Surf Forecasts:
How big are the waves at Trearddur Bay (Holy Island) today (12 Aug):
- Morning surf: Morning surf (12 Aug, local time) - 0.5ft (0.1m), 12s period with SW swell.
- Afternoon surf: Afternoon surf (12 Aug, local time) - 0.5ft (0.1m), 12s period with SW swell.
- Evening surf: Evening surf (12 Aug, local time) - 0.5ft (0.1m), 12s period with SW swell.
The current surf forecast for Trearddur Bay (Holy Island) at 1PM is: 0.1m 10s primary swell from a Southwest direction and 0.1m 6s secondary swell from a South direction, 0.4m 3s secondary swell from a South-southwest direction (forecast issued at 06:00am August 12). The wind direction is predicted to be cross-onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 Aug) | 0.5ft (0.1m) | 12s |
| Afternoon (12 Aug) | 0.5ft (0.1m) | 12s |
| Evening (12 Aug) | 0.5ft (0.1m) | 12s |
Table - waves today at Trearddur Bay (Holy Island). (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 26°C on Wed afternoon, min 13°C on Fri night). Winds increasing (light winds from the NNE on Wed afternoon, fresh winds from the NNW by Fri night). | |||||||||||||||||||||||
Wednesday 12 | Thursday 13 | Friday 14 | |||||||||||||||||||||
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 11 | SW 12 | SW 12 | SSW 3 | SW 12 | SW 12 | SW 12 | SW 11 | SW 3 | SW 3 | SW 11 | SW 10 | SW 11 | SW 3 | SW 4 | SW 4 | SW 5 | SW 4 | SW 4 | SW 4 | WNW 4 | SSW 4 | SW 7 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 5 | 5 | 6 | 4 | 6 | 6 | 5 | 5 | 5 | 4 | 5 | 4 | 4 | 4 | 9 | 20 | 17 | 9 | 5 | 5 | 3 | 2 | 2 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-off | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-off | cross-off | cross-off | cross-off |
High Tide | 10:50AM5.42m | 11:07PM5.78m | 11:35AM5.56m | 11:49PM5.94m | 12:16PM5.58m | ||||||||||||||||||
Low Tide | 4:33AM0.72m | 4:48PM0.94m | 5:19AM0.45m | 5:32PM0.74m | 6:02AM0.32m | 6:14PM0.67m | |||||||||||||||||
 |  | | |  | |  | | | | | | | |  | | | |  | | | | | |
 | 5:52 | — | — | — | — | — | — | — | 5:54 | — | — | — | — | — | — | — | 5:54 | — | — | — | — | — | — |
 | — | — | — | — | — | 8:52 | — | — | — | — | — | — | — | 8:51 | — | — | — | — | — | — | — | 8:49 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 20 | 20 | 23 | 26 | 25 | 24 | 23 | 21 | 21 | 21 | 21 | 22 | 21 | 19 | 18 | 17 | 17 | 16 | 16 | 17 | 17 | 17 |
Feels °C | 19 | 16 | 16 | 20 | 24 | 24 | 22 | 20 | 18 | 19 | 20 | 20 | 22 | 20 | 17 | 16 | 16 | 16 | 13 | 14 | 16 | 15 | 15 |
Swell 1 Height (m) Direction Period (s) | SW 6 | SW 12 | SW 12 | SW 10 | SSW 3 | SSW 3 | — | SW 10 | SW 10 | SW 10 | SW 8 | SW 8 | SW 8 | SW 11 | SW 7 | S 11 | SW 5 | SW 4 | SW 4 | SW 4 | N 4 | SSW 4 | SW 4 |
| kJ | 1 | 5 | 6 | 4 | 2 | 1 | — | 4 | 4 | 4 | 3 | 3 | 2 | 4 | 2 | 2 | 17 | 9 | 5 | 5 | 9 | 2 | 1 |
Swell 2 Height (m) Direction Period (s) | SW 11 | S 12 | S 6 | S 6 | SW 12 | SW 12 | SW 12 | — | SW 11 | SW 5 | SW 5 | SW 10 | SW 11 | SW 11 | SW 11 | — | — | — | — | — | WNW 4 | WNW 3 | SW 7 |
| kJ | 5 | 3 | 1 | 1 | 6 | 6 | 5 | — | 5 | 1 | 1 | 4 | 4 | 4 | 5 | — | — | — | — | — | 3 | 1 | 2 |
Swell 3 Height (m) Direction Period (s) | W 11 | W 11 | W 10 | — | SW 6 | SW 6 | SW 5 | SW 11 | — | — | SW 11 | — | S 11 | — | — | — | — | — | — | — | SW 4 | — | — |
| kJ | 2 | 2 | 2 | — | 1 | 1 | 1 | 5 | — | — | 5 | — | 2 | — | — | — | — | — | — | — | 3 | — | — |
Wind waves Height (m) Direction Period (s) | — | SSW 3 | SSW 3 | SSW 3 | — | — | — | — | SW 3 | SW 3 | SW 3 | SW 3 | SSW 2 | SW 3 | SW 4 | SW 4 | — | WNW 3 | NW 3 | NNW 4 | NNW 4 | N 4 | N 4 |
| kJ | — | 3 | 3 | 4 | — | — | — | — | 2 | 2 | 1 | 1 | 1 | 2 | 9 | 20 | — | 2 | 3 | 9 | 9 | 6 | 9 |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 179 | 179 | 235 | 155 | 163 | 155 | 155 | 155 | 155 | 155 | 179 | 187 | 288 | 249 | 193 | 192 | 192 | 195 | 192 | 383 | 548 | 192 | 192 |
Best forecast wave conditions in Anglesy | |||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||||
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