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 am 30 Sep 2026 (local time)

Forecast update in  hr  min

Today's Cable Bay (Porth Trecastell) sea temperature is
16.7°C
1.9° 

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 (30 Sep):

  • Morning surf: Morning surf (30 Sep, local time) - 7ft (2.2m), 10s period with SSW swell.
  • Afternoon surf: Afternoon surf (30 Sep, local time) - 8ft (2.5m), 7s period with SSW swell.
  • Evening surf: Evening surf (30 Sep, local time) - 7ft (2.1m), 11s period with SSW swell.

The current surf forecast for Cable Bay (Porth Trecastell) at 9AM is: 2.2m 10s primary swell from a South-southwest direction (forecast issued at 12:00am September 30). The wind direction is predicted to be cross-onshore.

Time (BST) & DateWave HeightWave Period
Morning (30 Sep)7ft (2.2m)10s
Afternoon (30 Sep)8ft (2.5m)7s
Evening (30 Sep)7ft (2.1m)11s

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


Short Range Forecast

Heavy rain (total 20mm), heaviest during Tue night. Very mild (max 19°C on Tue night, min 14°C on Wed night). Winds increasing (moderate winds from the SW on Wed night, strong winds from the SSW by Thu night).

Wednesday
30
Thursday
1
Friday
2
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
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
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)
2.4
S
8
3
SSW
9
2.3
SSW
10
2.2
SSW
11
2.4
SSW
7
2.5
SSW
7
2.3
SSW
11
2
SSW
11
1.9
SW
11
1.6
SW
11
1.6
SW
10
1.4
SW
10
1.4
SW
10
1.5
SSW
10
1.7
SSW
6
1.9
SSW
6
2
SSW
6
2.1
SSW
7
2.5
SSW
7
2.5
SSW
7
2
SSW
7
2.4
SSW
7
2.2
SSW
7
1.9
SSW
7
Wave Graph
Metric surfscale
Energy kJ
706
1141
1040
1102
514
565
1221
920
777
593
527
420
412
457
202
279
325
406
638
655
395
540
476
332
Wind (km/h)
45
SSE
25
WSW
35
S
40
S
40
S
40
S
35
S
30
SSW
20
SW
20
SW
20
SW
25
SW
25
SW
30
SSW
35
SSW
35
S
35
S
40
S
45
SSW
35
SSW
35
SSW
40
SSW
35
SSW
30
SSW
Wind State
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
on
on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
cross-on
on
cross-on
cross-on
High Tide
11:39PM4.28m
11:58AM4.06m
00:19AM4.07m
12:39PM3.87m
1:06AM3.75m
1:27PM3.61m
Low Tide
6:39AM0.16m
6:57PM0.27m
7:22AM0.44m
7:45PM0.50m
8:12AM0.77m
8:42PM0.76m
light rain
mod rain
rain showers
clear
clear
rain showers
clear
thunderstorm
light rain
clear
cloud
clear
clear
cloud
clear
clear
part cloud
cloud
light rain
light rain
rain showers
rain showers
part cloud
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
—
—
7:16
—
—
—
—
—
—
—
7:18
—
—
—
—
—
—
—
7:20
—
—
—
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
—
—
—
—
6:58
—
—
—
—
—
—
—
6:55
—
—
—
—
—
—
—
6:52
—
—
 mm
3
6
2
—
—
1
—
1
1
—
—
—
—
—
—
—
—
—
2
2
1
1
—
1
Temp °C
18
15
15
16
16
16
15
15
14
14
14
14
14
15
15
14
15
15
15
15
15
15
15
15
Feels °C
11
11
9
9
8
8
8
10
10
10
10
9
9
9
9
7
9
8
8
9
9
9
10
10
  • 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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