Cable Bay (Porth Trecastell) surfForecast / Wales – Anglesy / UK

information circle48hr Weather and Surf, issued 12 pm Sunday 24 May 2026 BST
Forecast update in hr  min  s Forecast update imminent
Cable Bay (Porth Trecastell) surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Cable Bay (Porth Trecastell) sea temperature is
12.1° C
(Which is 1.0°C warmer than normal for this time of year)

How big are the waves at Cable Bay (Porth Trecastell) today?

The current surf forecast for Cable Bay (Porth Trecastell) at 7PM is: 0.3m 8s primary swell from a Southwest direction and 0.1m 13s secondary swell from a Southwest direction, 0.4m 3s secondary swell from a Southwest direction (forecast issued at 12:00pm May 24). The wind direction is predicted to be onshore.

Time (BST) & DateWave HeightWave Period
Morning (24 May)1ft (0.3m)8s
Afternoon (24 May)1.5ft (0.5m)3s
Evening (24 May)0.5ft (0.2m)8s

Table - waves today at Cable Bay (Porth Trecastell). (Swell directed towards the surf break)


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Warm (max 23°C on Mon afternoon, min 13°C on Sun morning). Wind will be generally light.

Sun
24
Monday
25
Tuesday
26
Wed
27
10 AM
1 PM
4 PM
7 PM
10 PM
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
1 AM
4 AM
7 AM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
0.3
SW
8
0.6
SSW
3
0.1
SW
14
0.3
SW
8
0.2
SSW
8
0.2
SSW
7
0.2
SSW
7
0.2
SSW
7
0.1
SW
13
0.1
SW
13
0.1
SW
13
0.1
SW
13
0.1
SW
12
0.1
SW
12
0.1
SW
12
0.1
SW
12
0.1
SW
12
0.1
S
12
0.1
S
12
0.1
S
12
0.1
S
12
0.1
S
12
0.1
S
13
0.4
NE
5
Wave Graph
Metric surfscale
Energy kJ
10
8
7
9
7
7
7
7
7
7
6
6
6
6
6
6
6
3
3
3
3
3
3
0
Wind (km/h)
15
SSW
15
SSW
15
SSW
10
SSW
10
S
5
SSE
5
SE
5
SE
5
NW
5
WNW
10
NNW
10
ENE
10
ENE
10
ENE
10
NE
15
NE
15
NE
20
NNE
20
NNE
20
NNE
15
NE
15
ENE
10
ENE
10
ENE
cross-on
on
on
on
cross-on
glassy
glassy
glassy
glassy
cross
cross-off
off
off
off
off
off
off
off
off
off
off
off
cross-off
cross-off
High Tide
5:24PM3.08m
5:30AM3.48m
6:26PM3.16m
6:31AM3.48m
7:15PM3.28m
Low Tide
11:14AM0.71m
11:35PM1.14m
12:22PM0.73m
00:44AM1.09m
1:23PM0.70m
1:44AM0.97m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:05
5:05
5:03
5:03
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:22
9:24
9:25
9:28
Temp °C
13
15
16
17
18
19
19
19
19
22
22
23
23
23
22
21
20
21
21
21
22
22
21
18
10
11
12
13
14
16
16
17
18
21
21
23
22
23
21
19
17
18
18
18
22
22
21
18
Swell 1
Height (m)
Direction
Period (s)
0.3
SW
8
0.1
SW
14
0.1
SW
8
0.3
SW
8
0.2
SSW
8
0.3
SW
4
0.2
SSW
7
0.2
SSW
7
0.1
SW
7
0.1
SW
7
0.1
SW
7
0.1
SW
7
0.1
SW
7
0.1
SW
7
0.1
SW
7
0.1
SW
7
0.1
SW
7
0.1
SW
7
0.1
SW
7
0.1
S
7
0.1
S
12
0.7
N
5
0.5
N
5
0.4
NE
5
Energy kJ
10
8
3
9
6
2
5
5
2
2
2
2
2
2
2
2
2
2
2
1
3
20
11
10
Swell 2
Height (m)
Direction
Period (s)
0.1
SW
14
0.1
SW
14
0.1
SW
14
0.1
SW
13
0.1
SW
13
0.2
SSW
7
0.1
SW
13
0.1
SW
13
0.1
SW
13
0.1
SW
12
0.1
SW
12
0.1
SW
12
0.1
SW
12
0.1
SW
12
0.1
S
12
0.1
S
12
0.1
S
12
0.1
S
7
0.1
S
12
0.1
S
13
0.3
NNW
4
Energy kJ
8
8
7
7
7
5
7
6
6
6
6
6
6
6
3
3
3
1
3
3
4
Swell 3
Height (m)
Direction
Period (s)
0.1
SW
13
0.1
SW
13
0.1
SW
13
0.1
SW
13
0.1
SW
8
0.1
W
8
0.1
W
12
Energy kJ
7
7
7
7
2
1
3
Wind waves
Height (m)
Direction
Period (s)
0.4
SSW
4
0.6
SSW
3
0.4
SSW
3
0.4
SW
3
0.3
SW
3
0.3
N
3
0.4
N
3
0.6
N
4
0.7
N
4
0.7
N
4
0.8
N
4
0.2
E
3
0.5
NE
5
Energy kJ
5
8
4
3
2
1
4
9
14
15
23
1
11
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Distance (km)
157
44
172
157
157
157
157
157
158
158
158
158
158
172
176
158
178
176
172
172
158
172
158
172
Best forecast wave conditions in Anglesy
Rating
(10 max)
Best forecast wave conditions in United Kingdom
Rating
(10 max)
1
1
2
2
2
2
2
2
2
2
3
2
2
2
2
2
3
2
2
2
1
3
2
2
Header Global
Rating
(10 max)
5
5
5
5
5
5
4
5
5
4
4
4
4
4
5
6
9
9
9
6
7
7
7
9
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

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