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Surf Forecasts:

Cable Bay (Porth Trecastell) surfForecast / Wales – Anglesy / UK

information circle48hr Weather and Surf, issued 11 am Sunday 15 Feb 2026 GMT
Forecast update in hr  min  s Forecast update imminent
Cable Bay (Porth Trecastell) surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Cable Bay (Porth Trecastell) sea temperature is
8.0° C
 (Which is normal for this time of year)

How big are the waves at Cable Bay (Porth Trecastell) today?

The current surf forecast for Cable Bay (Porth Trecastell) at 5PM is: 1.5m 5s primary swell from a West-southwest direction and 0.3m 10s secondary swell from a Southwest direction (forecast issued at 11:00am February 15). The wind direction is predicted to be cross-onshore.

Time (GMT) & DateWave HeightWave Period
Morning (15 Feb)6ft (1.8m)7s
Afternoon (15 Feb)4.5ft (1.4m)6s
Evening (15 Feb)6ft (1.9m)6s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Sunday
15
Monday
16
Tuesday
17
Wednesday
18
9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.8
SSW
1.6
SSW
1.4
SW
1.5
WSW
1.9
WSW
2.1
WSW
2.3
WSW
2.4
W
2.5
W
2.5
W
1.8
WNW
1.1
SW
0.9
SW
0.9
SW
0.8
SW
0.6
SW
0.6
SW
0.6
SW
0.6
SW
0.5
SW
0.5
SW
0.5
SW
1.1
SSE
1.2
SSE
Period(s) (?)766566666667888888888856
Wave
Graph
(?)Metric surfscale
Energy kJ (?)33421511910720729038445550351924613011510082545455553331316994
Wind
(km/h)
30
SSW
25
SSW
35
W
35
W
35
WSW
35
W
40
W
40
W
40
WSW
40
W
30
WNW
30
NNW
30
NNW
30
NNW
35
NNW
25
NNE
15
NNE
20
NE
15
ENE
20
E
15
ESE
15
ESE
20
ESE
20
ESE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
oncross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		offoffoffcross-
off		cross-
off		cross-
off		cross-
off		cross-
off
High Tide
/ height (m)
8:21AM
3.56
8:40PM
3.42
8:52AM
3.83
9:11PM
3.62
9:20AM
4.08
9:39PM
3.78
Low Tide
/ height (m)
2:54PM
0.64
3:03AM
0.60
3:29PM
0.35
3:37AM
0.37
4:03PM
0.11
4:11AM
0.21
Sunday
15
Monday
16
Tuesday
17
Wednesday
18
Sunrise7:37-------7:35-------7:31-------
Sunset--5:28-------5:30-------5:31-----
light rain
cloud
thunderstorm
clear
light rain
light rain
light rain
cloud
cloud
light rain
rain showers
light rain
clear
clear
clear
part cloud
part cloud
cloud
cloud
cloud
cloud
cloud
cloud
part cloud
Rain (mm)
1-2-111--121------------
Temp. °C889877677687555544322222
Feels °C (?)1220-1-2-3-2-2-41-1-3-4-4-2-2-3-3-5-3-4-4-5
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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View detailed surf forecast for Cable Bay (Porth Trecastell) at:
surf-forecast.com

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