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 16 Aug 2026 (local time)

Forecast update in  hr  min

Today's Cable Bay (Porth Trecastell) sea temperature is
18.2° C
2.5° 

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 (16 Aug):

  • Evening surf: Evening surf (16 Aug, local time) - 1.5ft (0.4m), 3s period with SSW swell.

The current surf forecast for Cable Bay (Porth Trecastell) at 11PM is: 0.5m 3s primary swell from a South-southwest direction (forecast issued at 06:00pm August 16). The wind direction is predicted to be cross-onshore.

Time (BST) & DateWave HeightWave Period
Morning (16 Aug)--
Afternoon (16 Aug)--
Evening (16 Aug)1.5ft (0.4m)3s

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


Short Range Forecast

Light rain (total 2mm), mostly falling on Mon night. Very mild (max 18°C on Tue afternoon, min 14°C on Tue night). Winds increasing (light winds from the WSW on Sun night, fresh winds from the SSW by Mon night).

Sun
16
Monday
17
Tuesday
18
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)
0.2
SSW
2
0.4
SSW
3
0.5
SSW
3
0.4
SW
4
0.4
SW
4
0.4
SW
4
0.4
SW
5
0.4
SW
5
0.3
SW
5
0.4
SW
5
0.8
SSW
4
0.8
SW
4
0.8
SW
5
0.6
SW
5
0.8
WSW
4
0.7
WSW
4
0.5
SW
6
0.6
SSW
3
0.8
SW
4
Wave Graph
Metric surfscale
Energy kJ
1
3
7
5
5
4
6
7
4
7
18
23
25
17
24
17
16
7
19
Wind (km/h)
20
SW
20
SSW
15
S
10
S
5
WSW
15
WNW
10
WNW
10
W
15
WSW
15
S
30
SSW
20
SW
25
W
25
WNW
20
W
20
WSW
20
SW
10
SW
20
W
Wind State
on
cross-on
cross-on
cross-on
on
cross
cross-on
cross-on
on
cross-on
cross-on
on
cross-on
cross
cross-on
on
on
on
cross-on
High Tide
00:40AM4.27m
1:04PM3.73m
1:21AM3.95m
1:44PM3.51m
Low Tide
7:05PM0.20m
7:34AM0.15m
7:45PM0.46m
8:13AM0.53m
8:25PM0.77m
cloud
cloud
cloud
cloud
cloud
part cloud
part cloud
cloud
cloud
cloud
cloud
light rain
cloud
cloud
cloud
part cloud
cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:00
6:01
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:44
8:42
8:39
 mm
2
Temp °C
15
15
15
16
16
15
15
15
15
16
16
17
17
15
15
16
17
18
18
Feels °C
11
11
13
16
16
14
14
14
13
13
11
15
15
12
12
12
14
16
15
  • 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