Surf Forecasts:
How big are the waves at Trearddur Bay (Holy Island) today (23 Aug):
- Morning surf: Morning surf (23 Aug, local time) - 0.5ft (0.1m), 14s period with SW swell.
- Afternoon surf: Afternoon surf (23 Aug, local time) - 0.5ft (0.1m), 14s period with SW swell.
- Evening surf: Evening surf (23 Aug, local time) - 0.5ft (0.1m), 13s period with SW swell.
The current surf forecast for Trearddur Bay (Holy Island) at 12PM is: 0.1m 14s primary swell from a Southwest direction (forecast issued at 06:00am August 23). An open ocean swell of 0.3m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (23 Aug) | 0.5ft (0.1m) | 14s |
| Afternoon (23 Aug) | 0.5ft (0.1m) | 14s |
| Evening (23 Aug) | 0.5ft (0.1m) | 13s |
Table - waves today at Trearddur Bay (Holy Island). (Swell directed towards the surf break)
Short Range ForecastLight rain (total 6mm), mostly falling on Tue night. Warm (max 23°C on Tue afternoon, min 13°C on Sun morning). Winds increasing (calm on Mon morning, fresh winds from the E by Tue night). | |||||||||||||||||||||||
Sunday 23 | Monday 24 | Tuesday 25 | |||||||||||||||||||||
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 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | S 13 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 8 | 8 | 8 | 8 | 7 | 7 | 7 | 7 | 8 | 8 | 8 | 8 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 3 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | cross-off | cross-off | glassy | cross | cross-off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | cross-off |
High Tide | 8:04AM4.17m | 8:27PM4.49m | 9:08AM4.41m | 9:19PM4.79m | 9:52AM4.67m | 9:59PM5.08m | |||||||||||||||||
Low Tide | 1:37AM2.37m | 2:08PM2.34m | 2:47AM2.11m | 3:05PM2.09m | 3:35AM1.78m | 3:46PM1.80m | |||||||||||||||||
 |  | | | | | | | | | | | |  | | | | | | | | |  | |
 | 6:11 | — | — | — | — | — | — | — | 6:13 | — | — | — | — | — | — | — | 6:13 | — | — | — | — | — | — |
 | — | — | — | — | — | 8:29 | — | — | — | — | — | — | — | 8:27 | — | — | — | — | — | — | — | 8:24 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 13 | 13 | 14 | 15 | 15 | 14 | 15 | 16 | 17 | 17 | 18 | 20 | 19 | 19 | 17 | 14 | 14 | 16 | 20 | 22 | 23 | 20 |
Feels °C | 10 | 12 | 11 | 11 | 12 | 12 | 10 | 12 | 13 | 14 | 15 | 16 | 18 | 14 | 14 | 13 | 10 | 10 | 12 | 17 | 17 | 19 | 13 |
Swell 1 Height (m) Direction Period (s) | SW 15 | NNW 4 | N 4 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 11 | SW 10 | SW 10 | SW 10 | SW 9 | SW 9 | SW 9 | SW 13 | SW 13 | SE 4 | SW 13 | SW 13 | SW 13 | SW 9 | SW 8 |
| kJ | 8 | 6 | 6 | 8 | 7 | 7 | 7 | 7 | 5 | 4 | 4 | 4 | 3 | 3 | 3 | 7 | 7 | 1 | 7 | 7 | 7 | 3 | 3 |
Swell 2 Height (m) Direction Period (s) | SW 12 | SW 15 | SW 14 | — | — | — | SW 13 | — | SW 14 | SW 14 | SW 14 | — | — | SW 13 | SW 13 | SW 9 | SW 9 | SW 13 | SW 8 | SW 8 | SW 8 | SW 13 | S 13 |
| kJ | 6 | 8 | 8 | — | — | — | 7 | — | 8 | 8 | 8 | — | — | 7 | 7 | 3 | 3 | 7 | 3 | 3 | 3 | 7 | 3 |
Swell 3 Height (m) Direction Period (s) | W 12 | S 12 | — | — | — | — | — | SW 14 | — | — | — | SW 14 | SW 13 | — | — | — | SW 9 | SW 8 | NE 5 | — | — | — | — |
| kJ | 3 | 3 | — | — | — | — | — | 7 | — | — | — | 8 | 7 | — | — | — | 3 | 3 | 1 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | N 4 | — | — | N 4 | N 4 | N 2 | NNE 2 | — | — | ESE 3 | — | — | — | ENE 3 | NE 3 | E 3 | E 4 | ENE 5 | ENE 5 | NE 5 | NE 5 | NE 4 | ENE 4 |
| kJ | 9 | — | — | 3 | 2 | 1 | 1 | — | — | 1 | — | — | — | 3 | 5 | 5 | 5 | 9 | 13 | 12 | 11 | 14 | 26 |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 187 | 267 | 184 | 163 | 287 | 187 | 208 | 163 | 208 | 208 | 246 | 249 | 249 | 208 | 208 | 249 | 249 | 249 | 249 | 249 | 249 | 249 | 267 |
Best forecast wave conditions in Anglesy | |||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||||
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