Cable Bay (Porth Trecastell) Surf Break

Lat Long: 53.22° N 4.51° W

Cable Bay (Porth Trecastell) 48 hour detailed Surf Forecast

Issued: 6 pm 14 Oct 2026 (local time)

Forecast update in  hr  min

Today's Cable Bay (Porth Trecastell) sea temperature is
15.6°C
1.7° 

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 (14 Oct):

  • Afternoon surf: Afternoon surf (14 Oct, local time) - 8ft (2.5m), 7s period with SSW swell.
  • Evening surf: Evening surf (14 Oct, local time) - 10ft (3.0m), 8s period with SW swell.

The current surf forecast for Cable Bay (Porth Trecastell) at 9PM is: 3.0m 8s primary swell from a Southwest direction (forecast issued at 06:00pm October 14). The wind direction is predicted to be onshore.

Time (BST) & DateWave HeightWave Period
Morning (14 Oct)--
Afternoon (14 Oct)8ft (2.5m)7s
Evening (14 Oct)10ft (3.0m)8s

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


Short Range Forecast

Light rain (total 5mm), mostly falling on Thu morning. Very mild (max 15°C on Wed afternoon, min 11°C on Thu night). Winds decreasing (strong winds from the SSW on Wed night, light winds from the NW by Thu night).

Wed
14
Thursday
15
Friday
16
4 PM
7 PM
10 PM
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
2
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
Wave
Height (m)
Direction
Period (s)
2.5
SSW
7
3
SW
8
3
SW
8
3
SW
8
3
SW
8
3
SW
8
3
SW
8
2.3
SW
8
1.8
SW
8
1.4
SW
8
1.1
SW
8
0.9
SW
7
0.7
SW
7
0.6
SSW
7
1.2
WNW
5
1.2
WNW
5
1.1
NW
5
0.4
SW
7
0.4
SW
6
Wave Graph
Metric surfscale
Energy kJ
709
918
1063
1161
1118
1132
1059
589
350
223
143
77
53
34
56
64
64
11
11
Wind (km/h)
45
SSW
50
SSW
50
SSW
50
SSW
50
SSW
50
SSW
45
SSW
40
SSW
20
NW
10
NNW
10
NW
20
NW
25
WNW
25
NW
30
WNW
30
NW
25
NW
25
NNW
25
NNW
Wind State
cross-on
on
cross-on
cross-on
cross-on
on
on
on
cross
cross-off
cross
cross
cross
cross
cross
cross
cross
cross-off
cross-off
High Tide
00:14AM3.70m
12:27PM3.66m
00:52AM3.39m
1:06PM3.39m
Low Tide
6:45PM0.47m
7:01AM0.77m
7:22PM0.74m
7:37AM1.06m
8:04PM1.03m
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
light rain
light rain
cloud
cloud
clear
part cloud
rain showers
clear
clear
clear
rain showers
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
—
—
—
—
—
7:43
—
—
—
—
—
—
—
7:45
—
—
—
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:24
—
—
—
—
—
—
—
6:22
—
—
—
—
—
—
—
6:21
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 mm
—
—
—
—
—
—
—
2
1
—
—
—
—
1
—
—
—
1
—
Temp °C
15
15
15
15
15
15
15
15
12
12
13
12
11
11
11
11
12
12
12
Feels °C
7
7
7
7
7
6
7
8
9
9
11
8
6
5
5
5
6
6
6
  • 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 

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