Cable Bay (Porth Trecastell) Surf Break

Lat Long: 53.22° N 4.51° W

Cable Bay (Porth Trecastell) 48 hour detailed Surf Forecast

Issued: 11 pm 28 Oct 2026 (local time)

Forecast update in  hr  min

Today's Cable Bay (Porth Trecastell) sea temperature is
14.2°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 (29 Oct):

  • Morning surf: Morning surf (29 Oct, local time) - 3.5ft (1.0m), 5s period with SSW swell.
  • Afternoon surf: Afternoon surf (29 Oct, local time) - 4ft (1.2m), 5s period with SSW swell.
  • Evening surf: Evening surf (29 Oct, local time) - 4.5ft (1.3m), 6s period with SSW swell.

The current surf forecast for Cable Bay (Porth Trecastell) at 6AM is: 1.1m 5s primary swell from a Southwest direction (forecast issued at 11:00pm October 28). The wind direction is predicted to be cross-onshore.

Time (GMT) & DateWave HeightWave Period
Morning (29 Oct)3.5ft (1.0m)5s
Afternoon (29 Oct)4ft (1.2m)5s
Evening (29 Oct)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 14°C on Wed night, min 11°C on Thu night). Wind will be generally light.

Thursday
29
Friday
30
9 PM
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
Rating
(10 max)
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
Wave
Height (m)
Direction
Period (s)
1.1
SW
7
1.2
SW
7
1.1
SW
5
1.1
SW
5
1
SSW
5
1.2
SSW
5
1.2
SSW
5
1.2
SSW
6
1.3
SSW
6
1.5
SSW
6
1.6
SSW
6
1.5
SSW
6
1.5
SSW
6
1.4
SSW
6
1.3
SSW
6
1.1
SSW
6
0.9
SSW
7
Wave Graph
Metric surfscale
Energy kJ
136
135
64
62
50
67
78
84
111
156
197
186
177
146
131
97
76
Wind (km/h)
25
SSW
25
SSW
20
SSW
20
S
25
S
25
S
20
SSE
20
SSE
25
SSE
25
SSE
30
S
25
SSE
20
SSE
25
S
20
S
15
SSE
15
SSE
Wind State
on
on
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
High Tide
10:22PM4.23m
10:41AM4.17m
11:07PM4.00m
11:26AM4.00m
Low Tide
5:22AM0.18m
5:46PM0.12m
6:09AM0.43m
6:38PM0.32m
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
part cloud
part cloud
cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
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—
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7:09
—
—
—
—
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—
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7:11
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—
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—
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<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
—
—
—
—
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4:52
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4:51
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 mm
—
—
—
—
—
—
—
—
—
—
—
—
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Temp °C
14
13
13
13
12
12
13
13
12
12
12
11
12
13
13
13
13
Feels °C
10
9
9
10
8
7
9
10
7
7
7
6
8
8
9
10
11
  • 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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