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

information circle48hr Weather and Surf, issued 6 pm Friday 08 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
11.1° C
(Which is 1.0°C warmer than normal for this time of year)
Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Some drizzle, heaviest during Fri afternoon. Very mild (max 13°C on Fri afternoon, min 7°C on Sat night). Mainly fresh winds.

Fri
8
Saturday
9
Sunday
10
Mon
11
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
10 AM
1 PM
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
NNE
2
0.5
N
3
0.7
N
4
1.1
N
5
1.3
N
6
1.3
N
6
1.4
N
6
1.5
N
6
1.4
N
6
1.1
NNE
5
1.1
NNE
5
1
NNE
5
0.8
NE
4
0.7
NE
4
0.6
NNE
4
0.6
N
4
0.5
N
3
0.7
N
4
0.7
N
5
0.1
S
10
0.1
SW
9
0.1
SW
9
0.1
SW
9
Wave Graph
Metric surfscale
Energy kJ
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
3
3
3
Wind (km/h)
10
NNE
15
NE
20
NE
15
NNE
20
NNE
20
NNE
25
NNE
30
N
25
NNE
30
NE
30
NE
30
NE
25
NE
25
NE
25
NE
25
NNE
20
N
20
N
15
N
10
NNW
20
NNW
20
NNW
25
NNW
20
N
off
off
off
off
cross-off
cross-off
cross-off
cross-off
off
off
off
off
off
off
off
off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
2:18PM2.83m
2:44AM3.07m
3:35PM2.70m
4:03AM3.02m
5:07PM2.74m
5:18AM3.10m
Low Tide
9:03PM1.37m
9:50AM1.29m
10:04PM1.47m
10:56AM1.29m
11:13PM1.47m
12:04PM1.15m
light rain
cloud
cloud
part cloud
part cloud
part cloud
cloud
cloud
cloud
cloud
cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
cloud
part cloud
cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:30
5:28
5:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:58
8:59
9:00
9:02
1
Temp °C
13
12
11
10
9
9
9
10
10
9
8
7
7
7
8
9
9
9
9
9
9
9
10
10
10
8
7
6
4
4
3
4
4
2
1
0
1
1
2
2
3
4
5
6
4
4
4
5
Swell 1
Height (m)
Direction
Period (s)
0.4
NNW
6
0.3
NNW
5
0.2
NNW
5
0.4
NNW
5
0.3
NNW
5
0.1
S
10
0.1
SW
9
0.1
SW
9
0.1
SW
9
Energy kJ
13
6
3
9
5
2
3
3
3
Swell 2
Height (m)
Direction
Period (s)
Energy kJ
Swell 3
Height (m)
Direction
Period (s)
Energy kJ
Wind waves
Height (m)
Direction
Period (s)
0.3
NNE
2
0.5
N
3
0.7
N
4
1.1
N
5
1.3
N
6
1.3
N
6
1.4
N
6
1.5
N
6
1.4
N
6
1.1
NNE
5
1.1
NNE
5
1
NNE
5
0.8
NE
4
0.7
NE
4
0.6
NNE
4
0.6
N
4
0.5
N
3
0.7
N
4
0.7
N
5
0.9
NNW
5
1.1
NNW
5
1.3
NNW
6
0.9
NNW
6
Energy kJ
1
5
19
64
103
110
123
139
117
69
57
46
26
16
11
9
6
17
22
37
64
109
53
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
Distance (km)
244
244
316
244
244
244
244
263
260
258
258
331
242
258
308
283
306
316
277
277
242
242
246
244
Best forecast wave conditions in Anglesy
Rating
(10 max)
Best forecast wave conditions in United Kingdom
Rating
(10 max)
1
1
1
1
1
1
4
4
1
1
1
1
1
4
1
1
3
3
1
1
1
1
1
1
Header Global
Rating
(10 max)
7
6
6
7
6
5
5
5
5
5
5
5
4
4
4
4
4
4
9
7
9
5
4
5
  • 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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