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 03 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 (03 Aug):

  • Morning surf: Morning surf (03 Aug, local time) - 1ft (0.3m), 4s period with SSE swell.
  • Afternoon surf: Afternoon surf (03 Aug, local time) - 1ft (0.3m), 8s period with SW swell.
  • Evening surf: Evening surf (03 Aug, local time) - 1ft (0.3m), 8s period with SW swell.

The current surf forecast for Cable Bay (Porth Trecastell) at 2PM is: 0.2m 8s primary swell from a West-southwest direction and 0.3m 4s secondary swell from a South-southeast direction (forecast issued at 06:00am August 03). An open ocean swell of 0.2m 4s is not directed at the surf break. The wind direction is predicted to be glassy.

Time (BST) & DateWave HeightWave Period
Morning (03 Aug)1ft (0.3m)4s
Afternoon (03 Aug)1ft (0.3m)8s
Evening (03 Aug)1ft (0.3m)8s

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


Short Range Forecast

Light rain (total 6mm), mostly falling on Mon night. Warm (max 22°C on Mon morning, min 14°C on Wed night). Winds increasing (calm on Mon night, strong winds from the W by Wed afternoon).

Monday
3
Tuesday
4
Wednesday
5
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)
0.2
WSW
9
0.1
SW
9
0.3
SSE
4
0.2
WSW
8
0.3
SW
8
0.3
SW
8
0.3
SW
8
0.3
SW
8
0.3
SW
8
0.7
SSW
4
1.2
SSW
5
1.2
SSW
5
1.2
SSW
5
1.3
SSW
5
1.5
SSW
6
1.3
SSW
6
1.1
SSW
6
1.6
WSW
5
1.9
WSW
6
2.1
WSW
6
1.9
WSW
6
1.5
W
6
1.6
W
6
Wave Graph
Metric surfscale
Energy kJ
8
3
3
7
11
11
11
11
10
16
64
83
74
99
139
112
91
106
215
310
246
146
164
Wind (km/h)
15
ENE
10
ESE
10
SSE
5
WSW
15
W
10
SE
5
ENE
10
E
15
SSE
20
SE
20
SSE
25
SSW
30
SSW
30
SSW
30
SSW
20
SSW
25
WSW
30
W
40
WSW
40
WSW
40
W
35
W
35
W
Wind State
cross-off
cross-off
cross-on
on
cross-on
cross
glassy
cross-off
cross-on
cross
cross-on
cross-on
cross-on
cross-on
cross-on
on
cross-on
cross-on
cross-on
on
cross-on
cross-on
cross-on
High Tide
12:54PM3.59m
1:07AM3.94m
1:32PM3.51m
1:48AM3.77m
2:18PM3.37m
Low Tide
7:33AM0.34m
7:41PM0.62m
8:12AM0.50m
8:22PM0.79m
8:55AM0.70m
9:10PM0.99m
cloud
cloud
part cloud
cloud
cloud
cloud
light rain
light rain
light rain
light rain
light rain
light rain
clear
clear
clear
part cloud
cloud
cloud
clear
part cloud
cloud
part cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:37
5:37
5:39
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:09
9:07
9:06
 mm
1
1
1
1
1
1
Temp °C
18
18
21
22
20
17
17
17
17
17
17
18
19
18
17
16
15
15
15
16
15
16
15
Feels °C
16
16
19
20
17
16
17
16
15
14
14
15
15
13
13
14
11
10
8
8
7
9
9
  • 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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