Surf Forecasts:
How big are the waves at Cable Bay (Porth Trecastell) today (31 Aug):
- Morning surf: Morning surf (31 Aug, local time) - 4.5ft (1.3m), 5s period with WNW swell.
- Afternoon surf: Afternoon surf (31 Aug, local time) - 2ft (0.6m), 8s period with SW swell.
- Evening surf: Evening surf (31 Aug, local time) - 1.5ft (0.5m), 8s period with SW swell.
The current surf forecast for Cable Bay (Porth Trecastell) at 7PM is: 0.6m 8s primary swell from a South-southwest direction and 0.5m 4s secondary swell from a West direction (forecast issued at 12:00pm August 31). An open ocean swell of 0.3m 5s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 Aug) | 4.5ft (1.3m) | 5s |
| Afternoon (31 Aug) | 2ft (0.6m) | 8s |
| Evening (31 Aug) | 1.5ft (0.5m) | 8s |
Table - waves today at Cable Bay (Porth Trecastell). (Swell directed towards the surf break)
Short Range ForecastLight rain (total 6mm), mostly falling on Tue night. Very mild (max 19°C on Wed night, min 15°C on Mon morning). Winds increasing (light winds from the W on Mon night, fresh winds from the S by Wed morning). | |||||||||||||||||||||
Mon 31 | Tuesday 1 | Wednesday 2 | |||||||||||||||||||
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) | WNW 5 | WNW 5 | SW 8 | SSW 8 | SW 7 | SSW 7 | SW 7 | SW 7 | SW 4 | SW 4 | SSW 5 | SW 5 | SW 5 | SW 5 | SW 5 | SW 5 | SSW 4 | SSW 6 | SSW 6 | SSW 6 | SSW 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 92 | 67 | 50 | 41 | 27 | 21 | 13 | 38 | 17 | 26 | 59 | 82 | 57 | 39 | 25 | 22 | 37 | 204 | 241 | 231 | 181 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-on | cross-on | cross-on | cross-on | on | on | on | on | on | on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 11:49AM3.93m | 00:03AM4.23m | 12:23PM3.87m | 00:40AM4.07m | 1:01PM3.73m | ||||||||||||||||
Low Tide | 6:37PM0.27m | 7:03AM0.19m | 7:16PM0.42m | 7:43AM0.43m | 7:59PM0.63m | ||||||||||||||||
 |  | | |  |  | |  | | | |  |  |  | | | | | | | | |
 | 6:24 | — | — | — | — | — | 6:26 | — | — | — | — | — | — | — | 6:28 | — | — | — | — | — | — |
 | — | — | — | 8:09 | — | — | — | — | — | — | — | 8:07 | — | — | — | — | — | — | — | 8:06 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | 1 | 2 | — | — | — | 1 | 2 | — | — | — |
Temp °C | 15 | 15 | 16 | 17 | 16 | 16 | 15 | 15 | 15 | 15 | 16 | 17 | 15 | 15 | 15 | 16 | 15 | 16 | 17 | 17 | 17 |
Feels °C | 10 | 10 | 12 | 14 | 13 | 13 | 12 | 11 | 11 | 10 | 11 | 13 | 13 | 14 | 14 | 14 | 11 | 11 | 13 | 13 | 14 |
Swell 1 Height (m) Direction Period (s) | SW 8 | SW 8 | SW 8 | SSW 8 | SW 7 | SSW 7 | SW 7 | NW 4 | — | WNW 4 | — | — | — | — | WNW 3 | — | S 16 | — | SW 16 | — | SW 15 |
| kJ | 62 | 62 | 50 | 41 | 27 | 21 | 13 | 3 | — | 1 | — | — | — | — | 1 | — | 5 | — | 10 | — | 9 |
Swell 2 Height (m) Direction Period (s) | — | — | N 5 | NNW 5 | NNW 4 | NNW 4 | NNW 4 | N 4 | — | — | — | — | — | S 16 | — | — | — | — | — | — | — |
| kJ | — | — | 4 | 4 | 4 | 4 | 4 | 2 | — | — | — | — | — | 5 | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | NW 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | WNW 5 | WNW 5 | WNW 4 | W 4 | WNW 4 | W 3 | W 3 | SW 7 | SW 4 | SW 4 | SSW 5 | SW 5 | SW 5 | SW 5 | SW 5 | SW 5 | SSW 4 | SSW 6 | SSW 6 | SSW 6 | SSW 6 |
| kJ | 92 | 67 | 22 | 8 | 4 | 3 | 6 | 38 | 17 | 26 | 59 | 82 | 57 | 39 | 25 | 22 | 37 | 204 | 241 | 231 | 181 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 541 | 283 | 44 | 44 | 44 | 44 | 173 | 187 | 284 | 299 | 333 | 244 | 293 | 256 | 256 | 258 | 261 | 296 | 298 | 285 | 297 |
Best forecast wave conditions in Anglesy | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
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