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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 pm Monday 01 Jun 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
12.8° 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 (02 Jun):
- Morning surf: Morning surf (02 Jun, local time) - 3ft (0.9m), 6s period with SW swell.
- Afternoon surf: Afternoon surf (02 Jun, local time) - 2.5ft (0.8m), 6s period with SW swell.
- Evening surf: Evening surf (02 Jun, local time) - 2ft (0.6m), 8s period with SW swell.
The current surf forecast for Trearddur Bay (Holy Island) at 12AM is: 1.4m 6s primary swell from a South-southwest direction and 0.1m 14s secondary swell from a Southwest direction, 0.1m 10s secondary swell from a West direction (forecast issued at 06:00pm June 01). The wind direction is predicted to be cross-onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (02 Jun) | 3ft (0.9m) | 6s |
| Afternoon (02 Jun) | 2.5ft (0.8m) | 6s |
| Evening (02 Jun) | 2ft (0.6m) | 8s |
Table - waves today at Trearddur Bay (Holy Island). (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 23mm), heaviest during Wed morning. Very mild (max 14°C on Mon afternoon, min 12°C on Mon night). Winds increasing (light winds from the WSW on Mon night, strong winds from the SSE by Wed morning). | ||||||||||||||||||||||||
Mon 1 | Tuesday 2 | Wednesday 3 | Thu 4 | |||||||||||||||||||||
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 | 10 AM | 1 PM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SSW 6 | SSW 6 | SSW 6 | SSW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 7 | SW 8 | WSW 4 | WSW 4 | SW 7 | SSW 5 | SSW 6 | SW 7 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | WSW 5 | SW 12 | |
175 | 162 | 127 | 112 | 72 | 64 | 47 | 39 | 47 | 67 | 45 | 25 | 29 | 79 | 66 | 303 | 416 | 657 | 681 | 469 | 364 | 319 | 115 | 471 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | on | on | cross-on | cross-on | on | cross-on | cross-on | on | on | on | on | on | on | on | cross-on | cross-on | |
High Tide | 00:02AM5.27m | 12:24PM4.95m | 00:38AM5.25m | 1:01PM4.86m | 1:14AM5.18m | |||||||||||||||||||
Low Tide | 5:51PM1.30m | 6:13AM1.23m | 6:26PM1.37m | 6:50AM1.27m | 7:02PM1.48m | 7:28AM1.34m | ||||||||||||||||||
 | |  | | | | |  |  |  |  | | | |  |  | | |  |  | | | | | |
 | — | — | — | — | 4:56 | — | — | — | — | — | — | — | 4:56 | — | — | — | — | — | — | — | 4:54 | — | — | — |
 | — | 9:35 | — | — | — | — | — | — | — | 9:36 | — | — | — | — | — | — | — | 9:37 | — | — | — | — | — | 9:37 |
2 | 2 | — | — | — | 1 | 1 | — | — | — | — | — | — | — | 6 | 2 | 1 | 2 | 2 | 1 | 1 | — | 1 | 1 | |
Temp °C | 14 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 14 | 14 | 14 | 13 | 12 | 12 | 12 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 13 |
9 | 8 | 8 | 9 | 9 | 10 | 9 | 8 | 11 | 11 | 10 | 9 | 9 | 7 | 4 | 6 | 7 | 6 | 6 | 6 | 7 | 7 | 6 | 8 | |
Swell 1 Height (m) Direction Period (s) | SW 11 | SW 14 | SW 14 | SW 14 | SW 13 | SW 5 | SW 6 | SW 6 | SW 13 | WNW 4 | SW 8 | — | — | NW 4 | — | — | — | — | — | — | — | — | SW 8 | SW 12 |
 kJ | 4 | 8 | 8 | 8 | 7 | 28 | 47 | 39 | 7 | 1 | 45 | — | — | 4 | — | — | — | — | — | — | — | — | 115 | 471 |
Swell 2 Height (m) Direction Period (s) | SW 14 | SW 11 | SW 10 | W 10 | — | SSW 6 | SW 13 | SW 13 | — | — | SSW 4 | — | NW 4 | — | NW 4 | — | — | — | — | — | — | — | — | — |
| kJ | 8 | 4 | 4 | 2 | — | 16 | 7 | 7 | — | — | 1 | — | 4 | — | 1 | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | SW 13 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SW 6 | SW 6 | — | WNW 3 | SW 6 | SW 7 | WNW 4 | WSW 4 | WSW 4 | SW 7 | SSW 5 | SSW 6 | SW 7 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | WSW 5 | WNW 5 |
| kJ | 175 | 162 | 127 | 112 | 72 | 64 | — | 4 | 47 | 67 | 7 | 25 | 29 | 79 | 66 | 303 | 416 | 657 | 681 | 469 | 364 | 319 | 112 | 49 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 249 | 98 | 249 | 252 | 88 | 219 | 51 | 51 | 51 | 51 | 51 | 51 | 114 | 114 | 249 | 249 | 249 | 234 | 309 | 309 | 309 | 101 | 101 | 101 |
Best forecast wave conditions in Anglesy | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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