Surf Forecasts:
How big are the waves at Trearddur Bay (Holy Island) today (09 Sep):
- Morning surf: Morning surf (09 Sep, local time) - 1.5ft (0.4m), 7s period with SW swell.
- Afternoon surf: Afternoon surf (09 Sep, local time) - 1.5ft (0.4m), 8s period with SW swell.
- Evening surf: Evening surf (09 Sep, local time) - 1ft (0.3m), 7s period with SW swell.
The current surf forecast for Trearddur Bay (Holy Island) at 9AM is: 0.4m 7s primary swell from a Southwest direction and 0.1m 10s secondary swell from a Southwest direction (forecast issued at 12:00am September 09). An open ocean swell of 1.5m 6s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (09 Sep) | 1.5ft (0.4m) | 7s |
| Afternoon (09 Sep) | 1.5ft (0.4m) | 8s |
| Evening (09 Sep) | 1ft (0.3m) | 7s |
Table - waves today at Trearddur Bay (Holy Island). (Swell directed towards the surf break)
Short Range ForecastLight rain (total 4mm), mostly falling on Thu afternoon. Very mild (max 17°C on Thu night, min 13°C on Tue night). Winds increasing (light winds from the WNW on Wed afternoon, strong winds from the SSW by Thu morning). | ||||||||||||||||||||||||
Wednesday 9 | Thursday 10 | Friday 11 | ||||||||||||||||||||||
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 6 | SW 6 | SW 6 | SW 8 | SW 8 | SW 8 | SW 7 | SW 3 | SW 4 | SW 4 | SW 5 | SSW 6 | SSW 6 | SSW 7 | SSW 7 | SW 7 | SSW 7 | SSW 7 | SW 7 | SW 7 | SSW 7 | SSW 7 | SW 7 | SSW 6 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 9 | 6 | 5 | 15 | 15 | 14 | 9 | 6 | 24 | 46 | 51 | 154 | 347 | 530 | 417 | 222 | 134 | 86 | 49 | 47 | 31 | 30 | 21 | 16 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-off | cross | cross | cross | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross-on | cross-on |
High Tide | 9:53AM5.26m | 10:08PM5.63m | 10:36AM5.47m | 10:49PM5.85m | 11:14AM5.59m | |||||||||||||||||||
Low Tide | 3:33AM1.02m | 3:50PM1.24m | 4:19AM0.68m | 4:32PM0.95m | 5:00AM0.47m | 5:11PM0.75m | ||||||||||||||||||
 | |  | |  | | |  | | | |  |  | |  |  | | | | | | | | | |
 | — | 6:39 | — | — | — | — | — | — | — | 6:41 | — | — | — | — | — | — | — | 6:43 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 7:50 | — | — | — | — | — | — | — | 7:46 | — | — | — | — | — | — | — | 7:45 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 2 | 1 | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 14 | 14 | 13 | 13 | 14 | 14 | 14 | 14 | 14 | 15 | 16 | 16 | 15 | 16 | 17 | 16 | 14 | 14 | 13 | 13 | 14 | 14 | 14 |
Feels °C | 5 | 6 | 8 | 8 | 8 | 12 | 10 | 9 | 9 | 8 | 10 | 9 | 8 | 8 | 12 | 14 | 13 | 10 | 10 | 9 | 10 | 12 | 12 | 10 |
Swell 1 Height (m) Direction Period (s) | SW 6 | SW 6 | SW 6 | SW 8 | SW 8 | N 5 | N 5 | NNW 4 | N 4 | — | — | — | — | — | — | SW 7 | SSW 7 | SSW 7 | SW 7 | SW 7 | SSW 7 | SSW 7 | SW 7 | NNW 3 |
| kJ | 9 | 6 | 5 | 15 | 15 | 27 | 12 | 4 | 1 | — | — | — | — | — | — | 222 | 134 | 86 | 49 | 47 | 31 | 30 | 21 | 1 |
Swell 2 Height (m) Direction Period (s) | SW 11 | SW 10 | SW 10 | — | — | SW 8 | SW 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | NW 4 | NW 4 | NNW 4 |
| kJ | 4 | 4 | 4 | — | — | 14 | 9 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 5 | 3 | 1 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | NNW 5 | NNW 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | 2 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NW 6 | NW 6 | NNW 6 | NNW 6 | NNW 6 | WNW 4 | W 4 | SW 3 | SW 4 | SW 4 | SW 5 | SSW 6 | SSW 6 | SSW 7 | SSW 7 | — | W 3 | WNW 4 | WNW 4 | WNW 4 | NW 4 | — | — | SSW 6 |
| kJ | 224 | 245 | 196 | 136 | 84 | 5 | 2 | 6 | 24 | 46 | 51 | 154 | 347 | 530 | 417 | — | 6 | 8 | 10 | 10 | 7 | — | — | 16 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 346 | 179 | 179 | 179 | 192 | 51 | 192 | 192 | 194 | 298 | 298 | 333 | 312 | 480 | 101 | 167 | 51 | 88 | 179 | 179 | 179 | 51 | 155 | 155 |
Best forecast wave conditions in Anglesy | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
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