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 27 Jul 2026 (local time)

Forecast update in  hr  min

Today's Cable Bay (Porth Trecastell) sea temperature is
17.1° C
1.8° 

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 (27 Jul):

  • Morning surf: Morning surf (27 Jul, local time) - 2ft (0.6m), 4s period with W swell.
  • Afternoon surf: Afternoon surf (27 Jul, local time) - 2.5ft (0.8m), 4s period with SW swell.
  • Evening surf: Evening surf (27 Jul, local time) - 2.5ft (0.7m), 4s period with SW swell.

The current surf forecast for Cable Bay (Porth Trecastell) at 10AM is: 0.6m 4s primary swell from a West direction and 0.3m 5s secondary swell from a Northwest direction (forecast issued at 06:00am July 27). An open ocean swell of 0.4m 5s is not directed at the surf break. The wind direction is predicted to be onshore.

Time (BST) & DateWave HeightWave Period
Morning (27 Jul)2ft (0.6m)4s
Afternoon (27 Jul)2.5ft (0.8m)4s
Evening (27 Jul)2.5ft (0.7m)4s

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


Short Range Forecast

Light rain (total 5mm), mostly falling on Wed night. Very mild (max 18°C on Mon afternoon, min 14°C on Mon morning). Winds decreasing (fresh winds from the SSW on Tue morning, light winds from the SSW by Wed night).

Monday
27
Tuesday
28
Wednesday
29
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)
1
NW
5
0.8
WNW
5
0.6
W
4
0.7
SW
4
0.9
SW
4
0.8
SW
4
0.6
SW
4
0.7
SW
5
0.8
SSW
6
0.9
SSW
4
1.3
SSW
5
1.3
SSW
5
1.4
SSW
5
1.4
SW
6
1.4
SW
6
1.1
SW
5
0.9
SSW
5
0.9
SW
4
0.7
SW
4
0.6
SSW
4
0.6
SSW
4
0.6
SSW
4
0.8
SSW
4
Wave Graph
Metric surfscale
Energy kJ
45
27
12
14
26
21
15
24
39
29
80
95
106
123
110
66
39
28
18
10
9
10
26
Wind (km/h)
20
WNW
20
WNW
20
SW
25
SSW
25
SSW
20
SSW
15
SSW
15
S
20
S
30
S
30
SSW
30
SSW
30
SSW
30
SSW
25
S
25
S
20
S
20
S
25
SSW
25
SSW
20
SSW
25
SSW
25
S
Wind State
cross
cross-on
on
on
on
on
cross-on
cross-on
cross-on
cross-on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
cross-on
cross-on
High Tide
9:01AM3.24m
9:19PM3.52m
9:41AM3.38m
9:56PM3.72m
10:17AM3.50m
Low Tide
3:23AM0.93m
3:37PM0.90m
4:03AM0.71m
4:13PM0.71m
4:39AM0.51m
4:47PM0.55m
clear
clear
cloud
cloud
cloud
cloud
cloud
part cloud
part cloud
cloud
part cloud
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:24
5:26
5:28
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:22
9:20
9:17
 mm
Temp °C
14
14
15
14
17
18
17
17
17
16
17
18
18
18
17
17
16
16
17
18
18
18
17
Feels °C
11
11
12
10
14
16
16
16
16
13
13
14
14
14
14
15
14
14
14
15
15
15
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 

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