Half Marathon? Check the weather forecast.

This year's event takes runners past a number of sites in the city, including:

  • Cardiff City Stadium
  • Cardiff Bay
  • Wales Millennium Centre
  • Roath Park Lake

The wheelchair race starts at 9.50 am and the rest of the runners will start the half marathon from 10.00 am.

For further information about the race, visit the  Cardiff Half Marathon official website.

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

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