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 14 Sep 2026 (local time)

Forecast update in  hr  min

Today's Cable Bay (Porth Trecastell) sea temperature is
16.8°C
1.5° 

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 (14 Sep):

  • Morning surf: Morning surf (14 Sep, local time) - 2.5ft (0.7m), 5s period with SSW swell.
  • Afternoon surf: Afternoon surf (14 Sep, local time) - 4.5ft (1.3m), 5s period with SSW swell.
  • Evening surf: Evening surf (14 Sep, local time) - 6ft (1.9m), 6s period with SSW swell.

The current surf forecast for Cable Bay (Porth Trecastell) at 4AM is: 0.7m 4s primary swell from a South-southwest direction (forecast issued at 12:00am September 14). The wind direction is predicted to be cross-onshore.

Time (BST) & DateWave HeightWave Period
Morning (14 Sep)2.5ft (0.7m)5s
Afternoon (14 Sep)4.5ft (1.3m)5s
Evening (14 Sep)6ft (1.9m)6s

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


Short Range Forecast

Light rain (total 4mm), mostly falling on Mon night. Very mild (max 17°C on Sun night, min 13°C on Tue night). Winds increasing (light winds from the S on Sun night, fresh winds from the SSW by Mon night).

Monday
14
Tuesday
15
Wednesday
16
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)
0.6
SSW
6
0.7
SSW
4
0.7
SSW
5
0.7
SSW
5
0.9
SSW
4
1.4
SSW
5
1.7
SSW
6
2
SSW
6
1.9
SW
6
1.5
SW
6
1.4
SW
6
1.6
WSW
5
1.4
W
5
1.1
WSW
5
0.6
SW
6
0.6
SSW
6
0.5
SW
6
0.4
SW
6
0.3
SW
6
0.3
SW
6
0.3
SW
6
0.6
W
4
0.6
W
4
0.7
SW
4
Wave Graph
Metric surfscale
Energy kJ
22
16
20
23
29
117
191
309
269
172
147
138
114
69
26
22
16
9
6
6
5
12
9
15
Wind (km/h)
20
SSW
20
S
20
S
20
S
30
SSW
35
S
30
SSW
35
SSW
30
SW
25
W
25
W
30
W
30
W
20
W
15
NW
25
WNW
30
NW
30
NW
35
NW
30
NW
25
WNW
20
W
20
SW
25
SW
Wind State
cross-on
cross-on
cross-on
cross-on
on
cross-on
cross-on
on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross
cross
cross
cross
cross
cross
cross-on
on
on
High Tide
11:30PM4.39m
11:50AM4.02m
00:07AM4.16m
12:24PM3.85m
00:44AM3.84m
1:00PM3.60m
Low Tide
6:23AM-0.01m
6:35PM0.19m
6:58AM0.30m
7:12PM0.44m
7:33AM0.66m
7:49PM0.75m
cloud
cloud
cloud
cloud
cloud
part cloud
cloud
light rain
light rain
rain showers
part cloud
clear
clear
clear
part cloud
clear
clear
cloud
cloud
cloud
cloud
part cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:48
6:50
6:52
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:37
7:35
7:31
 mm
2
1
1
Temp °C
16
16
16
17
16
17
17
17
16
16
15
14
14
16
15
15
13
13
14
14
14
14
15
15
Feels °C
14
14
14
16
12
12
13
12
12
12
11
8
8
12
12
10
7
7
7
8
9
10
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 

Eyeball surf reportRecent Eyeball Surf Reports for Wales - Anglesy

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    Hells Mouth (Porth Neigwl), 45 km away
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