Cable Bay (Porth Trecastell) Surf Break

Lat Long: 53.22° N 4.51° W

Cable Bay (Porth Trecastell) 48 hour detailed Surf Forecast

Issued: 6 pm 09 Jul 2026 (local time)

Forecast update in  hr  min

Today's Cable Bay (Porth Trecastell) sea temperature is
15.6° C
1.1° 

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 (09 Jul):

  • Afternoon surf: Afternoon surf (09 Jul, local time) - 0.5ft (0.1m), 11s period with S swell.
  • Evening surf: Evening surf (09 Jul, local time) - 0.5ft (0.1m), 4s period with SW swell.

The current surf forecast for Cable Bay (Porth Trecastell) at 11PM is: 0.1m 4s primary swell from a Southwest direction (forecast issued at 06:00pm July 09). The wind direction is predicted to be offshore.

Time (BST) & DateWave HeightWave Period
Morning (09 Jul)--
Afternoon (09 Jul)0.5ft (0.1m)11s
Evening (09 Jul)0.5ft (0.1m)4s

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


Short Range Forecast

Light rain (total 4mm), mostly falling on Sat night. Warm (max 24°C on Fri afternoon, min 16°C on Fri night). Wind will be generally light.

Thu
9
Friday
10
Saturday
11
Sun
12
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
1 AM
4 AM
7 AM
10 AM
1 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)
0.2
WNW
3
0.1
SW
4
0.1
SW
4
0.4
N
3
0.4
N
3
0.5
N
3
0.7
N
4
1.1
N
5
1.2
NNW
6
1.1
NNW
6
0.9
NNW
6
0.9
NNW
5
0.6
NNW
5
0.7
N
4
0.7
N
4
0.7
N
5
0.5
NE
5
0.5
NE
5
0.6
NE
5
0.7
NE
4
Wave Graph
Metric surfscale
Energy kJ
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Wind (km/h)
10
NW
15
N
15
NNE
15
NE
15
NE
15
NE
15
NNE
15
NNE
15
N
15
NNE
20
N
20
N
15
N
10
NE
10
NNW
5
NE
15
NE
25
NE
20
NNE
20
ENE
15
ENE
20
ENE
25
ENE
20
ENE
Wind State
cross
cross-off
cross-off
off
off
off
off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
off
cross-off
glassy
off
off
off
cross-off
cross-off
off
cross-off
off
High Tide
5:08PM3.17m
5:31AM3.38m
6:16PM3.29m
6:42AM3.46m
7:20PM3.49m
7:48AM3.62m
Low Tide
11:55PM1.20m
12:38PM0.92m
1:12AM1.03m
1:49PM0.78m
2:21AM0.73m
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
rain showers
clear
part cloud
clear
rain showers
rain showers
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:01
5:03
5:05
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:43
9:43
9:42
9:40
 mm
1
1
2
Temp °C
18
18
17
17
17
17
20
23
24
22
20
18
16
18
21
24
24
21
20
21
19
17
18
21
Feels °C
17
17
16
15
15
15
18
22
23
21
18
16
15
18
22
25
23
19
18
18
17
14
15
18
  • 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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