Cable Bay (Porth Trecastell) Surf Break

Cable Bay (Porth Trecastell) 48 hour detailed Surf Forecast

Lat Long: 53.22° N 4.51° W

Issued: 6 pm 18 Jun 2026 (local time)

Forecast update in  hr  min

Today's Cable Bay (Porth Trecastell) sea temperature is
13.9° C

Slightly warmer than usual

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 (18 Jun):

  • Afternoon surf: Afternoon surf (18 Jun, local time) - 5ft (1.6m), 6s period with SSW swell.
  • Evening surf: Evening surf (18 Jun, local time) - 5.5ft (1.7m), 6s period with SSW swell.

The current surf forecast for Cable Bay (Porth Trecastell) at 10PM is: 1.5m 6s primary swell from a South-southwest direction and 0.1m 11s secondary swell from a Southwest direction (forecast issued at 06:00pm June 18). The wind direction is predicted to be cross-onshore.

Time (BST) & DateWave HeightWave Period
Morning (18 Jun)--
Afternoon (18 Jun)5ft (1.6m)6s
Evening (18 Jun)5.5ft (1.7m)6s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Moderate rain (total 11mm), heaviest on Fri morning. Very mild (max 18°C on Sun morning, min 13°C on Fri night). Winds decreasing (fresh winds from the S on Thu afternoon, calm by Sat night).

Thu
18
Friday
19
Saturday
20
Sun
21
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)
1.7
SSW
6
1.7
SSW
6
1.5
SSW
6
1.5
SSW
6
1.6
SSW
6
1.8
SSW
6
2.1
SSW
6
2.1
SSW
7
1.8
SSW
7
1.9
SSW
7
1.7
SSW
7
1.5
SSW
6
1.2
SW
7
1
SW
7
0.8
SSW
7
0.7
SW
7
0.6
SSW
7
0.6
SSW
7
0.5
SW
7
0.5
SW
7
0.4
SW
7
0.4
SW
7
0.4
SW
7
0.3
SW
7
Wave Graph
Metric surfscale
Energy kJ
181
200
164
153
184
255
372
384
297
302
261
187
131
93
62
49
31
31
23
23
12
12
12
7
Wind (km/h)
35
S
30
S
25
S
30
S
30
S
35
S
35
S
35
SSW
30
S
35
SSW
30
SSW
25
SSW
15
SW
10
WNW
10
WNW
10
WNW
5
W
5
WNW
0
NE
10
ENE
10
ENE
15
NE
20
NE
20
NE
Wind State
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
cross-on
cross-on
cross
cross-on
glassy
glassy
cross-off
off
off
off
off
High Tide
00:42AM4.24m
1:22PM3.61m
1:37AM4.08m
2:21PM3.40m
2:35AM3.87m
Low Tide
7:11PM0.29m
7:47AM-0.03m
8:01PM0.48m
8:40AM0.19m
8:52PM0.71m
9:34AM0.44m
light rain
cloud
part cloud
part cloud
part cloud
cloud
light rain
light rain
light rain
light rain
cloud
part cloud
cloud
cloud
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:50
4:50
4:50
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:47
9:47
9:47
9:49
 mm
2
2
3
3
1
Temp °C
16
16
16
16
16
16
16
15
15
15
14
14
13
13
13
14
15
16
17
17
17
16
16
18
Feels °C
11
12
13
12
12
11
10
9
11
10
10
10
11
11
11
12
14
15
16
15
14
12
12
14
Swell 1
Height (m)
Direction
Period (s)
0.1
SW
11
0.1
SW
11
0.1
SW
11
0.1
SW
11
1.2
SW
7
1
SW
7
0.8
SSW
7
0.7
SW
7
0.6
SSW
7
0.6
SSW
7
0.5
SW
7
0.5
SW
7
0.4
SW
7
0.4
SW
7
0.4
SW
7
0.3
SW
7
Energy kJ
5
5
5
5
131
93
62
49
31
31
23
23
12
12
12
7
Swell 2
Height (m)
Direction
Period (s)
0.1
S
10
0.1
SW
10
0.1
SW
10
0.1
S
10
0.2
WNW
3
0.2
WNW
3
Energy kJ
2
4
4
2
1
1
Swell 3
Height (m)
Direction
Period (s)
0.1
SW
10
0.1
S
10
0.1
S
10
0.1
S
10
Energy kJ
4
2
2
2
Wind waves
Height (m)
Direction
Period (s)
1.7
SSW
6
1.7
SSW
6
1.5
SSW
6
1.5
SSW
6
1.6
SSW
6
1.8
SSW
6
2.1
SSW
6
2.1
SSW
7
1.8
SSW
7
1.9
SSW
7
1.7
SSW
7
1.5
SSW
6
0.3
WNW
3
0.4
NW
3
0.3
NE
2
0.4
NE
3
Energy kJ
181
200
164
153
184
255
372
384
297
302
261
187
2
3
1
2
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Distance (km)
256
179
179
198
196
196
294
243
243
258
226
283
131
44
44
44
44
172
158
158
158
158
260
295
Best forecast wave conditions in Anglesy
Rating
(10 max)
Best forecast wave conditions in United Kingdom
Rating
(10 max)
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Header Global
Rating
(10 max)
6
5
5
5
6
6
6
4
4
4
4
4
5
5
4
5
9
5
8
9
9
9
8
7
  • 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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