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 am 10 Nov 2026 (local time)

Forecast update in  hr  min

Today's Cable Bay (Porth Trecastell) sea temperature is
12.9°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) - 2ft (0.6m), 14s period with SW swell.

The current surf forecast for Cable Bay (Porth Trecastell) at 8PM is: 0.8m 11s primary swell from a Southwest direction and 0.6m 14s secondary swell from a Southwest direction (forecast issued at 11:00am November 10). An open ocean swell of 0.6m 5s 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)2ft (0.6m)14s

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 afternoon, min 7°C on Tue morning). Wind will be generally light.

Tue
10
Wednesday
11
Thursday
12
Fri
13
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
9 AM
12 PM
3 PM
6 PM
9 PM
12 AM
3 AM
6 AM
Rating
(10 max)
1
1
1
1
1
2
2
2
2
2
2
1
1
1
1
0
0
0
1
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.7
SW
11
0.8
SW
11
0.8
SW
12
0.8
SW
11
0.6
SW
14
1
SW
13
0.9
SW
13
0.9
SW
12
0.9
SW
12
0.9
SW
12
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
0.6
SSW
10
0.6
SSW
10
0.5
SW
10
0.5
SW
10
0.5
SW
10
0.4
SSW
10
0.4
SW
9
Wave Graph
Metric surfscale
Energy kJ
130
155
161
153
128
336
277
260
248
248
212
169
130
96
94
76
71
68
67
48
48
47
37
22
Wind (km/h)
10
E
5
ESE
10
NE
20
ENE
20
ENE
20
ENE
25
ENE
25
ENE
25
ENE
20
ENE
20
NE
15
NE
15
NNE
15
NNE
20
NNE
25
NE
30
NNE
25
NNE
25
NNE
20
NNE
15
NNE
10
NNE
15
NNE
10
NNE
Wind State
cross-off
glassy
off
cross-off
cross-off
off
off
off
off
off
off
off
off
cross-off
off
off
off
off
off
off
off
cross-off
cross-off
cross-off
High Tide
9:21AM4.00m
9:41PM3.88m
9:55AM3.96m
10:17PM3.75m
10:30AM3.85m
10:54PM3.57m
Low Tide
4:15PM0.27m
4:29AM0.44m
4:50PM0.36m
5:04AM0.60m
5:26PM0.51m
5:39AM0.79m
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
part cloud
clear
clear
clear
clear
clear
cloud
clear
clear
clear
clear
clear
clear
clear
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:31
—
—
—
—
—
—
7:33
—
—
—
—
—
—
—
7:35
—
—
—
—
—
—
—
7:37
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
—
4:30
—
—
—
—
—
—
—
4:29
—
—
—
—
—
—
—
4:27
—
—
—
—
4:25
 mm
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Temp °C
7
8
9
8
8
8
8
8
8
9
9
7
7
8
8
8
7
8
8
7
7
7
8
7
Feels °C
4
6
6
3
3
3
3
3
2
4
4
2
3
4
2
1
-1
1
1
1
2
2
3
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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