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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 6 am Friday 24 Apr 2026 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
10.0° C
(Which is 1.0°C warmer than normal for this time of year)How big are the waves at Trearddur Bay (Holy Island) today?
The current surf forecast for Trearddur Bay (Holy Island) at 2PM is: 0.7m 11s primary swell from a Southwest direction (forecast issued at 06:00am April 24). The wind direction is predicted to be cross-shore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (24 Apr) | 2ft (0.6m) | 10s |
| Afternoon (24 Apr) | 2.5ft (0.7m) | 11s |
| Evening (24 Apr) | 2ft (0.6m) | 11s |
Table - waves today at Trearddur Bay (Holy Island). (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Very mild (max 15°C on Fri afternoon, min 11°C on Sun morning). Wind will be generally light. | ||||||||||||||||||||||||
Friday 24 | Saturday 25 | Sunday 26 | Mon 27 | |||||||||||||||||||||
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 | 1 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SW 10 | SW 10 | SW 10 | SW 11 | SW 11 | SW 11 | SW 11 | SW 11 | SW 10 | SW 10 | SW 10 | SW 10 | SW 10 | SW 10 | SW 10 | SW 10 | SW 9 | SW 9 | SW 9 | SW 9 | SW 9 | SW 8 | SW 8 | SW 8 | |
76 | 76 | 82 | 121 | 119 | 94 | 92 | 92 | 89 | 84 | 84 | 84 | 80 | 48 | 47 | 44 | 41 | 29 | 28 | 20 | 19 | 18 | 17 | 17 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | glassy | cross | cross | cross-off | glassy | glassy | cross | cross-on | on | on | cross-on | glassy | glassy | cross-off | glassy | cross-on | cross-on | on | on | on | cross-on | cross-on | |
High Tide | 4:22AM4.78m | 5:21PM4.51m | 5:47AM4.68m | 6:48PM4.51m | 7:11AM4.78m | 8:00PM4.68m | ||||||||||||||||||
Low Tide | 10:52AM1.54m | 11:22PM2.07m | 12:17PM1.57m | 00:46AM2.03m | 1:33PM1.42m | |||||||||||||||||||
 |  | | | | | | |  |  | | | |  |  | | | | | | | | | | |
 | 6:00 | — | — | — | — | — | — | — | 5:58 | — | — | — | — | — | — | — | 5:56 | — | — | — | — | — | — | 5:54 |
 | — | — | — | — | — | 8:34 | — | — | — | — | — | — | — | 8:35 | — | — | — | — | — | — | — | 8:37 | — | 8:38 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 14 | 13 | 13 | 14 | 15 | 15 | 15 | 14 | 13 | 13 | 13 | 13 | 14 | 14 | 13 | 13 | 13 | 13 | 11 | 13 | 14 | 13 | 13 | 13 |
12 | 11 | 12 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 10 | 11 | 13 | 11 | 11 | 12 | 11 | 8 | 11 | 11 | 10 | 11 | 11 | |
Swell 1 Height (m) Direction Period (s) | SW 10 | SW 10 | SW 10 | SW 11 | SW 11 | SW 11 | SW 11 | SW 11 | SW 10 | SW 10 | SW 10 | SW 10 | SW 10 | SW 10 | SW 10 | SW 10 | SW 9 | SW 9 | SW 9 | SW 9 | SW 9 | SW 8 | SW 8 | SW 8 |
 kJ | 76 | 76 | 82 | 121 | 119 | 94 | 92 | 92 | 89 | 84 | 84 | 84 | 80 | 48 | 47 | 44 | 41 | 29 | 28 | 20 | 19 | 18 | 17 | 17 |
Swell 2 Height (m) Direction Period (s) | — | NE 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | NE 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SE 4 | SE 3 | SE 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 2 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 51 | 51 | 0 | 0 | 0 | 8 | 8 | 8 | 51 | 51 | 51 | 51 | 51 | 51 | 155 | 155 | 155 | 155 | 163 | 163 | 155 |
Best forecast wave conditions in Anglesy | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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Ocean Swells (m)- Wind Speed (km/h)
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