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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 12 pm Friday 01 May 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
10.6° C
(Which is 1.2°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 8PM is: 0.6m 4s primary swell from a South-southwest direction (forecast issued at 12:00pm May 01). The wind direction is predicted to be cross-onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (01 May) | 1.5ft (0.4m) | 3s |
| Afternoon (01 May) | 1.5ft (0.4m) | 3s |
| Evening (01 May) | 2.5ft (0.7m) | 4s |
Table - waves today at Trearddur Bay (Holy Island). (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 12mm), heaviest on Sat afternoon. Very mild (max 12°C on Fri morning, min 9°C on Sun night). Wind will be generally light. | ||||||||||||||||||||||||
Fri 1 | Saturday 2 | Sunday 3 | Mon 4 | |||||||||||||||||||||
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 | 4 AM | 7 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SSW 3 | SSW 3 | SSW 3 | SSW 4 | SSW 4 | SW 4 | SSW 4 | SSW 4 | SSW 4 | SSW 4 | SSW 4 | SSW 4 | SSW 4 | SW 4 | SW 5 | SW 5 | SW 5 | SSW 5 | SSW 5 | SSW 5 | SW 5 | SW 5 | SW 5 | SW 5 | |
4 | 3 | 3 | 8 | 13 | 17 | 10 | 13 | 11 | 11 | 8 | 6 | 7 | 5 | 5 | 6 | 4 | 3 | 2 | 2 | 1 | 1 | 1 | 1 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | off | off | off | cross-off | cross-off | off | off | off | off | off | off | cross-off | |
High Tide | 11:00AM5.30m | 11:16PM5.29m | 11:32AM5.26m | 11:47PM5.32m | 12:05PM5.19m | 00:19AM5.30m | ||||||||||||||||||
Low Tide | 5:06PM0.92m | 5:20AM0.99m | 5:38PM0.98m | 5:54AM1.01m | 6:11PM1.09m | 6:28AM1.10m | ||||||||||||||||||
 |  | | |  | | | | | |  | |  |  | | | | | | | | | | | |
 | 5:45 | — | — | — | — | — | 5:43 | — | — | — | — | — | — | — | 5:41 | — | — | — | — | — | — | — | 5:39 | — |
 | — | — | — | 8:45 | — | — | — | — | — | — | — | 8:47 | — | — | — | — | — | — | — | 8:50 | — | — | — | 8:52 |
— | — | — | — | — | — | — | — | — | — | 1 | 2 | 1 | — | 2 | 2 | 2 | 2 | — | — | — | — | — | — | |
Temp °C | 12 | 12 | 12 | 11 | 11 | 11 | 10 | 10 | 10 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 9 |
8 | 9 | 8 | 6 | 6 | 7 | 6 | 6 | 6 | 7 | 8 | 9 | 10 | 7 | 6 | 6 | 7 | 7 | 5 | 6 | 5 | 5 | 6 | 6 | |
Swell 1 Height (m) Direction Period (s) | NE 4 | NE 4 | — | — | — | W 11 | — | — | — | — | — | SSW 4 | SSW 4 | SW 4 | SW 5 | SW 5 | SW 5 | SSW 5 | SSW 5 | SSW 5 | SW 5 | SW 5 | SW 5 | SW 5 |
 kJ | 1 | 1 | — | — | — | 2 | — | — | — | — | — | 6 | 7 | 5 | 5 | 6 | 4 | 3 | 2 | 2 | 1 | 1 | 1 | 1 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 5 | SW 5 | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SSW 3 | SSW 3 | SSW 3 | SSW 4 | SSW 4 | SW 4 | SSW 4 | SSW 4 | SSW 4 | SSW 4 | SSW 4 | — | — | — | NE 3 | NNE 3 | NNE 4 | N 4 | N 4 | N 4 | N 4 | NNE 4 | N 4 | N 3 |
| kJ | 4 | 3 | 3 | 8 | 13 | 17 | 10 | 13 | 11 | 11 | 8 | — | — | — | 2 | 6 | 11 | 7 | 7 | 9 | 9 | 6 | 5 | 3 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 249 | 250 | 246 | 264 | 246 | 238 | 246 | 246 | 241 | 249 | 249 | 249 | 249 | 249 | 249 | 249 | 276 | 249 | 249 | 276 | 276 | 273 | 251 | 250 |
Best forecast wave conditions in Anglesy | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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