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 13 Jul 2026 (local time)

Forecast update in  hr  min

Today's Cable Bay (Porth Trecastell) sea temperature is
17.0° 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 (13 Jul):

  • Afternoon surf: Afternoon surf (13 Jul, local time) - 0.5ft (0.1m), 19s period with S swell.
  • Evening surf: Evening surf (13 Jul, local time) - 0.5ft (0.1m), 15s period with S swell.

The current surf forecast for Cable Bay (Porth Trecastell) at 11PM is: 0.1m 15s primary swell from a South direction (forecast issued at 06:00pm July 13). An open ocean swell of 0.9m 4s is not directed at the surf break. The wind direction is predicted to be offshore.

Time (BST) & DateWave HeightWave Period
Morning (13 Jul)--
Afternoon (13 Jul)0.5ft (0.1m)19s
Evening (13 Jul)0.5ft (0.1m)15s

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


Short Range Forecast

Mostly dry. Warm (max 23°C on Wed morning, min 15°C on Mon night). Wind will be generally light.

Mon
13
Tuesday
14
Wednesday
15
Thu
16
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)
0.1
S
19
0.1
S
15
0.1
S
15
0.1
S
15
0.1
S
15
0.6
NE
4
0.1
S
18
0.1
SW
18
0.1
SW
18
0.1
SW
18
0.1
S
18
0.1
SW
14
0.1
SW
14
0.1
S
13
0.1
SW
16
0.1
SW
16
0.1
SW
16
0.1
SW
16
0.1
SW
16
0.1
SW
13
0.2
SSW
6
0.2
SSW
6
0.2
SSW
6
0.1
SW
14
Wave Graph
Metric surfscale
Energy kJ
7
4
4
4
4
0
6
12
12
12
7
7
7
3
10
10
10
10
10
7
4
4
4
8
Wind (km/h)
30
NE
25
NE
30
ENE
20
ENE
20
NE
20
NE
25
NE
25
ENE
25
NE
25
NE
30
ENE
20
ENE
20
ENE
20
ENE
20
ENE
20
ENE
20
NE
25
NE
20
NE
15
ENE
5
E
10
ENE
15
ENE
20
NE
Wind State
off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
glassy
cross-off
off
off
High Tide
9:12PM4.02m
9:43AM3.93m
10:03PM4.26m
10:35AM4.00m
10:51PM4.43m
11:24AM3.99m
Low Tide
3:45PM0.34m
4:14AM0.05m
4:35PM0.16m
5:04AM-0.20m
5:21PM0.05m
5:52AM-0.33m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:07
5:07
5:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:39
9:38
9:37
9:37
 mm
Temp °C
20
19
19
18
16
15
17
19
21
20
22
21
19
18
20
23
23
22
22
23
21
21
22
23
Feels °C
15
14
14
14
12
11
12
14
16
16
18
18
17
16
18
21
19
19
18
19
20
19
19
19
  • 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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