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Cable Bay (Porth Trecastell) Surf Forecast
/ Wales – Anglesy (10 surf breaks) /
Surf Forecasts:
Cable Bay (Porth Trecastell) surfForecast / Wales – Anglesy / UK
48hr Weather and Surf, issued 6 pm Monday 01 Jun 2026 BSTForecast 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
13.5° C
(Which is 1.9°C warmer than normal for this time of year)How big are the waves at Cable Bay (Porth Trecastell) today (02 Jun):
- Morning surf: Morning surf (02 Jun, local time) - 3ft (0.9m), 6s period with SW swell.
- Afternoon surf: Afternoon surf (02 Jun, local time) - 2.5ft (0.8m), 6s period with SW swell.
- Evening surf: Evening surf (02 Jun, local time) - 2ft (0.6m), 8s period with SW swell.
The current surf forecast for Cable Bay (Porth Trecastell) at 2AM is: 1.2m 6s primary swell from a Southwest direction and 0.1m 14s secondary swell from a Southwest direction, 0.1m 10s secondary swell from a West direction (forecast issued at 06:00pm June 01). The wind direction is predicted to be cross-onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (02 Jun) | 3ft (0.9m) | 6s |
| Afternoon (02 Jun) | 2.5ft (0.8m) | 6s |
| Evening (02 Jun) | 2ft (0.6m) | 8s |
Table - waves today at Cable Bay (Porth Trecastell). (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 21mm), heaviest during Wed morning. Very mild (max 14°C on Mon afternoon, min 11°C on Tue night). Winds increasing (light winds from the SW on Mon night, fresh winds from the SSW by Wed morning). | ||||||||||||||||||||||||
Mon 1 | Tuesday 2 | Wednesday 3 | Thu 4 | |||||||||||||||||||||
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 | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SSW 6 | SSW 6 | SSW 6 | SSW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 7 | SW 8 | WSW 4 | WSW 4 | SW 7 | SSW 5 | SSW 6 | SW 7 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | WSW 5 | SW 12 | |
175 | 162 | 127 | 112 | 72 | 64 | 47 | 39 | 47 | 67 | 45 | 25 | 29 | 79 | 66 | 303 | 416 | 657 | 681 | 469 | 364 | 319 | 115 | 471 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross-on | cross-on | on | on | cross-on | cross-on | on | on | cross-on | cross-on | on | cross-on | cross-on | on | on | on | on | on | on | on | cross-on | cross-on | |
High Tide | 10:54PM3.79m | 11:17AM3.55m | 11:31PM3.75m | 11:54AM3.43m | 00:08AM3.67m | 12:31PM3.29m | ||||||||||||||||||
Low Tide | 5:25PM0.63m | 5:48AM0.50m | 6:00PM0.69m | 6:26AM0.57m | 6:37PM0.77m | 7:06AM0.67m | ||||||||||||||||||
 | |  | | | | |  |  |  |  | | | | |  | | |  |  | | | | | |
 | — | — | — | — | 4:56 | — | — | — | — | — | — | — | 4:56 | — | — | — | — | — | — | — | 4:54 | — | — | — |
 | — | 9:34 | — | — | — | — | — | — | — | 9:35 | — | — | — | — | — | — | — | 9:36 | — | — | — | — | — | 9:37 |
2 | 1 | — | — | — | 1 | 1 | — | — | — | — | — | — | — | 5 | 2 | 1 | 2 | 2 | 1 | 1 | — | 1 | 1 | |
Temp °C | 14 | 14 | 13 | 13 | 12 | 12 | 12 | 13 | 14 | 14 | 14 | 13 | 11 | 12 | 12 | 14 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 13 |
10 | 10 | 9 | 9 | 9 | 10 | 10 | 9 | 11 | 11 | 11 | 9 | 8 | 7 | 5 | 8 | 7 | 6 | 5 | 6 | 7 | 7 | 7 | 8 | |
Swell 1 Height (m) Direction Period (s) | SW 11 | SW 14 | SW 14 | SW 14 | SW 13 | SW 5 | SW 6 | SW 6 | SW 13 | WNW 4 | SW 8 | — | — | NW 4 | — | — | — | — | — | — | — | — | SW 8 | SW 12 |
 kJ | 4 | 8 | 8 | 8 | 7 | 28 | 47 | 39 | 7 | 1 | 45 | — | — | 4 | — | — | — | — | — | — | — | — | 115 | 471 |
Swell 2 Height (m) Direction Period (s) | SW 14 | SW 11 | SW 10 | W 10 | — | SSW 6 | SW 13 | SW 13 | — | — | SSW 4 | — | NW 4 | — | NW 4 | — | — | — | — | — | — | — | — | — |
| kJ | 8 | 4 | 4 | 2 | — | 16 | 7 | 7 | — | — | 1 | — | 4 | — | 1 | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | SW 13 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SW 6 | SW 6 | — | WNW 3 | SW 6 | SW 7 | WNW 4 | WSW 4 | WSW 4 | SW 7 | SSW 5 | SSW 6 | SW 7 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | WSW 5 | WNW 5 |
| kJ | 175 | 162 | 127 | 112 | 72 | 64 | — | 4 | 47 | 67 | 7 | 25 | 29 | 79 | 66 | 303 | 416 | 657 | 681 | 469 | 364 | 319 | 112 | 49 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 258 | 89 | 258 | 261 | 96 | 221 | 44 | 44 | 44 | 44 | 44 | 44 | 105 | 105 | 259 | 259 | 258 | 243 | 318 | 318 | 318 | 106 | 106 | 106 |
Best forecast wave conditions in Anglesy | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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Ocean Swells (m)- Wind Speed (km/h)
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