Surf Forecasts:
How big are the waves at Trearddur Bay (Holy Island) today (12 Jun):
- Morning surf: Morning surf (12 Jun, local time) - 4.5ft (1.4m), 7s period with SW swell.
- Afternoon surf: Afternoon surf (12 Jun, local time) - 4ft (1.2m), 7s period with SW swell.
- Evening surf: Evening surf (12 Jun, local time) - 3.5ft (1.0m), 7s period with SW swell.
The current surf forecast for Trearddur Bay (Holy Island) at 4AM is: 1.3m 7s primary swell from a Southwest direction and 0.4m 4s secondary swell from a Northwest direction (forecast issued at 12:00am June 12). The wind direction is predicted to be onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 Jun) | 4.5ft (1.4m) | 7s |
| Afternoon (12 Jun) | 4ft (1.2m) | 7s |
| Evening (12 Jun) | 3.5ft (1.0m) | 7s |
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 16°C on Fri afternoon, min 10°C on Fri night). Winds decreasing (fresh winds from the W on Fri night, light winds from the NNW by Sat night). | ||||||||||||||||||||||||
Friday 12 | Saturday 13 | Sunday 14 | ||||||||||||||||||||||
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 | 4 PM | 7 PM | 10 PM | |
Swell Height Map |  |  |  |  |  |  |  |  |  | |||||||||||||||
Wave Height (m) Direction Period (s) | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | WSW 5 | WSW 5 | W 5 | W 5 | WNW 5 | WNW 5 | NW 5 | SW 5 | NW 4 | SW 5 | SSW 4 | S 15 | SSW 4 | S 15 | S 14 | WNW 3 | SW 4 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 184 | 165 | 147 | 200 | 181 | 135 | 91 | 91 | 104 | 121 | 124 | 72 | 69 | 30 | 10 | 13 | 5 | 2 | 4 | 2 | 4 | 4 | 1 | 1 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | off |
High Tide | 8:16AM5.04m | 8:54PM5.01m | 9:13AM5.23m | 9:45PM5.24m | 10:08AM5.40m | |||||||||||||||||||
Low Tide | 2:05AM1.52m | 2:33PM1.13m | 3:00AM1.24m | 3:26PM0.96m | 3:54AM0.96m | 4:17PM0.84m | ||||||||||||||||||
 | |  | | |  | |  | |  | |  | | | | | | | | | | | | | |
 | — | 4:50 | — | — | — | — | — | — | — | 4:50 | — | — | — | — | — | — | — | 4:50 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 9:45 | — | — | — | — | — | — | — | 9:45 | — | — | — | — | — | — | — | 9:46 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 14 | 14 | 15 | 15 | 16 | 15 | 13 | 11 | 11 | 10 | 11 | 12 | 13 | 15 | 14 | 12 | 11 | 11 | 11 | 12 | 12 | 13 | 13 |
Feels °C | 10 | 10 | 10 | 10 | 9 | 10 | 8 | 6 | 4 | 5 | 3 | 5 | 8 | 9 | 12 | 8 | 7 | 7 | 8 | 7 | 8 | 9 | 10 | 10 |
Swell 1 Height (m) Direction Period (s) | — | NW 4 | NW 4 | — | — | SW 7 | SW 7 | — | — | — | SW 12 | SW 6 | W 15 | NW 5 | NW 4 | SW 5 | SW 5 | SSW 4 | SSW 4 | SSW 4 | SW 4 | N 5 | NNW 4 | N 4 |
| kJ | — | 4 | 4 | — | — | 135 | 91 | — | — | — | 6 | 31 | 4 | 30 | 10 | 6 | 5 | 2 | 2 | 2 | 1 | 12 | 7 | 3 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | W 11 | — | SW 5 | — | — | — | S 15 | — | S 15 | SW 4 | WNW 3 | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | 3 | — | 9 | — | — | — | 4 | — | 4 | 1 | 1 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | NNW 5 | N 5 | — | — | — | — | — | S 14 | SW 4 | SW 4 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 1 | — | — | — | — | — | 4 | 1 | 1 |
Wind waves Height (m) Direction Period (s) | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | WNW 4 | WNW 4 | WSW 5 | WSW 5 | W 5 | W 5 | WNW 5 | WNW 5 | SW 5 | — | NW 4 | NW 4 | NNW 5 | NNW 5 | NNW 5 | NNW 5 | WNW 3 | — | — |
| kJ | 184 | 165 | 147 | 200 | 181 | 16 | 32 | 91 | 104 | 121 | 124 | 72 | 69 | 11 | — | 13 | 32 | 40 | 54 | 41 | 30 | 1 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 292 | 251 | 246 | 575 | 556 | 548 | 548 | 219 | 259 | 179 | 179 | 179 | 187 | 305 | 292 | 179 | 179 | 163 | 179 | 187 | 192 | 192 | 194 | 179 |
Best forecast wave conditions in Anglesy | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
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