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Surf Forecasts:

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

information circle48hr Weather and Surf, issued 11 am Wednesday 14 Jan 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
8.2° 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 3PM is: 1.7m 6s primary swell from a South-southwest direction and 0.1m 14s secondary swell from a Southwest direction (forecast issued at 11:00am January 14). The wind direction is predicted to be cross-onshore.

Time (GMT) & DateWave HeightWave Period
Morning (14 Jan)3.5ft (1.1m)10s
Afternoon (14 Jan)5.5ft (1.7m)6s
Evening (14 Jan)8ft (2.5m)7s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Wednesday
14
Thursday
15
Friday
16
Saturday
17
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
1
1
1
1
0
0
0
0
0
0
0
0
0
1
2
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.1
SW
1.5
SSW
1.7
SSW
2.2
SSW
2.5
SSW
2.2
SSW
1.9
SW
1.7
SW
1.4
SW
1.2
SW
1
SW
0.9
SW
0.7
SW
0.8
SSW
1.1
SSW
1.5
SSW
1.5
SSW
1.6
SSW
1.6
S
1.2
SSW
1.3
S
1.4
S
1.4
SSW
1.3
SSW
Period(s) (?)1056677788888888566666677
Wave
Graph
(?)Metric surfscale
Energy kJ (?)216103194393597518396320223164122956984149112130148171110140158168158
Wind
(km/h)
25
SSW
35
S
35
S
40
S
45
S
30
SSW
25
SW
25
SW
20
SW
15
SW
5
WSW
5
NW
10
SW
20
SSW
20
S
30
SSE
30
SSE
35
SSE
30
SSE
20
SE
20
SE
20
SE
15
ESE
15
ESE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
oncross-
on		cross-
on		cross-
on		cross-
on		cross-
on		ononononglassglassoncross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		crosscrosscrosscross-
off		cross-
off
High Tide
/ height (m)
6:12AM
3.02
6:38PM
3.03
7:07AM
3.17
7:32PM
3.16
7:54AM
3.36
8:17PM
3.31
Low Tide
/ height (m)
1:02PM
1.32
1:26AM
1.21
1:54PM
1.10
2:11AM
1.03
2:37PM
0.87
2:50AM
0.82
Wednesday
14
Thursday
15
Friday
16
Saturday
17
Sunrise8:26-------8:25-------8:23-------
Sunset--4:28-------4:29-------4:30-----
cloud
cloud
cloud
light rain
light rain
rain showers
rain showers
rain showers
part cloud
cloud
cloud
cloud
clear
part cloud
cloud
light rain
light rain
cloud
rain showers
cloud
cloud
cloud
part cloud
cloud
Rain (mm)
---13211-------21-1-----
Temp. °C777769888887777778877766
Feels °C (?)0-2-2-3-42322465421000121112
  • 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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FREE! Surf-Forecast.com widget for your website

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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