Cable Bay (Porth Trecastell) Surf Break

Lat Long: 53.22° N 4.51° W

Cable Bay (Porth Trecastell) 48 hour detailed Surf Forecast

Issued: 12 pm 02 Aug 2026 (local time)

Forecast update in  hr  min

Today's Cable Bay (Porth Trecastell) sea temperature is
16.6° C
1.2° 

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 (02 Aug):

  • Morning surf: Morning surf (02 Aug, local time) - 1ft (0.3m), 4s period with SSW swell.
  • Afternoon surf: Afternoon surf (02 Aug, local time) - 0.5ft (0.1m), 9s period with SW swell.
  • Evening surf: Evening surf (02 Aug, local time) - 0.5ft (0.1m), 8s period with SW swell.

The current surf forecast for Cable Bay (Porth Trecastell) at 8PM is: 0.1m 8s primary swell from a Southwest direction (forecast issued at 12:00pm August 02). An open ocean swell of 0.3m 2s is not directed at the surf break. The wind direction is predicted to be offshore.

Time (BST) & DateWave HeightWave Period
Morning (02 Aug)1ft (0.3m)4s
Afternoon (02 Aug)0.5ft (0.1m)9s
Evening (02 Aug)0.5ft (0.1m)8s

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


Short Range Forecast

Light rain (total 5mm), mostly falling on Mon night. Warm (max 23°C on Mon morning, min 15°C on Tue night). Winds increasing (calm on Mon afternoon, fresh winds from the SSW by Tue afternoon).

Sun
2
Monday
3
Tuesday
4
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
Swell
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
SSW
4
0.1
W
9
0.1
SW
9
0.1
SW
8
0.1
W
10
0.1
W
10
0.1
SW
9
0.1
SW
9
0.1
SW
9
0.2
WSW
8
0.3
SW
8
0.3
SW
8
0.3
SW
8
0.3
SW
8
0.3
SW
8
0.3
SW
8
1
SSW
5
1.1
SSW
5
1.2
SSW
5
1.5
SSW
6
1.6
SSW
6
Wave Graph
Metric surfscale
Energy kJ
3
1
3
3
3
3
3
3
3
7
11
11
11
10
10
10
42
55
72
134
177
Wind (km/h)
5
SE
10
WSW
10
NNW
20
NE
20
NE
15
NNE
10
E
10
ESE
10
SSE
10
SW
15
NW
0
SSW
5
S
10
SSW
15
SSW
20
SSE
20
S
30
S
30
SSW
30
SSW
30
SSW
Wind State
glassy
on
cross-off
off
off
off
cross-off
cross-off
cross-on
on
cross
glassy
cross-on
cross-on
cross-on
cross
cross-on
cross-on
on
cross-on
cross-on
High Tide
12:20PM3.64m
00:32AM4.05m
12:54PM3.59m
1:07AM3.94m
1:32PM3.51m
Low Tide
7:04PM0.48m
7:33AM0.34m
7:41PM0.62m
8:12AM0.50m
8:22PM0.79m
cloud
cloud
cloud
cloud
cloud
cloud
cloud
part cloud
part cloud
part cloud
cloud
cloud
cloud
light rain
light rain
light rain
cloud
cloud
cloud
cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:35
5:37
5:37
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:12
9:09
9:07
 mm
1
2
1
Temp °C
17
17
18
17
17
17
17
17
21
23
21
20
19
18
16
16
18
19
19
19
17
Feels °C
16
15
16
13
13
15
15
15
19
21
18
20
17
17
14
14
16
16
14
15
13
  • 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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