Surf Forecasts:
How big are the waves at Trearddur Bay (Holy Island) today (13 Sep):
- Morning surf: Morning surf (13 Sep, local time) - 2ft (0.6m), 6s period with SSW swell.
- Afternoon surf: Afternoon surf (13 Sep, local time) - 1.5ft (0.5m), 6s period with SW swell.
- Evening surf: Evening surf (13 Sep, local time) - 1.5ft (0.4m), 6s period with SSW swell.
The current surf forecast for Trearddur Bay (Holy Island) at 8AM is: 0.6m 6s primary swell from a South-southwest direction (forecast issued at 12:00am September 13). The wind direction is predicted to be cross-shore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Sep) | 2ft (0.6m) | 6s |
| Afternoon (13 Sep) | 1.5ft (0.5m) | 6s |
| Evening (13 Sep) | 1.5ft (0.4m) | 6s |
Table - waves today at Trearddur Bay (Holy Island). (Swell directed towards the surf break)
Short Range ForecastLight rain (total 6mm), mostly falling on Mon night. Very mild (max 19°C on Sat night, min 14°C on Tue morning). Winds increasing (light winds from the WSW on Sat night, strong winds from the SSW by Mon night). | ||||||||||||||||||||||||
Sunday 13 | Monday 14 | Tuesday 15 | ||||||||||||||||||||||
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) | SSW 7 | SSW 6 | SW 6 | SSW 6 | SW 6 | SW 6 | SSW 6 | SSW 6 | SSW 6 | SW 4 | SW 5 | SW 5 | SSW 5 | SSW 5 | SSW 6 | SW 6 | SW 6 | SW 6 | SW 6 | WSW 6 | WSW 5 | W 5 | NW 5 | NW 5 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 76 | 52 | 39 | 25 | 18 | 18 | 14 | 14 | 18 | 17 | 23 | 23 | 46 | 95 | 222 | 284 | 237 | 203 | 152 | 100 | 72 | 73 | 57 | 66 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross |
High Tide | 00:04AM5.91m | 12:25PM5.56m | 00:40AM5.77m | 1:00PM5.44m | 1:15AM5.55m | 1:34PM5.27m | ||||||||||||||||||
Low Tide | 6:16AM0.50m | 6:26PM0.74m | 6:52AM0.70m | 7:02PM0.91m | 7:27AM0.99m | 7:38PM1.17m | ||||||||||||||||||
 |  |  |  | | | | | | | | |  | |  | |  | | | | | | |  | |
 | — | 6:47 | — | — | — | — | — | — | — | 6:48 | — | — | — | — | — | — | — | 6:50 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 7:39 | — | — | — | — | — | — | — | 7:37 | — | — | — | — | — | — | — | 7:35 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | 4 | 1 | — | — | — | — | — | 1 |
Temp °C | 18 | 17 | 16 | 15 | 15 | 16 | 17 | 16 | 16 | 16 | 16 | 17 | 15 | 17 | 17 | 17 | 17 | 16 | 15 | 14 | 14 | 14 | 16 | 14 |
Feels °C | 18 | 16 | 16 | 15 | 14 | 16 | 16 | 14 | 14 | 13 | 14 | 15 | 10 | 12 | 12 | 12 | 12 | 12 | 12 | 9 | 8 | 8 | 12 | 7 |
Swell 1 Height (m) Direction Period (s) | SSW 7 | SSW 6 | SW 6 | SSW 6 | SW 6 | SW 6 | SSW 6 | S 13 | — | — | — | — | — | SW 12 | — | — | — | S 12 | — | — | — | — | SW 5 | SW 6 |
| kJ | 76 | 52 | 39 | 25 | 18 | 18 | 14 | 3 | — | — | — | — | — | 6 | — | — | — | 3 | — | — | — | — | 23 | 18 |
Swell 2 Height (m) Direction Period (s) | NW 4 | NW 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 2 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | S 13 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NW 4 | — | — | — | — | — | — | SSW 6 | SSW 6 | SW 4 | SW 5 | SW 5 | SSW 5 | SSW 5 | SSW 6 | SW 6 | SW 6 | SW 6 | SW 6 | WSW 6 | WSW 5 | W 5 | NW 5 | NW 5 |
| kJ | 3 | — | — | — | — | — | — | 14 | 18 | 17 | 23 | 23 | 46 | 95 | 222 | 284 | 237 | 203 | 152 | 100 | 72 | 73 | 57 | 66 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 51 | 51 | 51 | 179 | 179 | 179 | 234 | 246 | 179 | 246 | 246 | 246 | 246 | 292 | 246 | 246 | 305 | 167 | 51 | 548 | 792 | 626 | 51 | 179 |
Best forecast wave conditions in Anglesy | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
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