Surf Forecasts:
How big are the waves at Trearddur Bay (Holy Island) today (12 Oct):
- Afternoon surf: Afternoon surf (12 Oct, local time) - 4.5ft (1.4m), 5s period with SSW swell.
- Evening surf: Evening surf (12 Oct, local time) - 6ft (1.9m), 6s period with SSW swell.
The current surf forecast for Trearddur Bay (Holy Island) at 9PM is: 1.9m 6s primary swell from a South-southwest direction and 0.4m 11s secondary swell from a Southwest direction (forecast issued at 06:00pm October 12). The wind direction is predicted to be cross-onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 Oct) | - | - |
| Afternoon (12 Oct) | 4.5ft (1.4m) | 5s |
| Evening (12 Oct) | 6ft (1.9m) | 6s |
Table - waves today at Trearddur Bay (Holy Island). (Swell directed towards the surf break)
Short Range ForecastLight rain (total 4mm), mostly falling on Mon night. Very mild (max 17°C on Mon night, min 13°C on Tue night). Winds decreasing (near gales from the SSW on Mon night, light winds from the SW by Tue night). | |||||||||||||||||||
Mon 12 | Tuesday 13 | Wednesday 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) | SSW 5 | SSW 6 | SSW 6 | SSW 7 | SSW 7 | SW 8 | SW 7 | SW 6 | SW 6 | SW 8 | SW 8 | WSW 8 | SW 8 | SW 5 | SSW 6 | SSW 7 | SSW 7 | SSW 7 | SW 8 |
Wave Graph  | |||||||||||||||||||
 kJ | 87 | 186 | 292 | 476 | 830 | 617 | 444 | 301 | 273 | 289 | 155 | 197 | 132 | 98 | 284 | 479 | 691 | 810 | 816 |
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 | on | on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 00:12AM5.60m | 12:28PM5.49m | 00:45AM5.41m | 1:02PM5.36m | |||||||||||||||
Low Tide | 5:59PM0.92m | 6:21AM0.96m | 6:35PM1.07m | 6:55AM1.21m | 7:10PM1.30m | ||||||||||||||
 |  |  | | |  |  | | | |  | | | |  | | | | | |
 | — | — | — | — | — | 7:39 | — | — | — | — | — | — | — | 7:41 | — | — | — | — | — |
 | 6:30 | — | — | — | — | — | — | — | 6:28 | — | — | — | — | — | — | — | 6:25 | — | — |
mm | — | — | — | — | — | 4 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 16 | 16 | 16 | 17 | 15 | 14 | 14 | 15 | 14 | 13 | 13 | 14 | 14 | 14 | 15 | 15 | 15 | 15 |
Feels °C | 10 | 9 | 10 | 8 | 8 | 9 | 7 | 7 | 8 | 7 | 7 | 9 | 9 | 8 | 6 | 7 | 7 | 7 | 7 |
Swell 1 Height (m) Direction Period (s) | SW 12 | SW 12 | SW 11 | — | — | SW 8 | — | — | — | SW 8 | SW 8 | NW 5 | WNW 4 | — | — | — | — | — | — |
| kJ | 23 | 34 | 31 | — | — | 617 | — | — | — | 289 | 155 | 17 | 7 | — | — | — | — | — | — |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | NW 5 | NNW 5 | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 11 | 3 | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SSW 5 | SSW 6 | SSW 6 | SSW 7 | SSW 7 | — | SW 7 | SW 6 | SW 6 | SW 7 | WNW 5 | WSW 8 | SW 8 | SW 5 | SSW 6 | SSW 7 | SSW 7 | SSW 7 | SW 8 |
| kJ | 87 | 186 | 292 | 476 | 830 | — | 444 | 301 | 273 | 261 | 46 | 197 | 132 | 98 | 284 | 479 | 691 | 810 | 816 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 72 | 59 | 275 | 114 | 255 | 281 | 251 | 101 | 283 | 460 | 462 | 174 | 174 | 51 | 96 | 96 | 234 | 438 | 438 |
Best forecast wave conditions in Anglesy | |||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||
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