Surf Forecasts:
How big are the waves at Cable Bay (Porth Trecastell) today (20 Sep):
- Morning surf: Morning surf (20 Sep, local time) - 4ft (1.2m), 5s period with WNW swell.
- Afternoon surf: Afternoon surf (20 Sep, local time) - 3ft (0.9m), 5s period with NW swell.
- Evening surf: Evening surf (20 Sep, local time) - 1.5ft (0.4m), 6s period with SSW swell.
The current surf forecast for Cable Bay (Porth Trecastell) at 6AM is: 1.3m 5s primary swell from a West-northwest direction and 0.8m 6s secondary swell from a Southwest direction, 0.1m 14s secondary swell from a South direction (forecast issued at 12:00am September 20). The wind direction is predicted to be cross-onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Sep) | 4ft (1.2m) | 5s |
| Afternoon (20 Sep) | 3ft (0.9m) | 5s |
| Evening (20 Sep) | 1.5ft (0.4m) | 6s |
Table - waves today at Cable Bay (Porth Trecastell). (Swell directed towards the surf break)
Short Range ForecastMostly dry. Very mild (max 17°C on Mon afternoon, min 13°C on Sat night). Mainly fresh winds. | ||||||||||||||||||||||||
Sunday 20 | Monday 21 | Tuesday 22 | ||||||||||||||||||||||
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 | 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 5 | SW 7 | WNW 5 | NW 5 | NW 5 | NW 5 | NW 5 | SSW 6 | SSW 4 | SSW 4 | SSW 4 | SSW 4 | SW 4 | SSW 4 | SSW 4 | SSW 4 | SSW 4 | SSW 4 | SW 4 | S 12 | S 12 | S 12 | S 12 | S 12 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 97 | 72 | 80 | 66 | 42 | 24 | 12 | 13 | 9 | 20 | 28 | 32 | 19 | 16 | 11 | 13 | 15 | 10 | 7 | 5 | 4 | 6 | 4 | 4 |
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-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 | cross-on | on | cross-on | cross-on | cross-on |
High Tide | 5:10AM2.63m | 5:52PM2.79m | 6:48AM2.73m | 7:09PM3.00m | 7:45AM2.94m | 7:57PM3.28m | ||||||||||||||||||
Low Tide | 10:46PM1.58m | 11:27AM1.71m | 00:33AM1.54m | 1:01PM1.56m | 1:44AM1.28m | 1:57PM1.28m | ||||||||||||||||||
 |  |  |  | |  | | | | |  | | | | | | | | | | | | | | |
 | — | 6:58 | — | — | — | — | — | — | — | — | 7:01 | — | — | — | — | — | — | — | 7:01 | — | — | — | — | — |
 | — | — | — | — | — | — | 7:22 | — | — | — | — | — | — | — | 7:20 | — | — | — | — | — | — | — | 7:17 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 14 | 14 | 16 | 17 | 16 | 16 | 16 | 16 | 15 | 15 | 16 | 16 | 16 | 16 |
Feels °C | 8 | 8 | 7 | 8 | 9 | 10 | 10 | 10 | 9 | 8 | 9 | 10 | 13 | 15 | 14 | 14 | 15 | 15 | 13 | 13 | 14 | 14 | 15 | 15 |
Swell 1 Height (m) Direction Period (s) | — | SW 7 | SW 6 | SW 6 | SW 6 | NW 5 | NW 5 | NW 4 | NNW 4 | — | — | S 13 | S 13 | S 13 | S 13 | S 13 | — | — | — | — | — | S 12 | S 12 | S 12 |
| kJ | — | 63 | 40 | 31 | 18 | 24 | 12 | 4 | 2 | — | — | 3 | 3 | 3 | 3 | 3 | — | — | — | — | — | 3 | 3 | 3 |
Swell 2 Height (m) Direction Period (s) | — | S 14 | S 14 | S 14 | S 14 | SW 6 | SW 6 | — | — | — | — | — | — | — | — | — | — | — | — | S 12 | S 12 | SW 12 | W 5 | — |
| kJ | — | 4 | 4 | 4 | 4 | 18 | 9 | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 3 | 6 | 1 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | S 14 | S 14 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | 4 | 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | WSW 5 | WNW 5 | WNW 5 | NW 5 | NW 5 | — | — | SSW 6 | SSW 4 | SSW 4 | SSW 4 | SSW 4 | SW 4 | SSW 4 | SSW 4 | SSW 4 | SSW 4 | SSW 4 | SW 4 | SSW 3 | SSW 3 | SSW 3 | SSW 3 | SSW 3 |
| kJ | 97 | 72 | 80 | 66 | 42 | — | — | 13 | 9 | 20 | 28 | 32 | 19 | 16 | 11 | 13 | 15 | 10 | 7 | 5 | 4 | 4 | 4 | 4 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 262 | 173 | 185 | 181 | 185 | 185 | 158 | 172 | 172 | 172 | 180 | 180 | 233 | 256 | 256 | 256 | 256 | 256 | 256 | 178 | 228 | 185 | 157 | 150 |
Best forecast wave conditions in Anglesy | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
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