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

information circle48hr Weather and Surf, issued 5 am 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 9AM is: 0.8m 9s primary swell from a South-southwest direction and 0.4m 13s secondary swell from a Southwest direction (forecast issued at 05:00am February 11). The wind direction is predicted to be cross-onshore.

Time (GMT) & DateWave HeightWave Period
Morning (11 Feb)2.5ft (0.8m)9s
Afternoon (11 Feb)6ft (1.8m)14s
Evening (11 Feb)5ft (1.6m)14s

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

Updates in  hr  min  s Forecast update imminent
Wednesday
11
Thursday
12
Friday
13
Sat
14
3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM
Rating
(10 max)
0
0
1
0
0
2
1
1
3
2
2
4
3
4
3
1
1
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
0.8
SSW
0.8
SSW
0.8
SSW
1.7
SW
1.8
SW
2.1
SW
1.6
SW
1.5
SW
1.2
SW
0.9
SSW
0.6
SW
1.7
SW
1
SW
1.8
SW
1.6
SW
1
SW
0.9
SW
0.8
SW
0.7
SW
1
SW
0.8
SW
0.6
SW
0.5
SW
0.4
SW
Period(s) (?)9991414131413139171716151514141313111091010
Wave
Graph
(?)Metric surfscale
Energy kJ (?)9999110119612361591961792509151186168249815721123393308246163250110714424
Wind
(km/h)
10
S
10
WSW
10
S
25
SW
30
SSW
20
S
15
SSE
15
SSE
10
SSW
5
N
20
NE
15
NE
10
E
15
ENE
20
ENE
25
ENE
30
ENE
35
ENE
40
NE
40
NE
35
NE
30
NNE
20
NNE
20
N
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
cross-
on
cross-
on
ononcross-
on
cross-
on
cross-
on
oncross-
off
offoffcross-
off
cross-
off
cross-
off
cross-
off
offoffoffoffoffoffcross-
off
cross-
off
High Tide
/ height (m)
4:55PM
2.74
5:40AM
2.80
6:21PM
2.81
6:52AM
3.00
7:22PM
3.00
Low Tide
/ height (m)
10:49AM
1.63
11:40PM
1.63
12:31PM
1.52
1:00AM
1.44
1:34PM
1.26
Wednesday
11
Thursday
12
Friday
13
Sat
14
Sunrise--7:45-------7:43-------7:41-----
Sunset----5:20-------5:22-------5:23---
cloud
light rain
cloud
light rain
cloud
light rain
light rain
cloud
cloud
rain showers
cloud
cloud
cloud
part cloud
cloud
cloud
cloud
light rain
light rain
cloud
part cloud
part cloud
cloud
clear
Rain (mm)
-1-1-11--1-------11-----
Temp. °C999998889876665553344443
Feels °C (?)776433447632320-1-2-6-6-6-5-4-2-3
  • 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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