Surf Forecasts:
How big are the waves at Cable Bay (Porth Trecastell) today (12 Sep):
- Afternoon surf: Afternoon surf (12 Sep, local time) - 6.5ft (2.0m), 7s period with SW swell.
- Evening surf: Evening surf (12 Sep, local time) - 5ft (1.6m), 7s period with SW swell.
The current surf forecast for Cable Bay (Porth Trecastell) at 11PM is: 1.1m 7s primary swell from a Southwest direction and 0.4m 4s secondary swell from a Northwest direction (forecast issued at 06:00pm September 12). The wind direction is predicted to be glassy.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 Sep) | - | - |
| Afternoon (12 Sep) | 6.5ft (2.0m) | 7s |
| Evening (12 Sep) | 5ft (1.6m) | 7s |
Table - waves today at Cable Bay (Porth Trecastell). (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 19mm), heaviest on Mon night. Very mild (max 18°C on Sat afternoon, min 14°C on Mon night). Winds increasing (calm on Sat night, fresh winds from the SSW by Mon afternoon). | |||||||||||||||||||
Sat 12 | Sunday 13 | Monday 14 | |||||||||||||||||
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 7 | SW 7 | SW 7 | SSW 7 | SSW 6 | SW 6 | SSW 6 | SW 6 | SW 6 | SSW 6 | SW 6 | SSW 6 | SSW 4 | SSW 4 | SSW 4 | SSW 5 | SSW 5 | SSW 6 | SSW 6 |
Wave Graph  | |||||||||||||||||||
 kJ | 314 | 198 | 131 | 76 | 52 | 39 | 25 | 17 | 17 | 14 | 9 | 18 | 8 | 11 | 30 | 48 | 86 | 209 | 223 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | glassy | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 10:54PM4.52m | 11:16AM4.11m | 11:30PM4.39m | 11:50AM4.02m | |||||||||||||||
Low Tide | 5:22PM-0.06m | 5:48AM-0.24m | 5:59PM0.01m | 6:23AM-0.01m | 6:35PM0.19m | ||||||||||||||
 | |  | |  | |  | | | | | | | | | |  | |  | |
 | — | — | — | — | 6:47 | — | — | — | — | — | — | — | 6:48 | — | — | — | — | — | — |
 | — | 7:42 | — | — | — | — | — | — | — | 7:38 | — | — | — | — | — | — | — | 7:37 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 |
Temp °C | 18 | 18 | 18 | 17 | 17 | 16 | 16 | 17 | 17 | 17 | 16 | 16 | 16 | 17 | 16 | 16 | 17 | 17 | 17 |
Feels °C | 14 | 16 | 18 | 18 | 17 | 16 | 16 | 17 | 17 | 17 | 15 | 14 | 14 | 16 | 13 | 12 | 13 | 13 | 12 |
Swell 1 Height (m) Direction Period (s) | — | SW 7 | SW 7 | SSW 7 | SSW 6 | SW 6 | SSW 6 | SW 6 | SW 6 | SSW 6 | SW 6 | — | — | SSW 6 | — | — | — | — | — |
| kJ | — | 198 | 131 | 76 | 52 | 39 | 25 | 17 | 17 | 14 | 9 | — | — | 3 | — | — | — | — | — |
Swell 2 Height (m) Direction Period (s) | — | — | NW 4 | NW 4 | — | — | — | — | — | — | S 13 | — | — | — | — | — | — | — | — |
| kJ | — | — | 4 | 2 | — | — | — | — | — | — | 3 | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | NW 4 | — | — | — | — | S 13 | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | 1 | — | — | — | — | 3 | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SW 7 | — | — | — | — | — | — | — | — | — | — | SSW 6 | SSW 4 | SSW 4 | SSW 4 | SSW 5 | SSW 5 | SSW 6 | SSW 6 |
| kJ | 314 | — | — | — | — | — | — | — | — | — | — | 18 | 8 | 11 | 30 | 48 | 86 | 209 | 223 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 333 | 96 | 2 | 0 | 173 | 44 | 44 | 167 | 173 | 150 | 226 | 256 | 256 | 256 | 256 | 256 | 256 | 256 | 256 |
Best forecast wave conditions in Anglesy | |||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||
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‘Porth Neigwl: Choppy waves hadn't tidied much (from what I could see in the dark.’
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