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 27 Aug 2026 (local time)

Forecast update in  hr  min

Today's Cable Bay (Porth Trecastell) sea temperature is
17.5°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 Aug):

  • Morning surf: Morning surf (27 Aug, local time) - 0.5ft (0.2m), 7s period with SSW swell.
  • Afternoon surf: Afternoon surf (27 Aug, local time) - 0.5ft (0.2m), 7s period with SSW swell.
  • Evening surf: Evening surf (27 Aug, local time) - 0.5ft (0.2m), 6s period with SSW swell.

The current surf forecast for Cable Bay (Porth Trecastell) at 7PM is: 0.2m 6s primary swell from a South-southwest direction (forecast issued at 12:00pm August 27). An open ocean swell of 0.2m 4s is not directed at the surf break. The wind direction is predicted to be onshore.

Time (BST) & DateWave HeightWave Period
Morning (27 Aug)0.5ft (0.2m)7s
Afternoon (27 Aug)0.5ft (0.2m)7s
Evening (27 Aug)0.5ft (0.2m)6s

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


Short Range Forecast

Heavy rain (total 21mm), heaviest during Thu afternoon. Very mild (max 17°C on Thu morning, min 15°C on Sat morning). Wind will be generally light.

Thu
27
Friday
28
Saturday
29
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)
0.2
SSW
7
0.2
SSW
7
0.2
SSW
7
0.2
SSW
6
0.2
SSW
6
0.2
SSW
7
0.3
SSW
6
0.4
SW
6
0.4
SW
6
0.4
SSW
6
0.5
SSW
6
0.7
SSW
6
0.8
SSW
6
0.8
SSW
6
1.1
SSW
6
1.1
SSW
6
0.9
SSW
6
0.8
SSW
6
0.9
SSW
6
0.9
SSW
7
0.9
SSW
7
Wave Graph
Metric surfscale
Energy kJ
6
4
4
4
4
4
8
10
10
16
22
36
48
54
94
91
62
50
68
70
79
Wind (km/h)
20
ENE
15
ENE
5
NNE
5
WSW
5
S
15
S
15
S
15
S
10
SSW
10
W
10
WNW
10
SW
20
S
25
SSW
25
S
20
S
15
SE
15
SE
20
WSW
20
W
20
NW
Wind State
off
cross-off
glassy
on
cross-on
cross-on
cross-on
cross-on
on
cross-on
cross-on
on
cross-on
cross-on
cross-on
cross-on
cross
cross
cross-on
cross-on
cross
High Tide
9:55AM3.58m
10:04PM4.02m
10:23AM3.73m
10:32PM4.18m
10:51AM3.84m
Low Tide
4:20PM0.46m
4:45AM0.20m
4:53PM0.30m
5:18AM0.06m
5:26PM0.21m
light rain
light rain
mod rain
light rain
cloud
cloud
cloud
cloud
part cloud
light rain
rain showers
clear
clear
part cloud
cloud
light rain
light rain
rain showers
part cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:16
6:18
6:20
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:20
8:16
8:15
 mm
1
2
6
1
1
1
2
5
2
Temp °C
17
17
17
17
16
16
16
16
17
17
17
17
16
16
16
16
15
17
17
16
15
Feels °C
15
16
18
18
17
15
15
14
17
17
16
16
14
13
13
13
14
16
15
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 

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Cable Bay (Porth Trecastell) surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


Nearest locationNearest