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 22 Oct 2026 (local time)

Forecast update in  hr  min

Today's Cable Bay (Porth Trecastell) sea temperature is
15.0°C
1.6° 

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 (23 Oct):

  • Afternoon surf: Afternoon surf (23 Oct, local time) - 3ft (0.9m), 8s period with SW swell.
  • Evening surf: Evening surf (23 Oct, local time) - 2.5ft (0.7m), 8s period with SW swell.

The current surf forecast for Cable Bay (Porth Trecastell) at 12AM is: 0.6m 8s primary swell from a South-southwest direction and 0.5m 5s secondary swell from a South direction (forecast issued at 06:00pm October 22). An open ocean swell of 1.2m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (BST) & DateWave HeightWave Period
Morning (23 Oct)--
Afternoon (23 Oct)3ft (0.9m)8s
Evening (23 Oct)2.5ft (0.7m)8s

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


Short Range Forecast

Heavy rain (total 35mm), heaviest during Sat afternoon. Very mild (max 16°C on Sat afternoon, min 8°C on Fri morning). Winds increasing (light winds from the S on Thu night, gales from the WSW by Sat night).

Thu
22
Friday
23
Saturday
24
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
1
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
Wave
Height (m)
Direction
Period (s)
0.9
SW
8
0.8
SSW
8
0.7
SW
8
0.6
SSW
8
0.7
SSW
7
1
SSW
8
3
NW
7
3.5
NW
8
4
NW
8
3.5
NW
8
2.5
NW
7
2.1
NW
7
1.3
W
5
1.3
WSW
5
1.9
SW
6
4
SSW
8
4
SW
9
4
SW
10
4.5
WSW
8
Wave Graph
Metric surfscale
Energy kJ
98
84
65
40
48
122
885
1566
1899
1367
763
408
86
77
257
1816
2314
3153
2564
Wind (km/h)
15
S
15
E
25
E
35
E
15
E
10
S
60
NNW
60
NW
60
NW
55
NW
40
NW
35
WNW
25
W
30
SW
45
SSW
60
S
55
SW
50
WSW
60
WSW
Wind State
cross-on
cross-off
cross-off
cross-off
cross-off
cross-on
cross-off
cross
cross
cross
cross
cross-on
cross-on
on
cross-on
cross-on
on
cross-on
cross-on
High Tide
7:46PM3.49m
8:15AM3.41m
8:18PM3.74m
8:45AM3.68m
8:50PM3.99m
Low Tide
1:53PM1.11m
2:22AM0.68m
2:35PM0.82m
3:00AM0.39m
3:15PM0.53m
clear
cloud
cloud
light rain
rain showers
rain showers
light rain
light rain
light rain
part cloud
part cloud
cloud
cloud
cloud
light rain
mod rain
mod rain
light rain
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
—
—
—
—
—
7:58
—
—
—
—
—
—
—
8:00
—
—
—
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:07
—
—
—
—
—
—
—
6:05
—
—
—
—
—
—
—
6:02
—
—
 mm
—
—
—
5
2
1
2
3
2
—
—
—
—
—
1
7
8
1
—
Temp °C
11
10
10
10
12
11
8
9
10
10
10
10
11
11
11
12
16
13
10
Feels °C
7
6
4
3
9
9
-5
-4
-3
-2
0
2
5
4
2
1
7
3
-3
  • 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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