Surf Forecasts:
How big are the waves at Cable Bay (Porth Trecastell) today (21 Oct):
- Afternoon surf: Afternoon surf (21 Oct, local time) - 8ft (2.5m), 7s period with WNW swell.
- Evening surf: Evening surf (21 Oct, local time) - 5ft (1.6m), 6s period with W swell.
The current surf forecast for Cable Bay (Porth Trecastell) at 11PM is: 1.6m 6s primary swell from a West direction and 0.1m 14s secondary swell from a Southwest direction (forecast issued at 06:00pm October 21). The wind direction is predicted to be cross-onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Oct) | - | - |
| Afternoon (21 Oct) | 8ft (2.5m) | 7s |
| Evening (21 Oct) | 5ft (1.6m) | 6s |
Table - waves today at Cable Bay (Porth Trecastell). (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 34mm), heaviest during Fri morning. Very mild (max 12°C on Sat morning, min 9°C on Wed night). Winds increasing (light winds from the WNW on Wed night, near gales from the NW by Fri morning). | |||||||||||||||||||
Wed 21 | Thursday 22 | Friday 23 | |||||||||||||||||
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 7 | WNW 7 | W 6 | SW 6 | SW 7 | SW 8 | SW 8 | SW 8 | SW 8 | SSW 8 | SSW 8 | SSW 8 | S 7 | SW 16 | NW 7 | NW 7 | NW 7 | NW 7 | NW 7 |
Wave Graph  | |||||||||||||||||||
 kJ | 662 | 398 | 181 | 74 | 65 | 64 | 100 | 112 | 98 | 103 | 82 | 52 | 103 | 196 | 823 | 899 | 799 | 859 | 681 |
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-off | cross-on | on | cross-on | cross-off | cross-off | cross-off | off | cross | cross | cross | cross | cross | cross |
High Tide | 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 | ||||||||||||||
 |  | |  |  | |  | | | | |  | |  |  | | |  | | |
 | — | — | — | — | — | 7:56 | — | — | — | — | — | — | — | 7:58 | — | — | — | — | — |
 | 6:09 | — | — | — | — | — | — | — | 6:07 | — | — | — | — | — | — | — | 6:05 | — | — |
mm | 2 | — | — | — | 1 | 2 | — | — | — | — | — | 4 | 2 | 6 | 9 | 2 | 1 | — | — |
Temp °C | 11 | 11 | 10 | 10 | 10 | 9 | 10 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 10 | 11 | 10 |
Feels °C | 2 | 3 | 5 | 7 | 7 | 3 | 5 | 6 | 6 | 6 | 5 | 4 | 6 | 8 | -3 | -4 | -2 | 0 | 0 |
Swell 1 Height (m) Direction Period (s) | SW 14 | — | SW 14 | SW 6 | SW 7 | SW 8 | SW 8 | NW 4 | SW 8 | SSW 8 | SSW 8 | SSW 8 | S 7 | SSW 8 | SW 12 | SW 11 | SW 10 | SW 10 | SW 10 |
| kJ | 7 | — | 8 | 74 | 65 | 64 | 100 | 3 | 98 | 103 | 82 | 52 | 103 | 161 | 635 | 255 | 82 | 48 | 34 |
Swell 2 Height (m) Direction Period (s) | — | — | — | NW 5 | WNW 4 | — | NNW 4 | NW 4 | NW 4 | N 4 | — | S 5 | NE 6 | SW 16 | WSW 14 | — | SW 8 | SW 13 | — |
| kJ | — | — | — | 45 | 4 | — | 5 | 3 | 2 | 1 | — | 7 | 5 | 196 | 183 | — | 2 | 28 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | NW 5 | — | — | — | — | — | — | — | — | ENE 6 | — | — | — | — | — |
| kJ | — | — | — | — | 4 | — | — | — | — | — | — | — | — | 3 | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | WNW 7 | WNW 7 | W 6 | — | NW 5 | NW 4 | WNW 3 | SW 8 | — | SE 3 | E 3 | ESE 4 | ENE 4 | NW 4 | NW 7 | NW 7 | NW 7 | NW 7 | NW 7 |
| kJ | 662 | 398 | 181 | — | 17 | 12 | 4 | 112 | — | 4 | 5 | 30 | 1 | 24 | 823 | 899 | 799 | 859 | 681 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 279 | 283 | 44 | 44 | 44 | 167 | 44 | 167 | 89 | 49 | 256 | 212 | 0 | 40 | 277 | 272 | 299 | 596 | 283 |
Best forecast wave conditions in Anglesy | |||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||
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