Surf Forecasts:
How big are the waves at Trearddur Bay (Holy Island) today (13 Nov):
- Afternoon surf: Afternoon surf (13 Nov, local time) - 1.5ft (0.4m), 9s period with SW swell.
- Evening surf: Evening surf (13 Nov, local time) - 1ft (0.3m), 9s period with SW swell.
The current surf forecast for Trearddur Bay (Holy Island) at 9PM is: 0.3m 9s primary swell from a Southwest direction (forecast issued at 05:00pm November 13). An open ocean swell of 0.2m 3s is not directed at the surf break. The wind direction is predicted to be onshore.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Nov) | - | - |
| Afternoon (13 Nov) | 1.5ft (0.4m) | 9s |
| Evening (13 Nov) | 1ft (0.3m) | 9s |
Table - waves today at Trearddur Bay (Holy Island). (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 10mm), heaviest on Sun afternoon. Very mild (max 11°C on Sat afternoon, min 6°C on Mon morning). Winds decreasing (near gales from the NNW on Sun afternoon, light winds from the SW by Mon morning). | ||||||||||||||||||||||
Fri 13 | Saturday 14 | Sunday 15 | Mon 16 | |||||||||||||||||||
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 | 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 9 | SW 9 | SW 9 | SSW 8 | SSW 4 | SSW 4 | SSW 5 | SSW 5 | SSW 6 | SSW 6 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 8 | SSW 8 | SSW 7 | SSW 8 | SSW 8 | SW 8 | SW 10 |
Wave Graph  | ||||||||||||||||||||||
 kJ | 21 | 20 | 12 | 47 | 30 | 32 | 61 | 161 | 283 | 315 | 423 | 458 | 395 | 360 | 340 | 256 | 161 | 70 | 40 | 41 | 50 | 92 |
Wind (km/h) | ||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | on | on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-off | cross-off | cross-off | cross-off | cross | cross |
High Tide | 12:16PM5.30m | 00:38AM4.90m | 12:54PM5.13m | 1:21AM4.68m | 1:38PM4.95m | 2:11AM4.46m | ||||||||||||||||
Low Tide | 6:29PM1.59m | 6:42AM1.85m | 7:10PM1.79m | 7:23AM2.09m | 7:57PM1.99m | |||||||||||||||||
 |  | |  | | | |  | | | | | |  |  | | | | | | | | |
 | — | — | — | — | — | 7:39 | — | — | — | — | — | — | — | 7:41 | — | — | — | — | — | — | — | 7:43 |
 | 4:25 | — | — | — | — | — | — | — | 4:23 | — | — | — | — | — | — | — | 4:22 | — | — | — | — | 4:21 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 1 | 3 | 2 | 1 | 1 | — | — |
Temp °C | 9 | 9 | 9 | 10 | 9 | 10 | 9 | 9 | 10 | 11 | 10 | 10 | 10 | 9 | 10 | 11 | 9 | 8 | 7 | 7 | 7 | 7 |
Feels °C | 5 | 5 | 4 | 4 | 1 | 3 | 0 | -1 | 1 | 1 | 0 | 0 | 1 | 0 | 2 | 7 | -1 | -4 | -3 | -2 | -3 | -1 |
Swell 1 Height (m) Direction Period (s) | NNW 4 | SW 9 | SW 9 | SW 14 | — | SW 11 | SW 13 | W 13 | — | — | — | WSW 11 | WSW 11 | SW 7 | SSW 8 | SSW 8 | SSW 8 | SSW 7 | SSW 8 | SSW 8 | SW 8 | SW 10 |
| kJ | 3 | 20 | 12 | 8 | — | 20 | 7 | 3 | — | — | — | 12 | 11 | 151 | 257 | 256 | 161 | 70 | 40 | 41 | 50 | 92 |
Swell 2 Height (m) Direction Period (s) | SW 9 | NNW 4 | N 3 | — | — | WSW 13 | — | — | — | — | — | — | — | — | — | — | — | — | W 14 | SW 13 | — | WNW 4 |
| kJ | 21 | 3 | 1 | — | — | 17 | — | — | — | — | — | — | — | — | — | — | — | — | 4 | 7 | — | 7 |
Swell 3 Height (m) Direction Period (s) | — | SW 16 | SW 14 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | 10 | 8 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | SSW 8 | SSW 4 | SSW 4 | SSW 5 | SSW 5 | SSW 6 | SSW 6 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSE 4 | NNW 3 | NW 6 | NNW 7 | NNW 7 | NNW 6 | NNW 6 |
| kJ | — | — | — | 47 | 30 | 32 | 61 | 161 | 283 | 315 | 423 | 458 | 395 | 360 | 340 | 26 | 7 | 209 | 613 | 362 | 155 | 81 |
Nearest Offshore or Glassy | ||||||||||||||||||||||
Distance (km) | 187 | 163 | 163 | 238 | 186 | 186 | 186 | 253 | 253 | 319 | 319 | 253 | 253 | 128 | 59 | 59 | 280 | 299 | 306 | 219 | 174 | 101 |
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