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

information circle48hr Weather and Surf, issued 11 pm Wednesday 11 Feb 2026 GMT
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
7.9° C
(Which is 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 4AM is: 1.2m 13s primary swell from a Southwest direction and 0.4m 18s secondary swell from a Southwest direction (forecast issued at 11:00pm February 11). The wind direction is predicted to be offshore and the swell rating is 3.

Time (GMT) & DateWave HeightWave Period
Morning (12 Feb)2ft (0.6m)17s
Afternoon (12 Feb)3ft (0.9m)16s
Evening (12 Feb)5ft (1.5m)15s

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

Updates in  hr  min  s Forecast update imminent
Thursday
12
Friday
13
Saturday
14
9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM6PM
Rating
(10 max)
2
2
3
2
2
1
3
4
3
3
2
2
1
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
1.6
SW
1.4
SW
1.2
SW
0.9
SSW
0.6
SW
0.7
SW
0.9
SW
1.6
SW
1.5
SW
1.4
SW
0.8
SW
0.8
SW
0.7
SW
0.6
SW
0.8
SW
0.6
SW
0.5
SW
0.4
SW
0.4
SW
0.3
SW
0.2
SSW
0.2
SSW
0.2
WSW
0.3
SW
Period(s) (?)141313917171615151413131312910101010101091314
Wave
Graph
(?)Metric surfscale
Energy kJ (?)9617115091511832934321105924799253205163831037345332417981729
Wind
(km/h)
10
SE
10
SSE
15
NE
20
NE
25
ENE
15
ENE
0
WNW
5
ENE
10
E
15
E
10
ESE
20
ENE
35
ENE
40
NE
35
NE
30
NE
20
NNE
20
NNE
15
N
10
NNE
5
N
5
WSW
10
SSW
20
S
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscrossoffoffoffcross-
off
glasscross-
off
cross-
off
cross-
off
cross-
off
offoffoffoffoffoffcross-
off
cross-
off
cross-
off
cross-
off
glassoncross-
on
High Tide
/ height (m)
5:40AM
2.80
6:21PM
2.81
6:52AM
3.00
7:22PM
3.00
7:43AM
3.27
Low Tide
/ height (m)
11:40PM
1.63
12:31PM
1.52
1:00AM
1.44
1:34PM
1.26
1:50AM
1.17
2:17PM
0.95
Thursday
12
Friday
13
Saturday
14
Sunrise----7:43-------7:41-------7:39---
Sunset------5:22-------5:23-------5:25-
light rain
light rain
light rain
part cloud
cloud
light rain
cloud
part cloud
part cloud
rain showers
rain showers
rain showers
light rain
light rain
light rain
cloud
clear
clear
clear
clear
clear
cloud
cloud
cloud
Rain (mm)
111--1---111111---------
Temp. °C887766776665434444444555
Feels °C (?)553302653230-4-6-5-4-2-2-2-1020-2
  • 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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