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Silver Bay (Holy Island) Surf Forecast
/ Wales – Anglesy (10 surf breaks) /
Surf Forecasts:
Silver Bay (Holy Island) surfForecast / Wales – Anglesy / UK
12 Day Weather and Surf, issued 5 pm Tuesday 28 Oct 2025 GMT
Best Forecast Surf Conditions for Silver Bay (Holy Island) this week:
The most powerful waves expected at Silver Bay (Holy Island) in the next 12 days are 4.5m 9s and forecast to arrive on Monday (Nov 03) at 12PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 5s period and expected on Thursday (Oct 30) at 6AM.
| Wave Type | Time (GMT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 12PM (Mon 3rd Nov) | 15ft (4.5m) 9s |
Table - best surf conditions forecast for Silver Bay (Holy Island) over the next 12 days.
Short Range Forecast Heavy rain (total 23mm), heaviest during Thu night. Very mild (max 13°C on Tue afternoon, min 10°C on Wed night). Mainly near gales. | Days 3-6 Weather Summary Heavy rain (total 35mm), heaviest during Sat morning. Very mild (max 14°C on Fri afternoon, min 8°C on Sat morning). Winds increasing (light winds from the WSW on Fri night, gales from the SSW by Sun night). | ||||||||||||||||||||||
Tue 28 | Wednesday 29 | Thursday 30 | Friday 31 | Saturday 01 | Sunday 02 | Monday 03 | |||||||||||||||||
| PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |||
Rating (10 max) | |||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||||
| Period(s) (?) | 6 | 6 | 5 | 6 | 6 | 5 | 6 | 9 | 8 | 8 | 8 | 6 | 5 | 8 | 6 | 6 | 8 | 9 | 9 | 9 | 7 | ||
Wave (?)Graph  | |||||||||||||||||||||||
 kJ (?) | 222 | 311 | 110 | 184 | 133 | 17 | 322 | 1236 | 1318 | 1014 | 1082 | 232 | 204 | 1004 | 538 | 292 | 1655 | 3040 | 3001 | 1793 | 447 | ||
Wind (km/h) | |||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | on | on | on | cross- on | cross- on | cross | on | cross- on | cross- on | on | cross- off | cross- on | on | cross- on | cross- on | on | on | on | on | cross- on | ||
High Tide / height (m) | 2:43AM 4.31 | 3:10PM 4.55 | 4:04AM 4.19 | 4:29PM 4.52 | 5:31AM 4.30 | 5:46PM 4.68 | 6:40AM 4.58 | 6:48PM 4.99 | 7:30AM 4.93 | 7:38PM 5.34 | 8:13AM 5.27 | 8:22PM 5.67 | 8:53AM 5.55 | ||||||||||
Low Tide / height (m) | 8:26PM 2.18 | 8:49AM 2.48 | 9:38PM 2.29 | 10:08AM 2.57 | 11:00PM 2.20 | 11:31AM 2.42 | 12:12AM 1.89 | 12:36PM 2.09 | 1:07AM 1.48 | 1:28PM 1.67 | 1:53AM 1.08 | 2:12PM 1.27 | 2:35AM 0.75 | ||||||||||
Tue 28 | Wednesday 29 | Thursday 30 | Friday 31 | Saturday 01 | Sunday 02 | Monday 03 | |||||||||||||||||
| Sunrise | - | - | 7:09 | - | - | 7:11 | - | - | 7:13 | - | - | 7:15 | - | - | 7:16 | - | - | 7:18 | - | - | 7:20 | ||
| Sunset | 4:54 | - | - | 4:52 | - | - | 4:51 | - | - | 4:49 | - | - | 4:46 | - | - | 4:45 | - | - | 4:43 | - | - | ||
 |  |  | |  |  |  |  |  | |  |  | | |  | | | | | | | |||
Rain (mm) | 1 | 1 | - | 2 | - | - | 1 | 16 | 2 | 2 | 3 | 24 | 1 | 1 | - | - | 3 | 1 | - | 4 | - | ||
| Temp. °C | 13 | 13 | 11 | 11 | 11 | 12 | 13 | 13 | 13 | 14 | 14 | 9 | 11 | 10 | 11 | 12 | 14 | 14 | 14 | 14 | 14 | ||
| Feels °C (?) | 5 | 5 | 3 | 2 | 4 | 2 | 1 | 2 | 4 | 5 | 4 | 2 | 1 | -1 | 1 | 3 | 4 | 3 | 5 | 3 | 3 | ||
- Map Icons:
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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 Silver 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.
Information about the Silver Bay (Holy Island) Surf forecast
The above surf forecast table for Silver Bay (Holy Island) provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Silver Bay (Holy Island) can be found by selecting the local surf guide option on the grey menu. Our Silver Bay (Holy Island) surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Silver Bay (Holy Island)) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Silver Bay (Holy Island) may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Are you planning a holiday in Anglesy? If you are looking for accommodation near Silver Bay (Holy Island), camping, hotels and holiday cottages in Anglesy, consider staying in Anglesey which is 6 km (4 miles) away. Other places in and around Anglesy where you can find information about places to rent, and car hire include Holyhead which is 6 km (4 miles) away, Bangor, Porthmadog and Llandudno.
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