- Forecast
- Maps
- Live
- Weather State
- Spot Information
Trearddur Bay (Holy Island) Surf Forecast
/ Wales – Anglesy (10 surf breaks) /
Surf Forecasts:
Trearddur Bay (Holy Island) surfForecast / Wales – Anglesy / UK
48hr Weather and Surf, issued 12 am Tuesday 14 Oct 2025 BSTForecast update in hr min s Forecast update imminent
Trearddur Bay (Holy Island) surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Trearddur Bay (Holy Island) sea temperature is
15.0° C
(Which is 1.0°C warmer than normal for this time of year)| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (14 Oct) | - | - |
| Afternoon (14 Oct) | 0.5ft (0.1m) | 14s |
| Evening (14 Oct) | 0.5ft (0.1m) | 13s |
Table - waves today at Trearddur Bay (Holy Island). (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Tuesday 14 | Wednesday 15 | Thursday 16 | ||||||||||||||||||||||
| 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 | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |  |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | ||||||||
| Period(s) (?) | - | - | - | - | - | 14 | 14 | 13 | 13 | 13 | 12 | - | - | - | - | - | 14 | - | 13 | - | - | - | - | - |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 0 | 0 | 0 | 0 | 0 | 4 | 4 | 4 | 3 | 3 | 3 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 3 | 0 | 0 | 0 | 0 | 0 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | glass | glass | glass | off | off | off | off | off | off | off | cross- off | glass | glass | glass | off | off | cross- off | glass | glass | cross- off | glass | glass | off |
High Tide / height (m) | 4:36AM 4.65 | 5:06PM 4.71 | 6:12AM 4.51 | 6:41PM 4.75 | 7:39AM 4.64 | |||||||||||||||||||
Low Tide / height (m) | 10:11PM 1.74 | 10:40AM 2.25 | 11:39PM 1.92 | 12:12PM 2.36 | 1:08AM 1.81 | 1:34PM 2.19 | ||||||||||||||||||
Tuesday 14 | Wednesday 15 | Thursday 16 | ||||||||||||||||||||||
| Sunrise | - | - | - | - | 7:41 | - | - | - | - | - | - | - | 7:43 | - | - | - | - | - | - | - | 7:45 | - | - | - |
| Sunset | - | - | - | - | - | - | 6:25 | - | - | - | - | - | - | - | 6:22 | - | - | - | - | - | - | - | 6:21 | - |
 | | | |  | | | | | | | | | |  | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 11 | 11 | 11 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 11 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 12 | 13 | 12 |
| Feels °C (?) | 10 | 11 | 11 | 12 | 11 | 11 | 9 | 9 | 9 | 9 | 10 | 11 | 10 | 12 | 12 | 11 | 10 | 10 | 10 | 10 | 10 | 11 | 12 | 10 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for Wales - Anglesy
calm at Mona mean that is clean at Trearddur Bay (Holy Island). 0.1m 3s local chop from the S to make surfable waves.
Expand
<
>
View all
17 km away, 59 min ago
4 km/h
ESE
0.0
15.0
Air / Water (°C)
Please reload the page to see if there are any updates.
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