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Surf Forecasts:

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

information circle48hr Weather and Surf, issued 11 am Wednesday 11 Mar 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
8.5° C
 (Which is 1.1°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 3PM is: 1.3m 6s primary swell from a Southwest direction and 0.7m 5s secondary swell from a Northwest direction, 0.3m 16s secondary swell from a Southwest direction (forecast issued at 11:00am March 11). The wind direction is predicted to be onshore.

Time (GMT) & DateWave HeightWave Period
Morning (11 Mar)7ft (2.2m)6s
Afternoon (11 Mar)4.5ft (1.3m)6s
Evening (11 Mar)5.5ft (1.7m)6s

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

Updates in  hr  min  s Forecast update imminent 
16 DaysHourly
Print Table
Wednesday
11
Thursday
12
Friday
13
Saturday
14
9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 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
See all maps
Wave Height (m) & direction (?)
2.2
WSW
1.9
WSW
1.3
SW
1.5
SW
1.7
SW
2.5
SW
3
SW
3.5
SW
4.5
SW
5
SW
4.5
SW
3.5
SW
3
SW
3
SW
3
SW
3
SW
3
SW
2.5
SW
2.1
SW
1.5
SW
1.2
SW
1
SW
1.5
NW
1.6
NW
Period(s) (?)666567889101010977888899966
Wave
Graph
(?)Metric surfscale
Energy kJ (?)381263145122185567120619152973441137612755161086998111611286822625342226145133154
Wind
(km/h)
35
W
30
W
25
SW
35
SW
40
SW
50
SSW
55
SSW
55
SSW
65
SSW
75
SSW
55
SW
45
SW
40
W
40
WSW
50
WSW
45
WSW
50
WSW
30
WSW
25
WSW
30
WNW
25
NW
30
NW
25
NW
20
NW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		cross-
on		onononononcross-
on		cross-
on		onononcross-
on		cross-
on		onononcross-
on		cross-
on		cross-
on		crosscrosscrosscross
High Tide
/ height (m)
2:22PM
2.78
3:02AM
2.73
4:15PM
2.61
5:06AM
2.73
6:01PM
2.70
Low Tide
/ height (m)
8:28AM
1.43
8:59PM
1.63
9:51AM
1.64
10:39PM
1.73
11:47AM
1.60
12:18AM
1.57
Wednesday
11
Thursday
12
Friday
13
Saturday
14
Sunrise6:43-------6:41-------6:37-------
Sunset---6:13-------6:15-------6:16----
clear
clear
part cloud
clear
part cloud
cloud
part cloud
cloud
cloud
light rain
light rain
light rain
light rain
light rain
light rain
rain showers
cloud
cloud
part cloud
rain showers
rain showers
rain showers
rain showers
part cloud
Rain (mm)
---------1122111---1212-
Temp. °C8899999910111110554456877655
Feels °C (?)01211-1-3-3-3-300-4-5-8-7-7-2100-1-2-1
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Cable Bay (Porth Trecastell) surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.

View detailed surf forecast for Cable Bay (Porth Trecastell) at:
surf-forecast.com

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