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 01 Sep 2026 (local time)

Forecast update in  hr  min

Today's Cable Bay (Porth Trecastell) sea temperature is
17.0°C
1.4° 

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 Sep):

  • Afternoon surf: Afternoon surf (01 Sep, local time) - 4ft (1.2m), 5s period with SW swell.
  • Evening surf: Evening surf (01 Sep, local time) - 4.5ft (1.4m), 6s period with SW swell.

The current surf forecast for Cable Bay (Porth Trecastell) at 11PM is: 1.2m 6s primary swell from a Southwest direction (forecast issued at 06:00pm September 01). The wind direction is predicted to be onshore.

Time (BST) & DateWave HeightWave Period
Morning (01 Sep)--
Afternoon (01 Sep)4ft (1.2m)5s
Evening (01 Sep)4.5ft (1.4m)6s

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


Short Range Forecast

Heavy rain (total 25mm), heaviest during Wed morning. Very mild (max 18°C on Wed afternoon, min 14°C on Fri morning). Mainly fresh winds.

Tue
1
Wednesday
2
Thursday
3
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)
1.3
SSW
5
1.4
SW
6
1.3
SW
6
1
SW
6
0.9
SSW
5
1
SSW
5
1.7
SSW
6
2.1
SSW
7
1.7
SSW
7
1.4
SSW
7
1.3
SSW
7
1.6
SW
7
1.6
SW
7
1.3
SW
7
1.2
SW
7
1.1
SW
7
1.3
SSW
5
1.6
SW
6
1.3
SW
6
Wave Graph
Metric surfscale
Energy kJ
87
123
101
59
47
56
194
373
254
165
150
221
221
147
128
111
83
184
128
Wind (km/h)
30
SSW
30
SSW
25
SW
15
SW
25
SW
25
SSW
30
S
30
SSW
25
SSW
25
SSW
25
SSW
30
SW
25
WSW
25
WSW
25
SW
30
SW
30
SSW
35
SW
15
W
Wind State
on
on
on
on
on
cross-on
cross-on
cross-on
on
cross-on
on
on
on
cross-on
on
on
on
on
cross-on
High Tide
00:40AM4.07m
1:01PM3.73m
1:22AM3.82m
1:47PM3.51m
Low Tide
7:16PM0.42m
7:43AM0.43m
7:59PM0.63m
8:28AM0.72m
8:50PM0.88m
cloud
cloud
light rain
rain showers
cloud
light rain
light rain
light rain
part cloud
part cloud
part cloud
part cloud
cloud
part cloud
part cloud
part cloud
cloud
light rain
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:28
6:30
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:07
8:06
8:02
 mm
2
1
1
5
3
1
4
Temp °C
16
16
17
16
16
15
15
16
18
17
18
17
18
17
17
17
17
17
15
Feels °C
11
11
14
14
12
12
10
12
15
15
16
14
14
14
14
13
13
12
14
  • 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.


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