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 am 09 Sep 2026 (local time)

Forecast update in  hr  min

Today's Cable Bay (Porth Trecastell) sea temperature is
17.2°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 (09 Sep):

  • Morning surf: Morning surf (09 Sep, local time) - 1.5ft (0.4m), 7s period with SW swell.
  • Afternoon surf: Afternoon surf (09 Sep, local time) - 1.5ft (0.4m), 8s period with SW swell.
  • Evening surf: Evening surf (09 Sep, local time) - 1ft (0.3m), 7s period with SW swell.

The current surf forecast for Cable Bay (Porth Trecastell) at 11AM is: 0.4m 8s primary swell from a Southwest direction and 0.3m 6s secondary swell from a Southwest direction (forecast issued at 06:00am September 09). An open ocean swell of 1.3m 6s is not directed at the surf break. The wind direction is predicted to be cross-shore.

Time (BST) & DateWave HeightWave Period
Morning (09 Sep)1.5ft (0.4m)7s
Afternoon (09 Sep)1.5ft (0.4m)8s
Evening (09 Sep)1ft (0.3m)7s

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


Short Range Forecast

Moderate rain (total 14mm), heaviest on Fri night. Very mild (max 17°C on Thu night, min 13°C on Wed morning). Winds increasing (light winds from the NW on Wed afternoon, strong winds from the SSW by Thu morning).

Wednesday
9
Thursday
10
Friday
11
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
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
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)
0.3
SW
6
0.3
SW
6
0.4
SW
8
0.4
SW
8
0.4
SW
8
0.3
SW
7
0.6
SW
3
0.9
SW
4
0.9
SSW
4
1.1
SSW
5
1.6
SSW
5
2.1
SSW
6
2.2
SSW
7
1.8
SW
7
1.5
SW
7
1.2
SSW
7
0.9
SSW
7
0.7
SW
7
0.6
SW
7
0.6
SSW
7
0.5
SW
7
0.4
SSW
6
0.6
SSW
6
Wave Graph
Metric surfscale
Energy kJ
6
5
15
15
14
9
6
23
35
54
149
320
424
295
222
127
83
47
36
30
21
16
26
Wind (km/h)
35
NW
25
NNW
20
NW
20
NW
10
NW
10
SSW
20
SSW
20
S
30
S
30
S
35
S
40
SSW
35
SSW
30
SW
20
WSW
20
W
20
WNW
20
WNW
20
NW
15
WNW
10
W
10
SSW
20
S
Wind State
cross-off
cross-off
cross
cross
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
cross-on
cross-on
cross
cross
cross
cross
cross-on
cross-on
cross-on
High Tide
8:48AM3.63m
8:58PM4.11m
9:29AM3.86m
9:39PM4.37m
10:06AM4.03m
Low Tide
3:19PM0.38m
3:49AM-0.10m
4:02PM0.12m
4:31AM-0.30m
4:43PM-0.03m
cloud
part cloud
clear
clear
clear
clear
cloud
cloud
cloud
cloud
part cloud
light rain
light rain
rain showers
rain showers
clear
clear
part cloud
part cloud
part cloud
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:39
6:41
6:43
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:49
7:46
7:44
 mm
1
1
1
1
Temp °C
13
14
13
14
14
14
14
14
14
14
16
16
15
16
17
16
14
13
13
13
14
14
14
Feels °C
6
8
9
10
12
11
9
9
8
8
10
9
9
12
15
13
11
10
9
10
11
12
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