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 29 Jul 2026 (local time)

Forecast update in  hr  min

Today's Cable Bay (Porth Trecastell) sea temperature is
16.7° C
1.3° 

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 (29 Jul):

  • Afternoon surf: Afternoon surf (29 Jul, local time) - 3ft (0.9m), 4s period with SSW swell.
  • Evening surf: Evening surf (29 Jul, local time) - 3ft (0.9m), 5s period with SW swell.

The current surf forecast for Cable Bay (Porth Trecastell) at 9PM is: 0.9m 5s primary swell from a Southwest direction (forecast issued at 06:00pm July 29). The wind direction is predicted to be onshore.

Time (BST) & DateWave HeightWave Period
Morning (29 Jul)--
Afternoon (29 Jul)3ft (0.9m)4s
Evening (29 Jul)3ft (0.9m)5s

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


Short Range Forecast

Mostly dry. Very mild (max 18°C on Wed afternoon, min 13°C on Thu night). Wind will be generally light.

Wed
29
Thursday
30
Friday
31
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
SSW
4
1
SSW
5
0.9
SW
5
0.7
SW
5
0.6
SSW
5
0.4
SSW
5
0.7
WNW
4
0.6
WNW
4
0.4
WNW
4
0.3
WNW
3
0.3
SW
2
0.3
WSW
3
0.5
W
3
0.5
WNW
4
0.6
W
4
0.5
W
4
0.4
NW
3
0.6
SW
3
0.6
SW
4
Wave Graph
Metric surfscale
Energy kJ
37
48
38
27
15
8
12
10
5
2
1
2
5
7
10
6
3
9
12
Wind (km/h)
30
SSW
25
SSW
5
W
10
WNW
5
WNW
20
WNW
20
WNW
20
WNW
10
NW
15
W
5
SW
10
SSW
15
NW
15
WNW
15
W
15
WSW
20
SW
20
SSW
15
SW
Wind State
cross-on
cross-on
glassy
cross-on
cross-on
cross
cross
cross
cross
cross-on
glassy
cross-on
cross
cross-on
cross-on
on
on
cross-on
on
High Tide
10:30PM3.90m
10:49AM3.58m
11:01PM4.02m
11:19AM3.63m
Low Tide
4:47PM0.55m
5:13AM0.35m
5:20PM0.43m
5:48AM0.25m
5:54PM0.38m
part cloud
cloud
cloud
cloud
cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:30
5:31
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:17
9:16
9:15
 mm
Temp °C
18
18
16
15
15
14
14
14
16
16
15
15
14
13
13
14
15
16
17
Feels °C
14
15
17
14
15
11
10
10
14
13
14
13
11
10
10
10
11
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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