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 27 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 (27 Sep):

  • Morning surf: Morning surf (27 Sep, local time) - 5ft (1.6m), 6s period with S swell.
  • Afternoon surf: Afternoon surf (27 Sep, local time) - 6.5ft (2.0m), 8s period with SW swell.
  • Evening surf: Evening surf (27 Sep, local time) - 3.5ft (1.1m), 7s period with SSW swell.

The current surf forecast for Cable Bay (Porth Trecastell) at 6AM is: 1.2m 5s primary swell from a South-southwest direction (forecast issued at 12:00am September 27). The wind direction is predicted to be cross-onshore.

Time (BST) & DateWave HeightWave Period
Morning (27 Sep)5ft (1.6m)6s
Afternoon (27 Sep)6.5ft (2.0m)8s
Evening (27 Sep)3.5ft (1.1m)7s

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


Short Range Forecast

Light rain (total 5mm), mostly falling on Sun morning. Very mild (max 19°C on Tue afternoon, min 12°C on Mon night). Winds decreasing (near gales from the S on Sun morning, light winds from the SSE by Mon afternoon).

Sunday
27
Monday
28
Tuesday
29
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
2
0
0
1
1
1
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)
1.3
SSW
5
1.3
SSW
5
1.2
SSW
5
1.6
S
6
2.5
SSW
7
2
SW
8
1.3
SSW
7
1
SSW
7
0.9
SSW
7
0.8
SSW
7
0.7
SW
7
0.7
SW
7
0.6
SSW
7
0.5
SW
7
0.5
SW
7
0.4
SW
7
0.4
SW
7
0.7
SSE
4
0.6
SSE
4
0.6
SE
4
0.4
SW
5
0.6
S
5
0.7
SE
4
1.4
SSE
5
Wave Graph
Metric surfscale
Energy kJ
86
85
84
152
752
435
169
114
96
70
54
51
33
23
23
11
11
15
16
12
7
16
15
105
Wind (km/h)
25
S
25
SSE
25
SSE
35
SE
55
S
35
W
10
W
20
W
15
W
5
SW
10
SSW
10
SSE
10
S
5
SSE
10
ENE
10
ESE
15
ESE
10
ESE
10
E
10
ESE
15
SE
20
SE
30
SE
45
SE
Wind State
cross-on
cross-on
cross
cross
cross-on
cross-on
cross-on
cross-on
cross-on
on
cross-on
cross-on
cross-on
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross
cross
cross
High Tide
10:18AM4.03m
10:29PM4.36m
10:48AM4.13m
11:02PM4.37m
11:22AM4.15m
Low Tide
4:46AM-0.05m
4:58PM0.11m
5:22AM-0.09m
5:36PM0.07m
5:59AM-0.02m
6:15PM0.12m
cloud
cloud
cloud
rain showers
light rain
rain showers
clear
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
part cloud
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
—
—
7:11
—
—
—
—
—
—
—
7:13
—
—
—
—
—
—
—
7:13
—
—
—
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
—
—
—
—
—
7:05
—
—
—
—
—
—
—
7:02
—
—
—
—
—
—
—
7:00
—
 mm
—
—
—
2
2
1
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Temp °C
14
14
13
14
16
14
15
15
14
13
13
13
14
15
15
14
14
13
12
13
17
19
19
20
Feels °C
9
10
8
7
7
7
13
11
11
11
11
11
12
13
12
11
11
10
9
11
14
16
14
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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