Cable Bay (Porth Trecastell) Surf Break

Lat Long: 53.22° N 4.51° W

Cable Bay (Porth Trecastell) 48 hour detailed Surf Forecast

Issued: 5 pm 11 Nov 2026 (local time)

Forecast update in  hr  min

Today's Cable Bay (Porth Trecastell) sea temperature is
12.8°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 (11 Nov):

  • Afternoon surf: Afternoon surf (11 Nov, local time) - 3ft (0.9m), 12s period with SW swell.
  • Evening surf: Evening surf (11 Nov, local time) - 2.5ft (0.7m), 11s period with SW swell.

The current surf forecast for Cable Bay (Porth Trecastell) at 11PM is: 0.6m 11s primary swell from a Southwest direction (forecast issued at 05:00pm November 11). An open ocean swell of 0.9m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (GMT) & DateWave HeightWave Period
Morning (11 Nov)--
Afternoon (11 Nov)3ft (0.9m)12s
Evening (11 Nov)2.5ft (0.7m)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 Wed afternoon, min 7°C on Thu morning). Winds increasing (calm on Fri morning, fresh winds from the S by Sat morning).

Wed
11
Thursday
12
Friday
13
Sat
14
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
9 AM
12 PM
3 PM
6 PM
9 PM
12 AM
3 AM
6 AM
Rating
(10 max)
2
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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)
0.9
SW
12
0.8
SW
12
0.7
SW
11
0.6
SW
11
0.6
SW
11
0.6
SSW
11
0.6
SSW
10
0.5
SW
10
0.5
SW
10
0.5
SW
10
0.5
SW
10
0.4
SSW
10
0.4
SW
10
0.4
SW
9
0.4
SW
9
0.4
SW
9
0.4
SW
9
0.4
SW
9
0.3
SW
9
0.3
SW
8
0.2
SSW
12
0.3
SW
11
Wave Graph
Metric surfscale
Energy kJ
244
169
130
96
94
76
71
49
49
48
48
38
24
23
21
21
21
20
12
11
14
20
Wind (km/h)
20
NE
15
NNE
10
NNE
25
N
25
NNE
30
NNE
30
NNE
25
NNE
25
NNE
20
NNE
15
NNE
20
N
15
NNE
10
NNE
5
NNE
5
WNW
10
WNW
10
W
10
SW
15
SW
20
SW
30
SSW
Wind State
off
off
cross-off
cross-off
cross-off
cross-off
off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
off
glassy
glassy
cross-on
cross-on
on
on
on
cross-on
High Tide
10:17PM3.75m
10:30AM3.85m
10:54PM3.57m
11:07AM3.70m
11:32PM3.34m
Low Tide
4:50PM0.36m
5:04AM0.60m
5:26PM0.51m
5:39AM0.79m
6:05PM0.70m
clear
clear
part cloud
clear
clear
cloud
clear
clear
clear
clear
clear
clear
clear
part cloud
cloud
cloud
part cloud
cloud
part cloud
part cloud
cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
—
—
—
—
—
7:35
—
—
—
—
—
—
—
7:37
—
—
—
—
—
—
—
7:39
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
4:29
—
—
—
—
—
—
—
4:27
—
—
—
—
—
—
—
4:25
—
—
—
—
4:23
 mm
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Temp °C
9
8
8
8
8
8
7
8
8
8
8
8
7
7
8
8
9
8
8
9
9
9
Feels °C
4
4
4
2
1
1
-1
1
1
2
3
2
2
3
5
6
6
4
4
4
4
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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