Surf Forecasts:
How big are the waves at Trearddur Bay (Holy Island) today (30 Sep):
- Morning surf: Morning surf (30 Sep, local time) - 7ft (2.2m), 10s period with SSW swell.
- Afternoon surf: Afternoon surf (30 Sep, local time) - 8ft (2.5m), 7s period with SSW swell.
- Evening surf: Evening surf (30 Sep, local time) - 7ft (2.2m), 11s period with SSW swell.
The current surf forecast for Trearddur Bay (Holy Island) at 12AM is: 2.0m 8s primary swell from a South direction (forecast issued at 06:00pm September 29). An open ocean swell of 0.1m 5s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (30 Sep) | 7ft (2.2m) | 10s |
| Afternoon (30 Sep) | 8ft (2.5m) | 7s |
| Evening (30 Sep) | 7ft (2.2m) | 11s |
Table - waves today at Trearddur Bay (Holy Island). (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 25mm), heaviest during Tue night. Warm (max 21°C on Tue afternoon, min 14°C on Wed night). Winds decreasing (strong winds from the S on Wed morning, moderate winds from the SW by Wed night). | |||||||||||||||||||
Tue 29 | Wednesday 30 | Thursday 1 | |||||||||||||||||
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) | SSE 5 | S 6 | S 7 | SSW 8 | SSW 9 | SSW 10 | SSW 11 | SSW 7 | SSW 7 | SSW 7 | SSW 11 | SW 11 | SW 11 | SW 10 | SW 10 | SW 10 | SSW 10 | SSW 6 | SSW 6 |
Wave Graph  | |||||||||||||||||||
 kJ | 111 | 239 | 348 | 585 | 1045 | 961 | 1122 | 529 | 665 | 611 | 1082 | 730 | 652 | 527 | 428 | 377 | 378 | 154 | 226 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-on | cross | on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | on | on | on | on | cross-on | cross-on | cross-on |
High Tide | 00:50AM5.80m | 1:11PM5.55m | 1:33AM5.61m | 1:53PM5.37m | |||||||||||||||
Low Tide | 6:39PM0.78m | 7:00AM0.79m | 7:21PM0.94m | 7:43AM1.08m | 8:08PM1.20m | ||||||||||||||
 |  |  |  |  | |  | | |  | |  | | | | | | | | |
 | — | — | — | — | — | 7:16 | — | — | — | — | — | — | — | 7:18 | — | — | — | — | — |
 | — | 7:00 | — | — | — | — | — | — | 6:59 | — | — | — | — | — | — | — | 6:55 | — | — |
mm | — | — | — | 4 | 8 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 21 | 19 | 17 | 15 | 15 | 16 | 16 | 16 | 15 | 14 | 14 | 14 | 14 | 14 | 14 | 15 | 15 | 15 |
Feels °C | 14 | 14 | 13 | 10 | 8 | 8 | 7 | 7 | 8 | 8 | 8 | 9 | 9 | 9 | 9 | 9 | 9 | 8 | 8 |
Swell 1 Height (m) Direction Period (s) | ENE 6 | ENE 6 | NE 5 | SW 9 | — | SW 11 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 3 | 3 | 1 | 269 | — | 716 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SSE 5 | S 6 | S 7 | SSW 8 | SSW 9 | SSW 10 | SSW 11 | SSW 7 | SSW 7 | SSW 7 | SSW 11 | SW 11 | SW 11 | SW 10 | SW 10 | SW 10 | SSW 10 | SSW 6 | SSW 6 |
| kJ | 111 | 239 | 348 | 585 | 1045 | 961 | 1122 | 529 | 665 | 611 | 1082 | 730 | 652 | 527 | 428 | 377 | 378 | 154 | 226 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 880 | 515 | 515 | 999 | 456 | 114 | 284 | 280 | 281 | 281 | 98 | 98 | 98 | 98 | 114 | 252 | 280 | 255 | 114 |
Best forecast wave conditions in Anglesy | |||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||
Header Global | |||||||||||||||||||
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