Surf Forecasts:
How big are the waves at Cable Bay (Porth Trecastell) today (18 Aug):
- Morning surf: Morning surf (18 Aug, local time) - 2ft (0.6m), 6s period with SW swell.
- Afternoon surf: Afternoon surf (18 Aug, local time) - 2ft (0.6m), 6s period with SW swell.
- Evening surf: Evening surf (18 Aug, local time) - 2.5ft (0.7m), 3s period with W swell.
The current surf forecast for Cable Bay (Porth Trecastell) at 10AM is: 0.6m 6s primary swell from a Southwest direction and 0.8m 4s secondary swell from a West-northwest direction (forecast issued at 06:00am August 18). The wind direction is predicted to be cross-onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Aug) | 2ft (0.6m) | 6s |
| Afternoon (18 Aug) | 2ft (0.6m) | 6s |
| Evening (18 Aug) | 2.5ft (0.7m) | 3s |
Table - waves today at Cable Bay (Porth Trecastell). (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 13mm), heaviest on Thu morning. Very mild (max 17°C on Tue afternoon, min 12°C on Thu night). Wind will be generally light. | |||||||||||||||||||||||
Tuesday 18 | Wednesday 19 | Thursday 20 | |||||||||||||||||||||
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 | |
Swell Height Map |  |  |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | SW 5 | SW 5 | SW 6 | W 4 | SW 6 | SW 6 | W 3 | WSW 4 | WSW 4 | WSW 4 | WSW 4 | WSW 4 | SW 4 | SW 5 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SSW 7 | SW 14 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 42 | 24 | 32 | 40 | 21 | 16 | 11 | 21 | 35 | 32 | 25 | 21 | 20 | 61 | 67 | 47 | 45 | 29 | 16 | 9 | 8 | 8 | 8 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross-on | cross-on | on | on | cross-on | on | cross-on | on | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | cross | cross-off | off | cross-off | cross-off | cross-off |
High Tide | 1:44PM3.51m | 2:05AM3.58m | 2:29PM3.25m | 2:56AM3.21m | 3:26PM3.00m | ||||||||||||||||||
Low Tide | 8:13AM0.53m | 8:25PM0.77m | 8:54AM0.92m | 9:10PM1.10m | 9:40AM1.27m | ||||||||||||||||||
 |  |  | | | |  | |  | |  | | | | | | |  |  | | | |  | |
 | 6:01 | — | — | — | — | — | — | — | 6:03 | — | — | — | — | — | — | — | 6:05 | — | — | — | — | — | — |
 | — | — | — | — | — | 8:39 | — | — | — | — | — | — | — | 8:37 | — | — | — | — | — | — | — | 8:36 | — |
mm | — | — | — | — | — | — | 1 | 1 | 1 | — | — | — | — | — | 1 | 1 | 1 | 2 | 4 | 1 | — | — | — |
Temp °C | 18 | 16 | 16 | 16 | 17 | 17 | 15 | 15 | 14 | 14 | 15 | 16 | 16 | 16 | 15 | 15 | 14 | 14 | 15 | 15 | 16 | 15 | 14 |
Feels °C | 16 | 13 | 12 | 12 | 14 | 15 | 11 | 12 | 10 | 10 | 11 | 12 | 11 | 11 | 13 | 13 | 11 | 11 | 12 | 10 | 11 | 11 | 11 |
Swell 1 Height (m) Direction Period (s) | — | SW 5 | SW 6 | — | NW 4 | NW 4 | — | — | S 17 | SW 17 | SW 16 | WNW 4 | NW 4 | SW 15 | SW 16 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SSW 7 | SSW 6 |
| kJ | — | 24 | 32 | — | 9 | 5 | — | — | 6 | 11 | 10 | 2 | 1 | 9 | 10 | 47 | 45 | 29 | 16 | 9 | 6 | 4 | 4 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | SW 16 | S 15 | — | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 10 | 5 | — | 10 | 10 | 9 | 9 | 8 | 8 | 8 | 8 | 8 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SW 5 | WNW 4 | WNW 4 | W 4 | SW 6 | SW 6 | W 3 | WSW 4 | WSW 4 | WSW 4 | WSW 4 | WSW 4 | SW 4 | SW 5 | SW 6 | WNW 3 | WNW 4 | WNW 4 | NNW 4 | N 6 | N 6 | N 5 | N 4 |
| kJ | 42 | 13 | 24 | 40 | 21 | 16 | 11 | 21 | 35 | 32 | 25 | 21 | 20 | 61 | 67 | 4 | 13 | 24 | 39 | 180 | 110 | 37 | 24 |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 168 | 173 | 44 | 381 | 381 | 381 | 261 | 185 | 185 | 185 | 185 | 261 | 256 | 258 | 244 | 44 | 167 | 173 | 173 | 173 | 173 | 185 | 172 |
Best forecast wave conditions in Anglesy | |||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||||
Header Global | |||||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Cable Bay (Porth Trecastell) surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Nearest