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 28 Jul 2026 (local time)

Forecast update in  hr  min

Today's Cable Bay (Porth Trecastell) sea temperature is
16.7° 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 (28 Jul):

  • Morning surf: Morning surf (28 Jul, local time) - 4.5ft (1.3m), 5s period with SSW swell.
  • Afternoon surf: Afternoon surf (28 Jul, local time) - 4.5ft (1.4m), 5s period with SSW swell.
  • Evening surf: Evening surf (28 Jul, local time) - 4.5ft (1.4m), 6s period with SW swell.

The current surf forecast for Cable Bay (Porth Trecastell) at 4PM is: 1.5m 6s primary swell from a South-southwest direction (forecast issued at 12:00pm July 28). The wind direction is predicted to be cross-onshore.

Time (BST) & DateWave HeightWave Period
Morning (28 Jul)4.5ft (1.3m)5s
Afternoon (28 Jul)4.5ft (1.4m)5s
Evening (28 Jul)4.5ft (1.4m)6s

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


Short Range Forecast

Some drizzle, heaviest during Wed afternoon. Very mild (max 18°C on Tue afternoon, min 13°C on Thu morning). Winds decreasing (fresh winds from the SSW on Tue afternoon, light winds from the W by Thu night).

Tue
28
Wednesday
29
Thursday
30
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)
1.4
SSW
6
1.3
SSW
5
1.5
SSW
6
1.4
SW
6
1.4
SW
6
1.2
SW
5
1
SW
5
0.8
SSW
4
0.8
SSW
4
0.7
SSW
4
0.8
SSW
4
1.1
SW
5
0.9
SW
5
0.6
SW
5
0.7
WSW
4
0.8
W
4
0.9
W
4
0.9
WNW
5
0.7
W
4
0.4
NW
4
0.3
NW
4
Wave Graph
Metric surfscale
Energy kJ
114
99
129
128
110
82
47
26
22
15
18
51
42
18
18
20
28
35
19
4
3
Wind (km/h)
30
SSW
35
SSW
35
SSW
30
SSW
25
S
25
SSW
20
S
25
S
25
SSW
25
SSW
25
SSW
25
SSW
5
WNW
10
W
20
WNW
20
W
30
WNW
20
WNW
15
WSW
15
SW
10
S
Wind State
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
on
cross
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
cross-on
High Tide
9:41AM3.38m
9:56PM3.72m
10:17AM3.50m
10:30PM3.90m
10:49AM3.58m
Low Tide
4:13PM0.71m
4:39AM0.51m
4:47PM0.55m
5:13AM0.35m
5:20PM0.43m
cloud
cloud
part cloud
clear
clear
clear
clear
part cloud
part cloud
part cloud
cloud
rain showers
cloud
clear
clear
clear
cloud
clear
clear
clear
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:26
5:28
5:30
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:20
9:17
9:16
 mm
1
Temp °C
16
17
18
17
17
17
16
16
17
18
18
17
16
16
14
14
13
14
15
15
15
Feels °C
12
12
13
13
14
14
13
13
13
14
14
14
16
16
11
11
8
10
11
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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