Surf Forecasts:
How big are the waves at Cable Bay (Porth Trecastell) today (21 Oct):
- Morning surf: Morning surf (21 Oct, local time) - 7ft (2.2m), 6s period with WSW swell.
- Afternoon surf: Afternoon surf (21 Oct, local time) - 10ft (3.0m), 7s period with WNW swell.
- Evening surf: Evening surf (21 Oct, local time) - 6ft (1.8m), 6s period with W swell.
The current surf forecast for Cable Bay (Porth Trecastell) at 5PM is: 2.5m 7s primary swell from a West-northwest direction and 0.1m 14s secondary swell from a Southwest direction (forecast issued at 12:00pm October 21). The wind direction is predicted to be cross-onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Oct) | 7ft (2.2m) | 6s |
| Afternoon (21 Oct) | 10ft (3.0m) | 7s |
| Evening (21 Oct) | 6ft (1.8m) | 6s |
Table - waves today at Cable Bay (Porth Trecastell). (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 26mm), heaviest during Thu night. Very mild (max 11°C on Wed afternoon, min 8°C on Fri morning). Winds increasing (light winds from the SSW on Thu afternoon, near gales from the NW by Fri morning). | |||||||||||||||||||||
Wed 21 | Thursday 22 | Friday 23 | |||||||||||||||||||
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) | WSW 6 | W 7 | WNW 7 | WNW 7 | W 6 | SW 6 | SW 7 | SW 7 | WSW 8 | SW 8 | SW 8 | SSW 8 | SW 8 | SSW 8 | SSW 7 | SSW 8 | NW 7 | NW 7 | NW 7 | NW 7 | WNW 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 360 | 898 | 769 | 469 | 247 | 74 | 64 | 48 | 133 | 129 | 95 | 82 | 64 | 54 | 69 | 93 | 595 | 635 | 625 | 516 | 451 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross-on | on | cross-on | cross-off | cross-off | cross-off | off | cross | cross | cross | cross | cross | cross |
High Tide | 7:05AM2.89m | 7:09PM3.23m | 7:44AM3.14m | 7:46PM3.49m | 8:15AM3.41m | 8:18PM3.74m | |||||||||||||||
Low Tide | 1:04PM1.38m | 1:41AM0.99m | 1:53PM1.11m | 2:22AM0.68m | 2:35PM0.82m | ||||||||||||||||
 | | |  |  |  |  | |  | |  | | | | | | | | | |  | |
 | 7:54 | — | — | — | — | — | — | 7:56 | — | — | — | — | — | — | — | 7:58 | — | — | — | — | — |
 | — | — | 6:09 | — | — | — | — | — | — | — | 6:07 | — | — | — | — | — | — | — | 6:05 | — | — |
mm | 1 | 1 | 2 | — | — | — | 2 | — | — | — | — | — | — | 3 | 3 | 5 | 5 | 2 | 1 | — | 1 |
Temp °C | 9 | 9 | 10 | 11 | 10 | 10 | 9 | 9 | 10 | 11 | 11 | 10 | 9 | 10 | 10 | 10 | 8 | 9 | 10 | 11 | 10 |
Feels °C | -1 | -1 | 0 | 2 | 4 | 5 | 4 | 4 | 5 | 6 | 7 | 6 | 4 | 5 | 6 | 7 | -4 | -4 | -3 | 0 | -1 |
Swell 1 Height (m) Direction Period (s) | — | — | WSW 14 | SW 14 | SW 14 | SW 6 | SW 7 | SW 7 | — | NNW 4 | NW 4 | SSW 8 | SW 8 | SSW 8 | SSW 7 | SSW 8 | SW 10 | SW 11 | SW 11 | SW 10 | SW 10 |
| kJ | — | — | 18 | 7 | 8 | 74 | 64 | 48 | — | 7 | 4 | 82 | 64 | 54 | 69 | 93 | 248 | 325 | 137 | 48 | 34 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | NNW 4 | NNW 4 | WNW 4 | — | — | — | SW 20 | SW 16 | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | 7 | 2 | 1 | — | — | — | 15 | 151 | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | NNW 4 | — | — | — | S 14 | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 2 | — | — | — | 4 | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | WSW 6 | W 7 | WNW 7 | WNW 7 | W 6 | NW 5 | NW 5 | NW 4 | WSW 8 | SW 8 | SW 8 | — | ESE 3 | ESE 3 | ENE 4 | N 4 | NW 7 | NW 7 | NW 7 | NW 7 | WNW 6 |
| kJ | 360 | 898 | 769 | 469 | 247 | 56 | 31 | 21 | 133 | 129 | 95 | — | 2 | 13 | 11 | 56 | 595 | 635 | 625 | 516 | 451 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 256 | 261 | 277 | 285 | 302 | 44 | 167 | 44 | 44 | 167 | 89 | 5 | 256 | 212 | 0 | 105 | 279 | 272 | 286 | 596 | 596 |
Best forecast wave conditions in Anglesy | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
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