Surf Forecasts:
How big are the waves at Cable Bay (Porth Trecastell) today (20 Aug):
- Afternoon surf: Afternoon surf (20 Aug, local time) - 1.5ft (0.4m), 6s period with SW swell.
- Evening surf: Evening surf (20 Aug, local time) - 1ft (0.3m), 6s period with SW swell.
The current surf forecast for Cable Bay (Porth Trecastell) at 11PM is: 0.1m 14s primary swell from a Southwest direction and 0.2m 6s secondary swell from a South-southwest direction (forecast issued at 06:00pm August 20). An open ocean swell of 1.0m 5s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Aug) | - | - |
| Afternoon (20 Aug) | 1.5ft (0.4m) | 6s |
| Evening (20 Aug) | 1ft (0.3m) | 6s |
Table - waves today at Cable Bay (Porth Trecastell). (Swell directed towards the surf break)
Short Range ForecastLight rain (total 3mm), mostly falling on Thu night. Very mild (max 17°C on Fri afternoon, min 12°C on Fri night). Wind will be generally light. | |||||||||||||||||||
Thu 20 | Friday 21 | Saturday 22 | |||||||||||||||||
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 6 | SW 6 | SW 6 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 |
Wave Graph  | |||||||||||||||||||
 kJ | 10 | 8 | 8 | 8 | 8 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 10 | 10 | 8 | 8 | 8 | 8 | 8 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 3:26PM3.00m | 4:05AM2.90m | 4:46PM2.83m | 5:38AM2.76m | 6:19PM2.84m | ||||||||||||||
Low Tide | 10:08PM1.38m | 10:45AM1.54m | 11:34PM1.55m | 12:20PM1.61m | |||||||||||||||
 | |  |  | |  |  | | | | | | | |  | | | | | |
 | — | — | — | — | 6:07 | — | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — |
 | — | 8:36 | — | — | — | — | — | — | — | 8:32 | — | — | — | — | — | — | — | 8:30 | — |
mm | — | — | — | — | — | 1 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 15 | 14 | 13 | 13 | 13 | 14 | 15 | 17 | 16 | 14 | 13 | 13 | 12 | 13 | 14 | 14 | 14 | 14 |
Feels °C | 11 | 10 | 10 | 9 | 9 | 9 | 11 | 12 | 13 | 12 | 11 | 10 | 11 | 10 | 10 | 11 | 10 | 11 | 12 |
Swell 1 Height (m) Direction Period (s) | SW 6 | SW 6 | SW 6 | SSW 6 | SW 6 | SW 6 | NNW 5 | SW 6 | W 4 | — | SW 13 | SW 13 | SW 13 | SW 13 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 |
| kJ | 10 | 6 | 6 | 3 | 1 | 1 | 39 | 1 | 1 | — | 7 | 7 | 7 | 7 | 8 | 8 | 8 | 8 | 8 |
Swell 2 Height (m) Direction Period (s) | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 6 | SW 13 | SW 6 | SW 13 | SW 5 | S 5 | SW 16 | SW 16 | — | S 12 | — | S 12 | S 12 |
| kJ | 8 | 8 | 8 | 8 | 8 | 7 | 1 | 7 | 1 | 7 | 1 | 1 | 10 | 10 | — | 3 | — | 3 | 3 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | SW 14 | SW 13 | SW 13 | SW 6 | — | — | — | — | — | — | — | — | W 12 |
| kJ | — | — | — | — | — | — | 7 | 7 | 7 | 1 | — | — | — | — | — | — | — | — | 3 |
Wind waves Height (m) Direction Period (s) | N 5 | N 5 | N 5 | NNW 5 | NNW 6 | NNW 5 | — | NNW 4 | NNW 4 | N 4 | N 4 | NNW 5 | NNW 5 | NNW 5 | NNW 5 | NNW 5 | NNW 5 | NNW 5 | N 4 |
| kJ | 73 | 48 | 44 | 66 | 81 | 78 | — | 18 | 10 | 7 | 15 | 31 | 35 | 35 | 24 | 25 | 25 | 12 | 10 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 830 | 221 | 185 | 185 | 172 | 172 | 185 | 329 | 284 | 187 | 178 | 221 | 221 | 180 | 172 | 211 | 284 | 316 | 211 |
Best forecast wave conditions in Anglesy | |||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||
Header Global | |||||||||||||||||||
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