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 30 Sep 2026 (local time)

Forecast update in  hr  min

Today's Cable Bay (Porth Trecastell) sea temperature is
16.5°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 (01 Oct):

  • Morning surf: Morning surf (01 Oct, local time) - 4.5ft (1.4m), 10s period with SW swell.
  • Afternoon surf: Afternoon surf (01 Oct, local time) - 4.5ft (1.4m), 10s period with SW swell.
  • Evening surf: Evening surf (01 Oct, local time) - 5ft (1.6m), 6s period with SSW swell.

The current surf forecast for Cable Bay (Porth Trecastell) at 12AM is: 1.9m 11s primary swell from a Southwest direction and 1.7m 11s secondary swell from a Southwest direction (forecast issued at 06:00pm September 30). The wind direction is predicted to be onshore.

Time (BST) & DateWave HeightWave Period
Morning (01 Oct)4.5ft (1.4m)10s
Afternoon (01 Oct)4.5ft (1.4m)10s
Evening (01 Oct)5ft (1.6m)6s

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


Short Range Forecast

Moderate rain (total 15mm), heaviest on Fri night. Very mild (max 16°C on Wed afternoon, min 12°C on Fri night). Winds decreasing (strong winds from the S on Fri morning, light winds from the WNW by Sat morning).

Wed
30
Thursday
1
Friday
2
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
1
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)
2.5
SSW
7
2.3
SSW
8
1.9
SW
11
1.7
SW
11
1.7
SW
11
1.4
SW
10
1.4
SW
10
1.4
SW
10
1.4
SW
10
1.7
SSW
6
1.7
SSW
6
1.9
SSW
6
2.3
SSW
7
2.5
SSW
7
2.5
SSW
7
2.5
SSW
7
3
SSW
8
2.5
SSW
8
2.3
SW
7
Wave Graph
Metric surfscale
Energy kJ
723
616
831
652
639
428
420
412
408
170
191
270
476
638
703
752
874
750
558
Wind (km/h)
40
S
30
SSW
25
SSW
20
SW
25
SW
25
SW
25
WSW
30
SW
30
SSW
30
SSW
35
SSW
35
S
40
S
40
S
45
S
45
S
45
SSW
40
SSW
40
SSW
Wind State
cross-on
cross-on
cross-on
on
on
on
on
on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
00:19AM4.07m
12:39PM3.87m
1:06AM3.75m
1:27PM3.61m
Low Tide
6:57PM0.27m
7:22AM0.44m
7:45PM0.50m
8:12AM0.77m
8:42PM0.76m
clear
rain showers
rain showers
thunderstorm
part cloud
cloud
clear
clear
part cloud
part cloud
part cloud
cloud
light rain
light rain
light rain
part cloud
cloud
part cloud
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
—
—
—
—
—
7:18
—
—
—
—
—
—
—
7:20
—
—
—
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:58
—
—
—
—
—
—
—
6:55
—
—
—
—
—
—
—
6:52
—
—
 mm
—
1
1
1
—
—
—
—
—
—
—
—
1
2
1
—
—
—
2
Temp °C
16
15
15
15
14
14
14
14
15
15
15
14
15
15
15
16
16
16
16
Feels °C
9
10
11
12
9
9
9
8
9
9
9
7
8
8
7
8
9
10
10
  • 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 

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