Surf Forecasts:
How big are the waves at Trearddur Bay (Holy Island) today (10 Sep):
- Morning surf: Morning surf (10 Sep, local time) - 5ft (1.5m), 5s period with SSW swell.
- Afternoon surf: Afternoon surf (10 Sep, local time) - 7ft (2.2m), 7s period with SSW swell.
- Evening surf: Evening surf (10 Sep, local time) - 4.5ft (1.4m), 7s period with SW swell.
The current surf forecast for Trearddur Bay (Holy Island) at 3PM is: 2.2m 7s primary swell from a South-southwest direction (forecast issued at 12:00pm September 10). The wind direction is predicted to be onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (10 Sep) | 5ft (1.5m) | 5s |
| Afternoon (10 Sep) | 7ft (2.2m) | 7s |
| Evening (10 Sep) | 4.5ft (1.4m) | 7s |
Table - waves today at Trearddur Bay (Holy Island). (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 10mm), heaviest on Sat morning. Very mild (max 18°C on Sat night, min 14°C on Thu night). Winds decreasing (strong winds from the SSW on Thu morning, light winds from the W by Fri afternoon). | |||||||||||||||||||||
Thu 10 | Friday 11 | Saturday 12 | |||||||||||||||||||
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) | SSW 5 | SSW 6 | SSW 7 | SSW 7 | SW 7 | SW 7 | SW 7 | SW 6 | SW 6 | SSW 6 | SW 6 | SSW 6 | SSW 6 | SSW 4 | SW 6 | SW 6 | SW 6 | SW 7 | SW 7 | SW 7 | SW 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 143 | 389 | 437 | 251 | 168 | 103 | 63 | 42 | 33 | 26 | 19 | 15 | 20 | 40 | 145 | 252 | 284 | 381 | 447 | 305 | 192 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | on | on | cross-on | cross-on | cross-on | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | on | on | on | on |
High Tide | 10:36AM5.47m | 10:49PM5.85m | 11:14AM5.59m | 11:28PM5.95m | 11:50AM5.61m | ||||||||||||||||
Low Tide | 4:32PM0.95m | 5:00AM0.47m | 5:11PM0.75m | 5:39AM0.42m | 5:49PM0.68m | ||||||||||||||||
 |  | | |  |  | |  | | |  | | | | | | | | | |  | |
 | 6:41 | — | — | — | — | — | 6:43 | — | — | — | — | — | — | — | 6:45 | — | — | — | — | — | — |
 | — | — | — | 7:46 | — | — | — | — | — | — | — | 7:45 | — | — | — | — | — | — | — | 7:42 | — |
mm | — | 1 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | 2 | 3 | 1 | — | — | 1 |
Temp °C | 15 | 16 | 16 | 17 | 17 | 16 | 15 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 15 | 16 | 16 | 16 | 17 | 17 | 18 |
Feels °C | 7 | 8 | 10 | 13 | 13 | 12 | 12 | 10 | 10 | 11 | 12 | 11 | 10 | 8 | 8 | 9 | 10 | 11 | 13 | 13 | 16 |
Swell 1 Height (m) Direction Period (s) | — | — | — | — | — | SW 7 | SW 7 | SW 6 | SW 6 | SSW 6 | SW 6 | SSW 6 | N 4 | — | — | — | — | — | — | — | SW 7 |
| kJ | — | — | — | — | — | 103 | 63 | 42 | 33 | 26 | 19 | 15 | 1 | — | — | — | — | — | — | — | 192 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | NNW 4 | NNW 4 | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | 3 | 2 | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | WNW 3 | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SSW 5 | SSW 6 | SSW 7 | SSW 7 | SW 7 | W 4 | WNW 4 | WNW 4 | NW 4 | NW 4 | WNW 4 | — | SSW 6 | SSW 4 | SW 6 | SW 6 | SW 6 | SW 7 | SW 7 | SW 7 | — |
| kJ | 143 | 389 | 437 | 251 | 168 | 7 | 8 | 13 | 17 | 13 | 2 | — | 20 | 40 | 145 | 252 | 284 | 381 | 447 | 305 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 275 | 275 | 292 | 312 | 480 | 514 | 51 | 255 | 51 | 72 | 179 | 178 | 51 | 187 | 195 | 299 | 299 | 305 | 319 | 323 | 88 |
Best forecast wave conditions in Anglesy | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
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