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 16 Jul 2026 (local time)

Forecast update in  hr  min

Today's Cable Bay (Porth Trecastell) sea temperature is
17.1° C
2.2° 

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 (16 Jul):

  • Morning surf: Morning surf (16 Jul, local time) - 0.5ft (0.1m), 14s period with SW swell.
  • Afternoon surf: Afternoon surf (16 Jul, local time) - 0.5ft (0.1m), 14s period with SW swell.
  • Evening surf: Evening surf (16 Jul, local time) - 0.5ft (0.1m), 14s period with SW swell.

The current surf forecast for Cable Bay (Porth Trecastell) at 3PM is: 0.1m 14s primary swell from a Southwest direction and 0.1m 6s secondary swell from a Southwest direction (forecast issued at 12:00pm July 16). An open ocean swell of 0.2m 3s is not directed at the surf break. The wind direction is predicted to be glassy.

Time (BST) & DateWave HeightWave Period
Morning (16 Jul)0.5ft (0.1m)14s
Afternoon (16 Jul)0.5ft (0.1m)14s
Evening (16 Jul)0.5ft (0.1m)14s

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


Short Range Forecast

Mostly dry. Warm (max 21°C on Thu morning, min 12°C on Fri night). Wind will be generally light.

Thu
16
Friday
17
Saturday
18
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)
0.1
SW
14
0.1
SW
14
0.1
SW
14
0.1
SW
14
0.1
SW
15
0.2
SSW
7
0.2
SSW
7
0.2
SSW
7
0.2
SSW
6
0.2
SSW
6
0.2
SSW
6
0.2
SSW
6
0.1
SW
12
0.1
SW
12
0.1
SW
13
0.1
S
13
0.1
S
11
0.1
S
11
0.1
S
11
0.1
S
11
0.1
S
11
Wave Graph
Metric surfscale
Energy kJ
8
8
8
8
8
8
8
4
4
6
6
6
6
6
6
3
2
2
2
2
2
Wind (km/h)
5
S
0
S
5
NNE
15
NNE
15
NNE
15
NE
10
NNE
10
N
15
NNW
20
NNW
20
N
20
N
15
N
15
N
15
N
15
NNW
20
NNW
25
NNW
25
N
20
NNE
15
NNE
Wind State
glassy
glassy
off
off
off
off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
off
off
High Tide
11:24AM3.99m
11:39PM4.50m
12:11PM3.90m
00:25AM4.44m
12:58PM3.76m
Low Tide
6:06PM0.03m
6:39AM-0.31m
6:51PM0.12m
7:25AM-0.16m
7:35PM0.30m
part cloud
part cloud
part cloud
clear
clear
part cloud
part cloud
cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:09
5:11
5:11
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:37
9:36
9:34
 mm
Temp °C
19
21
21
21
20
20
19
18
20
20
21
20
19
16
14
12
13
14
17
18
17
Feels °C
19
21
20
18
17
17
17
17
18
15
16
16
16
14
12
10
9
10
13
15
15
  • 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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