Surf Forecasts:
How big are the waves at Trearddur Bay (Holy Island) today (29 Sep):
- Morning surf: Morning surf (29 Sep, local time) - 2.5ft (0.8m), 5s period with SSE swell.
- Afternoon surf: Afternoon surf (29 Sep, local time) - 3.5ft (1.1m), 5s period with SSE swell.
- Evening surf: Evening surf (29 Sep, local time) - 6ft (1.8m), 6s period with S swell.
The current surf forecast for Trearddur Bay (Holy Island) at 4AM is: 0.7m 4s primary swell from a South-southeast direction and 0.2m 6s secondary swell from a South-southwest direction, 0.1m 12s secondary swell from a South direction (forecast issued at 12:00am September 29). The wind direction is predicted to be cross-offshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (29 Sep) | 2.5ft (0.8m) | 5s |
| Afternoon (29 Sep) | 3.5ft (1.1m) | 5s |
| Evening (29 Sep) | 6ft (1.8m) | 6s |
Table - waves today at Trearddur Bay (Holy Island). (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 19mm), heaviest on Tue night. Warm (max 20°C on Tue afternoon, min 13°C on Mon night). Winds increasing (light winds from the E on Mon night, strong winds from the S by Wed morning). | ||||||||||||||||||||||||
Tuesday 29 | Wednesday 30 | Thursday 1 | ||||||||||||||||||||||
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 | 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 7 | SSE 4 | SSE 5 | SSE 5 | SSE 5 | SSE 5 | S 6 | S 6 | SSW 8 | SSW 9 | SSW 10 | SSW 11 | SSW 6 | SSW 7 | SSW 11 | SSW 11 | SW 10 | SW 10 | SW 10 | SW 10 | SW 10 | SSW 5 | SSW 6 | SSW 6 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 11 | 13 | 22 | 35 | 28 | 69 | 169 | 269 | 691 | 987 | 782 | 992 | 448 | 540 | 1148 | 903 | 703 | 560 | 517 | 404 | 370 | 138 | 166 | 197 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross-off | cross-off | cross-off | cross | cross | cross-on | cross | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | on | on | on | cross-on | cross-on | cross-on |
High Tide | 00:12AM5.89m | 12:32PM5.64m | 00:50AM5.80m | 1:11PM5.55m | 1:33AM5.61m | 1:53PM5.37m | ||||||||||||||||||
Low Tide | 6:21AM0.63m | 6:39PM0.78m | 7:00AM0.79m | 7:21PM0.94m | 7:43AM1.08m | 8:08PM1.20m | ||||||||||||||||||
 |  | |  | | |  |  | |  | |  | | | |  |  | | | | | | | | |
 | — | — | 7:15 | — | — | — | — | — | — | — | 7:16 | — | — | — | — | — | — | — | 7:18 | — | — | — | — | — |
 | — | — | — | — | — | — | 7:00 | — | — | — | — | — | — | 6:59 | — | — | — | — | — | — | — | 6:55 | — | — |
mm | — | — | — | — | — | — | 1 | 1 | 3 | 10 | 2 | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — |
Temp °C | 15 | 14 | 13 | 15 | 18 | 20 | 20 | 19 | 17 | 16 | 15 | 16 | 16 | 16 | 15 | 14 | 14 | 14 | 14 | 14 | 15 | 15 | 15 | 15 |
Feels °C | 10 | 10 | 9 | 11 | 13 | 14 | 13 | 12 | 11 | 10 | 10 | 8 | 7 | 8 | 9 | 9 | 10 | 9 | 9 | 9 | 10 | 9 | 9 | 9 |
Swell 1 Height (m) Direction Period (s) | SW 7 | SSW 6 | SSW 6 | S 12 | SSW 6 | NE 6 | ENE 6 | NE 5 | — | SW 10 | SW 11 | — | — | — | — | — | — | — | SW 10 | — | — | — | — | — |
| kJ | 11 | 4 | 4 | 3 | 14 | 5 | 3 | 1 | — | 566 | 584 | — | — | — | — | — | — | — | 517 | — | — | — | — | — |
Swell 2 Height (m) Direction Period (s) | SW 12 | S 12 | S 12 | SW 6 | ENE 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 6 | 3 | 3 | 5 | 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | W 12 | S 12 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | 3 | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SSE 3 | SSE 4 | SSE 5 | SSE 5 | SSE 5 | SSE 5 | S 6 | S 6 | SSW 8 | SSW 9 | SSW 10 | SSW 11 | SSW 6 | SSW 7 | SSW 11 | SSW 11 | SW 10 | SW 10 | — | SW 10 | SW 10 | SSW 5 | SSW 6 | SSW 6 |
| kJ | 3 | 13 | 22 | 35 | 28 | 69 | 169 | 269 | 691 | 987 | 782 | 992 | 448 | 540 | 1148 | 903 | 703 | 560 | — | 404 | 370 | 138 | 166 | 197 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 205 | 205 | 275 | 455 | 456 | 880 | 515 | 755 | 346 | 283 | 96 | 333 | 332 | 281 | 114 | 98 | 98 | 101 | 98 | 114 | 253 | 280 | 239 | 114 |
Best forecast wave conditions in Anglesy | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
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