Surf Forecasts:
How big are the waves at Trearddur Bay (Holy Island) today (13 Aug):
- Morning surf: Morning surf (13 Aug, local time) - 0.5ft (0.1m), 11s period with SW swell.
- Afternoon surf: Afternoon surf (13 Aug, local time) - 0.5ft (0.1m), 11s period with SW swell.
- Evening surf: Evening surf (13 Aug, local time) - 2ft (0.6m), 3s period with SSW swell.
The current surf forecast for Trearddur Bay (Holy Island) at 1AM is: 0.1m 11s primary swell from a Southwest direction and 0.1m 10s secondary swell from a Southwest direction, 0.2m 5s secondary swell from a South-southwest direction (forecast issued at 06:00pm August 12). The wind direction is predicted to be cross-onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Aug) | 0.5ft (0.1m) | 11s |
| Afternoon (13 Aug) | 0.5ft (0.1m) | 11s |
| Evening (13 Aug) | 2ft (0.6m) | 3s |
Table - waves today at Trearddur Bay (Holy Island). (Swell directed towards the surf break)
Short Range ForecastSome drizzle, heaviest during Fri morning. Warm (max 26°C on Wed afternoon, min 14°C on Sat morning). Wind will be generally light. | |||||||||||||||||||
Wed 12 | Thursday 13 | Friday 14 | |||||||||||||||||
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 12 | SW 12 | SW 12 | SW 11 | SW 11 | SW 10 | SW 11 | SW 10 | SW 11 | SW 3 | SSW 4 | SW 5 | SW 5 | SW 4 | SW 4 | SW 4 | NW 4 | SSW 4 | SSW 5 |
Wave Graph  | |||||||||||||||||||
 kJ | 6 | 6 | 5 | 5 | 5 | 4 | 5 | 4 | 4 | 4 | 13 | 25 | 17 | 10 | 7 | 5 | 5 | 2 | 2 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross-on | cross-on | cross-on | cross-on | on | on | on | cross-on | cross-on | cross-on | cross-on | on | cross | cross-off | cross-off | cross-off | cross-off |
High Tide | 11:07PM5.78m | 11:35AM5.56m | 11:49PM5.94m | 12:16PM5.58m | |||||||||||||||
Low Tide | 4:48PM0.94m | 5:19AM0.45m | 5:32PM0.74m | 6:02AM0.32m | 6:14PM0.67m | ||||||||||||||
 | |  | | |  | | | | | | |  | |  |  | | | | |
 | — | — | — | — | 5:54 | — | — | — | — | — | — | — | 5:54 | — | — | — | — | — | — |
 | — | 8:52 | — | — | — | — | — | — | — | 8:51 | — | — | — | — | — | — | — | 8:49 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — |
Temp °C | 26 | 25 | 25 | 24 | 22 | 21 | 21 | 21 | 22 | 22 | 19 | 18 | 17 | 17 | 16 | 16 | 17 | 17 | 16 |
Feels °C | 24 | 23 | 23 | 22 | 20 | 19 | 20 | 20 | 22 | 21 | 17 | 15 | 15 | 17 | 15 | 15 | 15 | 15 | 14 |
Swell 1 Height (m) Direction Period (s) | 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 | NW 4 | SSW 4 | SSW 5 |
| kJ | 2 | 1 | — | 4 | 4 | 4 | 3 | 3 | 2 | 4 | 2 | 2 | 17 | 10 | 7 | 5 | 3 | 2 | 2 |
Swell 2 Height (m) Direction Period (s) | SW 12 | SW 12 | SW 12 | — | SW 11 | SW 5 | SW 5 | SW 10 | SW 11 | SW 11 | S 11 | — | — | — | — | — | SW 4 | WNW 3 | — |
| kJ | 6 | 6 | 5 | — | 5 | 1 | 1 | 4 | 4 | 4 | 2 | — | — | — | — | — | 3 | 1 | — |
Swell 3 Height (m) Direction Period (s) | SW 6 | SW 6 | SW 5 | SW 11 | — | — | SW 11 | — | S 11 | — | — | — | — | S 11 | — | — | N 4 | — | — |
| kJ | 1 | 1 | 1 | 5 | — | — | 5 | — | 2 | — | — | — | — | 2 | — | — | 3 | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | SSW 5 | SSW 2 | SSW 2 | SSW 3 | SSW 2 | SSW 2 | SW 3 | SSW 4 | SW 5 | — | WNW 3 | NW 3 | NW 4 | NW 4 | N 4 | N 4 |
| kJ | — | — | — | 3 | 1 | 1 | 1 | 1 | 1 | 2 | 13 | 25 | — | 1 | 3 | 5 | 5 | 3 | 3 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 161 | 155 | 155 | 155 | 155 | 155 | 179 | 249 | 249 | 249 | 192 | 179 | 192 | 192 | 192 | 305 | 368 | 192 | 192 |
Best forecast wave conditions in Anglesy | |||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||
Header Global | |||||||||||||||||||
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