Surf Forecasts:
How big are the waves at Trearddur Bay (Holy Island) today (10 Nov):
- Morning surf: Morning surf (10 Nov, local time) - 2.5ft (0.7m), 11s period with SW swell.
- Afternoon surf: Afternoon surf (10 Nov, local time) - 2.5ft (0.8m), 12s period with SW swell.
- Evening surf: Evening surf (10 Nov, local time) - 2.5ft (0.8m), 11s period with SW swell.
The current surf forecast for Trearddur Bay (Holy Island) at 8AM is: 0.7m 11s primary swell from a Southwest direction and 0.2m 5s secondary swell from a South-southeast direction (forecast issued at 11:00pm November 09). An open ocean swell of 0.3m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (10 Nov) | 2.5ft (0.7m) | 11s |
| Afternoon (10 Nov) | 2.5ft (0.8m) | 12s |
| Evening (10 Nov) | 2.5ft (0.8m) | 11s |
Table - waves today at Trearddur Bay (Holy Island). (Swell directed towards the surf break)
Short Range ForecastMostly dry. Mild temperatures (max 9°C on Tue morning, min 7°C on Mon night). Winds increasing (light winds from the E on Tue morning, fresh winds from the NE by Wed night). | ||||||||||||||||||||
Tuesday 10 | Wednesday 11 | Thu 12 | ||||||||||||||||||
9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | |
Swell Height Map |  | |  |  |  |  |  |  | ||||||||||||
Wave Height (m) Direction Period (s) | SW 12 | SW 11 | SW 11 | SW 11 | SW 11 | SW 11 | SW 12 | SW 11 | SW 11 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 11 | SW 11 | SW 11 | SSW 11 |
Wave Graph  | ||||||||||||||||||||
 kJ | 69 | 104 | 126 | 101 | 130 | 155 | 161 | 150 | 147 | 336 | 277 | 260 | 248 | 248 | 175 | 169 | 130 | 96 | 94 | 76 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | off | cross-off | off | off |
High Tide | 10:16PM5.46m | 10:33AM5.50m | 10:50PM5.38m | 11:06AM5.49m | 11:25PM5.26m | |||||||||||||||
Low Tide | 4:23AM1.12m | 4:39PM1.18m | 4:56AM1.24m | 5:15PM1.27m | 5:30AM1.40m | |||||||||||||||
 |  | | |  | | | | | | | | | |  |  | | | | | |
 | — | — | — | 7:31 | — | — | — | — | — | — | — | 7:33 | — | — | — | — | — | — | — | 7:35 |
 | — | — | — | — | — | — | 4:30 | — | — | — | — | — | — | — | 4:29 | — | — | — | — | 4:27 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 8 | 7 | 7 | 7 | 7 | 9 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 9 | 9 | 8 | 8 | 9 | 8 | 8 |
Feels °C | 2 | 3 | 3 | 3 | 3 | 6 | 5 | 3 | 3 | 1 | 2 | 1 | 1 | 2 | 3 | 3 | 3 | 4 | 1 | 0 |
Swell 1 Height (m) Direction Period (s) | SSW 7 | SW 11 | SW 11 | SW 11 | SW 11 | SW 11 | SW 12 | SW 11 | SW 11 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 11 | SW 11 | SW 11 | SSW 11 |
| kJ | 43 | 104 | 126 | 101 | 130 | 155 | 161 | 150 | 147 | 336 | 277 | 260 | 248 | 248 | 175 | 169 | 130 | 96 | 94 | 76 |
Swell 2 Height (m) Direction Period (s) | SW 12 | S 7 | — | SSE 5 | — | ENE 5 | SSE 4 | SW 15 | SW 14 | — | — | — | N 5 | — | — | — | — | — | — | — |
| kJ | 69 | 28 | — | 2 | — | 2 | 2 | 75 | 121 | — | — | — | 1 | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | SSE 4 | SW 17 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | 1 | 11 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | E 3 | ENE 4 | ESE 4 | ENE 4 | ENE 4 | SE 4 | NE 5 | ENE 5 | ENE 5 | ENE 3 | NE 3 | NE 5 | NE 5 | ENE 5 | NE 3 | NE 3 | NNE 3 | NNE 3 | N 4 | N 5 |
| kJ | 4 | 3 | 3 | 3 | 2 | 5 | 3 | 8 | 15 | 10 | 9 | 22 | 23 | 15 | 5 | 3 | 4 | 3 | 16 | 46 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 15 | 0 | 0 | 2 | 0 | 0 | 0 | 50 | 50 | 8 | 8 | 8 | 8 | 8 | 0 | 0 | 0 | 8 | 8 | 179 |
Best forecast wave conditions in Anglesy | ||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Never miss your swells again.
Built by surfers, trusted by millions for over 20 years. The Wavefinder in our app makes it even easier to find where the best waves are breaking. Follow the yellow stars along your coast and get there first.
Scan the QR code to open the Surf‑Forecast app
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Trearddur Bay (Holy Island) surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Nearest