Surf Forecasts:
How big are the waves at Trearddur Bay (Holy Island) today (18 Oct):
- Morning surf: Morning surf (18 Oct, local time) - 0.5ft (0.1m), 6s period with W swell.
The current surf forecast for Trearddur Bay (Holy Island) at 1AM is: 0.1m 6s primary swell from a Southwest direction (forecast issued at 06:00pm October 17). An open ocean swell of 0.2m 3s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Oct) | 0.5ft (0.1m) | 6s |
| Afternoon (18 Oct) | - | - |
| Evening (18 Oct) | - | - |
Table - waves today at Trearddur Bay (Holy Island). (Swell directed towards the surf break)
Short Range ForecastLight rain (total 6mm), mostly falling on Tue morning. Very mild (max 14°C on Mon afternoon, min 8°C on Sat night). Winds decreasing (fresh winds from the NE on Sun night, light winds from the SSE by Tue morning). | |||||||||||||||||||
Sat 17 | Sunday 18 | Monday 19 | |||||||||||||||||
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 11 | SW 6 | S 11 | SW 6 | SW 11 | — | S 10 | — | NE 2 | NE 3 | NE 3 | NE 3 | NE 3 | NE 4 | NE 4 | NE 5 | SE 3 | SSE 4 | SSE 4 |
Wave Graph  | |||||||||||||||||||
 kJ | 5 | 2 | 2 | 2 | 4 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 7 | 10 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | off | off | off | off | off | cross | cross | cross-off | cross-off |
High Tide | 3:02PM4.74m | 3:36AM4.32m | 4:02PM4.51m | 4:53AM4.11m | 5:20PM4.39m | ||||||||||||||
Low Tide | 9:22PM2.17m | 9:43AM2.49m | 10:30PM2.39m | 11:00AM2.68m | |||||||||||||||
 |  | | | | | | | | | | | |  |  |  | |  | | |
 | — | — | — | — | — | 7:48 | — | — | — | — | — | — | — | 7:50 | — | — | — | — | — |
 | 6:19 | — | — | — | — | — | — | — | 6:16 | — | — | — | — | — | — | — | 6:14 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — | — | — |
Temp °C | 10 | 9 | 10 | 9 | 9 | 8 | 9 | 10 | 10 | 10 | 11 | 11 | 10 | 10 | 11 | 12 | 14 | 13 | 12 |
Feels °C | 5 | 5 | 7 | 5 | 5 | 4 | 5 | 6 | 5 | 6 | 7 | 6 | 4 | 3 | 6 | 8 | 9 | 9 | 8 |
Swell 1 Height (m) Direction Period (s) | SW 6 | N 4 | N 4 | NNE 3 | SW 6 | — | W 6 | — | — | — | — | — | — | — | — | NNE 5 | NE 5 | NE 5 | N 4 |
| kJ | 2 | 5 | 2 | 1 | 2 | — | 1 | — | — | — | — | — | — | — | — | 19 | 13 | 4 | 1 |
Swell 2 Height (m) Direction Period (s) | SW 11 | SW 6 | SW 6 | SW 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | N 4 | NE 4 |
| kJ | 5 | 2 | 2 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 |
Swell 3 Height (m) Direction Period (s) | — | — | S 11 | — | SW 11 | — | S 10 | — | — | — | — | — | — | — | — | — | — | W 12 | — |
| kJ | — | — | 2 | — | 4 | — | 2 | — | — | — | — | — | — | — | — | — | — | 3 | — |
Wind waves Height (m) Direction Period (s) | N 4 | ENE 2 | — | — | NNE 3 | — | — | — | NE 2 | NE 3 | NE 3 | NE 3 | NE 3 | NE 4 | NE 4 | NE 5 | SE 3 | SSE 4 | SSE 4 |
| kJ | 9 | 1 | — | — | 1 | — | — | — | 1 | 1 | 1 | 3 | 9 | 23 | 45 | 33 | 4 | 7 | 10 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 163 | 163 | 161 | 163 | 163 | 179 | 179 | 184 | 246 | 246 | 246 | 246 | 246 | 182 | 163 | 249 | 249 | 235 | 186 |
Best forecast wave conditions in Anglesy | |||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||
Header Global | |||||||||||||||||||
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Live Wave Height (m)
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Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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