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 04 Aug 2026 (local time)

Forecast update in  hr  min

Today's Cable Bay (Porth Trecastell) sea temperature is
16.9° 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 (04 Aug):

  • Morning surf: Morning surf (04 Aug, local time) - 3.5ft (1.1m), 5s period with SSW swell.
  • Afternoon surf: Afternoon surf (04 Aug, local time) - 4ft (1.2m), 5s period with SSW swell.
  • Evening surf: Evening surf (04 Aug, local time) - 4.5ft (1.3m), 6s period with SSW swell.

The current surf forecast for Cable Bay (Porth Trecastell) at 1PM is: 1.2m 5s primary swell from a South-southwest direction (forecast issued at 06:00am August 04). The wind direction is predicted to be cross-onshore.

Time (BST) & DateWave HeightWave Period
Morning (04 Aug)3.5ft (1.1m)5s
Afternoon (04 Aug)4ft (1.2m)5s
Evening (04 Aug)4.5ft (1.3m)6s

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


Short Range Forecast

Mostly dry. Very mild (max 19°C on Tue morning, min 13°C on Wed night). Winds decreasing (fresh winds from the W on Wed morning, light winds from the W by Thu night).

Tuesday
4
Wednesday
5
Thursday
6
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
8
0.9
SSW
4
1.1
SSW
5
1.2
SSW
5
1.2
SSW
5
1.3
SSW
5
1.3
SSW
6
0.9
SSW
6
0.8
SSW
6
1.4
W
5
1.6
W
5
1.5
W
6
1.2
WSW
5
1.1
W
5
1.3
WNW
5
1.4
NW
6
1.5
NW
6
1.4
NW
6
1.2
NW
5
0.4
SW
6
0.5
WSW
4
0.5
SW
6
0.2
SSW
6
Wave Graph
Metric surfscale
Energy kJ
10
31
64
74
74
95
108
55
49
90
147
141
78
57
91
110
138
110
80
13
9
16
6
Wind (km/h)
15
S
25
SSE
25
S
25
SSW
25
SSW
30
SSW
25
SSW
20
W
25
W
30
W
35
W
35
W
30
W
20
WNW
30
WNW
30
WNW
30
WNW
25
WNW
25
WNW
25
WNW
15
WSW
20
SSW
15
S
Wind State
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross
cross
cross
on
on
cross-on
High Tide
1:32PM3.51m
1:48AM3.77m
2:18PM3.37m
2:39AM3.55m
3:15PM3.22m
Low Tide
8:12AM0.50m
8:22PM0.79m
8:55AM0.70m
9:10PM0.99m
9:47AM0.92m
cloud
light rain
part cloud
part cloud
part cloud
clear
clear
part cloud
cloud
cloud
cloud
part cloud
part cloud
clear
clear
clear
part cloud
clear
part cloud
clear
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:37
5:39
5:41
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:07
9:06
9:04
 mm
2
Temp °C
18
17
18
19
19
18
17
16
14
14
14
15
16
16
15
14
13
13
13
14
15
15
15
Feels °C
16
14
16
16
16
14
14
14
10
9
7
8
10
12
9
8
8
8
8
9
12
11
12
  • 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 

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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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