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 07 Aug 2026 (local time)

Forecast update in  hr  min

Today's Cable Bay (Porth Trecastell) sea temperature is
17.2° C
1.7° 

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 (07 Aug):

  • Morning surf: Morning surf (07 Aug, local time) - 1.5ft (0.4m), 4s period with SW swell.
  • Afternoon surf: Afternoon surf (07 Aug, local time) - 1.5ft (0.4m), 4s period with SW swell.
  • Evening surf: Evening surf (07 Aug, local time) - 1.5ft (0.5m), 4s period with SW swell.

The current surf forecast for Cable Bay (Porth Trecastell) at 7AM is: 0.4m 4s primary swell from a South-southwest direction and 0.1m 12s secondary swell from a Southwest direction, 0.4m 3s secondary swell from a Northwest direction (forecast issued at 12:00am August 07). The wind direction is predicted to be cross-shore.

Time (BST) & DateWave HeightWave Period
Morning (07 Aug)1.5ft (0.4m)4s
Afternoon (07 Aug)1.5ft (0.4m)4s
Evening (07 Aug)1.5ft (0.5m)4s

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


Short Range Forecast

Mostly dry. Very mild (max 19°C on Sun afternoon, min 14°C on Fri night). Wind will be generally light.

Friday
7
Saturday
8
Sunday
9
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)
0.5
SW
4
0.6
SSW
4
0.4
SSW
4
0.4
SW
4
0.1
SW
12
0.4
SW
5
0.5
SW
3
0.6
SSW
4
0.6
SSW
4
0.7
SSW
4
0.7
SSW
4
0.7
SSW
4
0.8
SSW
4
0.7
SSW
4
0.6
SW
4
0.7
SW
4
0.8
SW
4
0.7
SW
4
0.6
SW
4
0.3
SW
6
0.3
SW
6
0.3
SW
6
0.4
SW
6
0.3
SW
6
Wave Graph
Metric surfscale
Energy kJ
9
13
7
6
6
6
5
11
12
16
13
15
16
13
13
16
22
17
10
6
6
6
9
6
Wind (km/h)
10
SSW
10
WNW
10
WNW
10
WSW
15
SW
20
SSW
20
SSW
15
S
20
S
15
S
15
S
20
S
20
SSW
20
SSW
20
SSW
20
S
20
S
20
S
20
S
10
WSW
10
W
10
WSW
10
WNW
5
NNW
Wind State
cross-on
cross
cross
cross-on
on
on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
cross-on
cross-on
cross-on
cross-on
on
cross-on
cross-on
cross
glassy
High Tide
3:44AM3.33m
4:28PM3.12m
5:06AM3.20m
5:53PM3.16m
6:34AM3.25m
7:10PM3.38m
Low Tide
10:11PM1.16m
10:55AM1.10m
11:32PM1.22m
12:19PM1.13m
1:01AM1.07m
1:38PM0.97m
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
clear
part cloud
cloud
cloud
cloud
part cloud
cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:43
5:45
5:47
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:01
9:00
8:58
 mm
Temp °C
17
16
15
15
16
16
16
15
15
15
14
15
17
16
17
16
16
16
16
16
17
19
19
18
Feels °C
15
14
14
13
13
12
12
12
12
13
12
11
13
12
13
13
13
13
14
16
16
18
18
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
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