Cable Bay (Porth Trecastell) Surf Break

Lat Long: 53.22° N 4.51° W

Cable Bay (Porth Trecastell) 48 hour detailed Surf Forecast

Issued: 11 pm 09 Nov 2026 (local time)

Forecast update in  hr  min

Today's Cable Bay (Porth Trecastell) sea temperature is
13.0°C
0.7° 

Cable Bay (Porth Trecastell) surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at Cable Bay (Porth Trecastell) today (10 Nov):

  • Morning surf: Morning surf (10 Nov, local time) - 2.5ft (0.7m), 11s period with SW swell.
  • Afternoon surf: Afternoon surf (10 Nov, local time) - 2.5ft (0.8m), 12s period with SW swell.
  • Evening surf: Evening surf (10 Nov, local time) - 2.5ft (0.8m), 11s period with SW swell.

The current surf forecast for Cable Bay (Porth Trecastell) at 7AM is: 0.7m 11s primary swell from a Southwest direction and 0.2m 5s secondary swell from a South-southeast direction (forecast issued at 11:00pm November 09). An open ocean swell of 0.3m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (GMT) & DateWave HeightWave Period
Morning (10 Nov)2.5ft (0.7m)11s
Afternoon (10 Nov)2.5ft (0.8m)12s
Evening (10 Nov)2.5ft (0.8m)11s

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


Short Range Forecast

Mostly dry. Mild temperatures (max 9°C on Tue morning, min 6°C on Mon night). Wind will be generally light.

Tuesday
10
Wednesday
11
Thu
12
9 PM
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
12 AM
3 AM
6 AM
Rating
(10 max)
0
1
1
1
1
1
1
1
1
2
2
2
2
2
1
1
1
1
1
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.5
SW
12
0.6
SW
11
0.7
SW
11
0.6
SW
11
0.7
SW
11
0.8
SW
11
0.8
SW
12
0.8
SW
11
0.8
SW
11
1
SW
13
0.9
SW
13
0.9
SW
12
0.9
SW
12
0.9
SW
12
0.8
SW
12
0.8
SW
12
0.7
SW
11
0.6
SW
11
0.6
SW
11
0.6
SSW
11
Wave Graph
Metric surfscale
Energy kJ
69
104
126
101
130
155
161
150
147
336
277
260
248
248
175
169
130
96
94
76
Wind (km/h)
20
E
10
E
10
E
10
E
10
E
5
E
10
NE
20
ENE
20
ENE
20
ENE
20
ENE
25
ENE
25
ENE
20
ENE
20
NE
15
NE
15
NE
15
NNE
20
NNE
25
NNE
Wind State
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
off
cross-off
cross-off
off
off
off
off
off
off
off
off
cross-off
off
off
High Tide
9:05PM3.96m
9:21AM4.00m
9:41PM3.88m
9:55AM3.96m
10:17PM3.75m
Low Tide
3:55AM0.31m
4:15PM0.27m
4:29AM0.44m
4:50PM0.36m
5:04AM0.60m
cloud
part cloud
part cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
part cloud
cloud
cloud
cloud
clear
clear
clear
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
—
—
—
7:31
—
—
—
—
—
—
—
7:33
—
—
—
—
—
—
—
7:35
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
—
—
—
—
—
4:30
—
—
—
—
—
—
—
4:29
—
—
—
—
4:27
 mm
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Temp °C
7
7
7
6
6
9
9
9
8
8
8
8
8
8
9
7
7
7
7
7
Feels °C
2
3
4
2
3
6
6
4
3
3
3
3
2
2
4
3
3
3
2
0
  • 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
How to use the Wavefinder 

Never miss your swells again.

Built by surfers, trusted by millions for over 20 years. The Wavefinder in our app makes it even easier to find where the best waves are breaking. Follow the yellow stars along your coast and get there first.

QR code to download the Surf‑Forecast app
app storeplay store

Scan the QR code to open the Surf‑Forecast app

Surf‑Forecast mobile app preview

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.


Nearest locationNearest