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 12 Oct 2026 (local time)

Forecast update in  hr  min

Today's Cable Bay (Porth Trecastell) sea temperature is
15.9°C
1.8° 

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 (13 Oct):

  • Morning surf: Morning surf (13 Oct, local time) - 7.5ft (2.3m), 8s period with SW swell.
  • Afternoon surf: Afternoon surf (13 Oct, local time) - 6ft (1.9m), 6s period with SW swell.
  • Evening surf: Evening surf (13 Oct, local time) - 3.5ft (1.1m), 8s period with SW swell.

The current surf forecast for Cable Bay (Porth Trecastell) at 12AM is: 2.2m 6s primary swell from a South-southwest direction and 0.4m 11s secondary swell from a Southwest direction (forecast issued at 06:00pm October 12). The wind direction is predicted to be cross-onshore.

Time (BST) & DateWave HeightWave Period
Morning (13 Oct)7.5ft (2.3m)8s
Afternoon (13 Oct)6ft (1.9m)6s
Evening (13 Oct)3.5ft (1.1m)8s

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


Short Range Forecast

Light rain (total 4mm), mostly falling on Mon night. Very mild (max 17°C on Mon afternoon, min 13°C on Tue night). Winds decreasing (strong winds from the SSW on Mon night, light winds from the SW by Tue night).

Mon
12
Tuesday
13
Wednesday
14
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
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
Wave
Height (m)
Direction
Period (s)
1.4
SSW
5
1.7
SSW
6
2
SSW
6
2.3
SSW
7
3
SSW
7
2.3
SW
8
2.1
SW
7
2
SW
6
1.8
SW
6
1.6
SW
8
1.1
SW
8
1.3
WSW
8
1
SW
8
1.4
SW
5
2
SSW
6
2.3
SSW
7
2.5
SSW
7
2.5
SSW
7
2.5
SW
8
Wave Graph
Metric surfscale
Energy kJ
87
186
292
476
830
617
444
301
273
289
155
197
132
98
284
479
691
810
816
Wind (km/h)
35
S
40
S
35
S
45
SSW
50
SSW
25
W
35
WSW
35
WSW
35
WSW
30
W
25
W
15
SW
20
SSW
30
SSW
40
S
40
SSW
45
SSW
45
SSW
45
SSW
Wind State
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
cross-on
cross-on
cross-on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
11:03PM4.16m
11:19AM4.04m
11:38PM3.96m
11:52AM3.88m
Low Tide
5:34PM0.11m
5:53AM0.22m
6:09PM0.26m
6:27AM0.48m
6:45PM0.47m
cloud
part cloud
cloud
cloud
cloud
rain showers
clear
clear
clear
part cloud
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
—
—
—
—
—
7:39
—
—
—
—
—
—
—
7:41
—
—
—
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:30
—
—
—
—
—
—
—
6:28
—
—
—
—
—
—
—
6:24
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 mm
—
—
—
—
—
4
—
—
—
—
—
—
—
—
—
—
—
—
—
Temp °C
16
17
16
17
17
14
14
14
15
14
13
13
13
14
14
15
15
15
15
Feels °C
11
11
11
11
9
9
8
7
8
8
8
9
8
8
7
8
7
7
7
  • 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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