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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 5 pm Saturday 07 Mar 2026 GMTForecast 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
8.3° C
(Which is slightly warmer than usual)How big are the waves at Trearddur Bay (Holy Island) today?
The current surf forecast for Trearddur Bay (Holy Island) at 1AM is: 0.1m 17s primary swell from a Southwest direction and 0.1m 14s secondary swell from a Southwest direction, 0.3m 3s secondary swell from a Southwest direction (forecast issued at 05:00pm March 07). The wind direction is predicted to be cross-onshore.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (08 Mar) | 0.5ft (0.1m) | 13s |
| Afternoon (08 Mar) | 0.5ft (0.1m) | 12s |
| Evening (08 Mar) | 0.5ft (0.1m) | 12s |
Table - waves today at Trearddur Bay (Holy Island). (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 07 | Sunday 08 | Monday 09 | Tuesday 10 | |||||||||||||||||||||
| 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |  |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 17 | 18 | 17 | 17 | 17 | 13 | 13 | 16 | 12 | 12 | 12 | 7 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 7 | 7 | 7 | 7 | 4 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 11 | 9 | 12 | 12 | 12 | 7 | 7 | 7 | 6 | 6 | 6 | 6 | 9 | 10 | 10 | 16 | 16 | 16 | 14 | 14 | 12 | 12 | 11 | 17 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | on | cross- on | on | on | cross- on | on | cross- on | cross- on |
High Tide / height (m) | 12:30PM 5.44 | 12:47AM 5.17 | 1:02PM 5.19 | 1:20AM 4.97 | 1:37PM 4.89 | 1:57AM 4.73 | ||||||||||||||||||
Low Tide / height (m) | 6:42PM 0.99 | 6:51AM 1.15 | 7:15PM 1.31 | 7:27AM 1.45 | 7:51PM 1.67 | 8:07AM 1.80 | ||||||||||||||||||
Saturday 07 | Sunday 08 | Monday 09 | Tuesday 10 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | 6:50 | - | - | - | - | - | - | - | 6:48 | - | - | - | - | - | - | - | 6:46 | - |
| Sunset | - | 6:06 | - | - | - | - | - | - | - | 6:07 | - | - | - | - | - | - | - | 6:09 | - | - | - | - | - | - |
 | |  | | |  |  |  | | |  | |  | | | | | | | | | | |  | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | 1 | - | - | - | - | - | - | - | - | - | - | 1 |
| Temp. °C | 6 | 7 | 7 | 7 | 6 | 7 | 7 | 8 | 9 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 8 | 8 | 8 | 8 |
| Feels °C (?) | 1 | 3 | 3 | 3 | 2 | 3 | 4 | 5 | 6 | 6 | 6 | 6 | 7 | 7 | 7 | 7 | 7 | 5 | 5 | 3 | 2 | 0 | -1 | -2 |
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