Surf Forecasts:
How big are the waves at Trearddur Bay (Holy Island) today (17 Jul):
- Morning surf: Morning surf (17 Jul, local time) - 0.5ft (0.2m), 6s period with SSW swell.
- Afternoon surf: Afternoon surf (17 Jul, local time) - 0.5ft (0.1m), 12s period with SW swell.
- Evening surf: Evening surf (17 Jul, local time) - 0.5ft (0.1m), 12s period with SW swell.
The current surf forecast for Trearddur Bay (Holy Island) at 5AM is: 0.1m 12s primary swell from a Southwest direction and 0.2m 7s secondary swell from a South-southwest direction (forecast issued at 12:00am July 17). The wind direction is predicted to be cross-offshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Jul) | 0.5ft (0.2m) | 6s |
| Afternoon (17 Jul) | 0.5ft (0.1m) | 12s |
| Evening (17 Jul) | 0.5ft (0.1m) | 12s |
Table - waves today at Trearddur Bay (Holy Island). (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 21°C on Thu night, min 13°C on Fri night). Wind will be generally light. | ||||||||||||||||||||||||
Friday 17 | Saturday 18 | Sunday 19 | ||||||||||||||||||||||
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) | SSW 7 | SSW 7 | SSW 7 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SW 12 | SW 13 | S 13 | S 13 | SW 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 10 | NNW 3 | S 10 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 8 | 8 | 4 | 4 | 6 | 6 | 6 | 6 | 6 | 6 | 3 | 5 | 5 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 0 | 2 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 00:52AM5.87m | 1:23PM5.44m | 1:37AM5.79m | 2:08PM5.28m | 2:22AM5.60m | 2:52PM5.06m | ||||||||||||||||||
Low Tide | 7:08AM0.38m | 7:20PM0.84m | 7:55AM0.51m | 8:05PM1.00m | 8:41AM0.77m | 8:50PM1.23m | ||||||||||||||||||
 |  |  |  | | |  |  | | | | | | | | | | | | | | | | | |
 | — | 5:11 | — | — | — | — | — | — | — | 5:11 | — | — | — | — | — | — | — | 5:13 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 9:36 | — | — | — | — | — | — | — | 9:35 | — | — | — | — | — | — | — | 9:34 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 18 | 15 | 18 | 18 | 18 | 19 | 18 | 15 | 13 | 13 | 13 | 14 | 15 | 17 | 17 | 17 | 16 | 15 | 15 | 16 | 17 | 17 | 16 |
Feels °C | 20 | 16 | 13 | 15 | 13 | 13 | 15 | 15 | 13 | 10 | 10 | 9 | 9 | 11 | 14 | 14 | 15 | 14 | 13 | 12 | 12 | 14 | 14 | 13 |
Swell 1 Height (m) Direction Period (s) | SSW 7 | SSW 7 | SSW 7 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 5 | S 5 | N 5 | NNW 5 | S 11 | S 11 | S 11 | S 10 | — | S 10 |
| kJ | 5 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 18 | 7 | 2 | 2 | 2 | 2 | — | 2 |
Swell 2 Height (m) Direction Period (s) | SW 12 | SW 12 | S 12 | S 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 13 | S 11 | SW 11 | SW 11 | S 11 | S 11 | S 11 | S 11 | S 11 | — | — | — | — | — | — |
| kJ | 6 | 6 | 3 | 3 | 6 | 6 | 6 | 6 | 6 | 6 | 2 | 5 | 5 | 2 | 2 | 2 | 2 | 2 | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | SW 14 | SW 14 | S 14 | — | — | — | — | — | — | S 13 | S 13 | S 13 | — | — | — | W 11 | S 5 | S 5 | — | — | — | — | — | — |
| kJ | 8 | 8 | 4 | — | — | — | — | — | — | 3 | 3 | 3 | — | — | — | 2 | 1 | 1 | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NNE 2 | — | NNW 3 | NNW 4 | N 4 | N 4 | NNW 3 | N 3 | N 4 | N 5 | NNW 5 | NNW 6 | NNW 6 | NNW 6 | N 6 | NNW 5 | — | — | NNW 4 | NNW 4 | NNW 4 | NNW 4 | NNW 3 | N 3 |
| kJ | 1 | — | 2 | 4 | 6 | 6 | 4 | 3 | 11 | 28 | 49 | 92 | 134 | 112 | 69 | 39 | — | — | 6 | 5 | 4 | 4 | 2 | 2 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 326 | 326 | 326 | 326 | 580 | 589 | 927 | 317 | 317 | 283 | 284 | 284 | 887 | 284 | 284 | 249 | 277 | 252 | 298 | 284 | 284 | 292 | 284 | 273 |
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)
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