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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 Friday 06 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
8.4° 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 10PM is: 0.1m 14s primary swell from a West direction (forecast issued at 05:00pm March 06). An open ocean swell of 0.3m 4s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (06 Mar) | - | - |
| Afternoon (06 Mar) | 0.5ft (0.1m) | 14s |
| Evening (06 Mar) | 0.5ft (0.1m) | 14s |
Table - waves today at Trearddur Bay (Holy Island). (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Friday 06 | Saturday 07 | Sunday 08 | Monday 09 | |||||||||||||||||||||
| 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) (?) | 14 | 14 | 14 | 4 | 8 | 3 | 17 | 4 | 4 | 18 | 17 | 17 | 14 | 13 | 13 | 16 | 12 | 3 | 4 | 4 | 8 | 8 | 8 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 8 | 4 | 4 | 0 | 1 | 2 | 11 | 11 | 11 | 9 | 12 | 12 | 7 | 7 | 7 | 7 | 6 | 6 | 6 | 6 | 10 | 11 | 10 | 15 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | glass | cross | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross | cross- on | cross- on | cross | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | on | cross- on |
High Tide / height (m) | 12:16AM 5.33 | 12:30PM 5.44 | 12:47AM 5.17 | 1:02PM 5.19 | 1:20AM 4.97 | |||||||||||||||||||
Low Tide / height (m) | 6:10PM 0.73 | 6:18AM 0.90 | 6:42PM 0.99 | 6:51AM 1.15 | 7:15PM 1.31 | 7:27AM 1.45 | ||||||||||||||||||
Friday 06 | Saturday 07 | Sunday 08 | Monday 09 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | 6:52 | - | - | - | - | - | - | - | 6:50 | - | - | - | - | - | - | - | 6:48 | - |
| Sunset | - | 6:04 | - | - | - | - | - | - | - | 6:06 | - | - | - | - | - | - | - | 6:07 | - | - | - | - | - | - |
 | |  | | | | | | | |  |  | | |  | |  | |  | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | - | 1 | 1 | 1 | 1 | 1 | - |
| Temp. °C | 7 | 6 | 5 | 5 | 5 | 5 | 5 | 6 | 6 | 7 | 7 | 7 | 7 | 8 | 9 | 9 | 9 | 10 | 10 | 9 | 9 | 9 | 9 | 9 |
| Feels °C (?) | 2 | 2 | 2 | 1 | 0 | 0 | -1 | 1 | 1 | 3 | 3 | 3 | 3 | 5 | 6 | 6 | 5 | 6 | 7 | 6 | 6 | 6 | 6 | 5 |
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