Surf Forecasts:
How big are the waves at Trearddur Bay (Holy Island) today (22 Sep):
- Morning surf: Morning surf (22 Sep, local time) - 1.5ft (0.5m), 4s period with SW swell.
- Afternoon surf: Afternoon surf (22 Sep, local time) - 1.5ft (0.4m), 3s period with SSW swell.
- Evening surf: Evening surf (22 Sep, local time) - 1.5ft (0.4m), 3s period with SSW swell.
The current surf forecast for Trearddur Bay (Holy Island) at 9AM is: 0.5m 4s primary swell from a Southwest direction (forecast issued at 12:00am September 22). The wind direction is predicted to be cross-onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (22 Sep) | 1.5ft (0.5m) | 4s |
| Afternoon (22 Sep) | 1.5ft (0.4m) | 3s |
| Evening (22 Sep) | 1.5ft (0.4m) | 3s |
Table - waves today at Trearddur Bay (Holy Island). (Swell directed towards the surf break)
Short Range ForecastLight rain (total 2mm), mostly falling on Tue night. Very mild (max 18°C on Tue afternoon, min 12°C on Wed morning). Winds increasing (light winds from the ENE on Wed night, fresh winds from the S by Thu morning). | ||||||||||||||||||||||||
Tuesday 22 | Wednesday 23 | Thursday 24 | ||||||||||||||||||||||
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 4 | SSW 4 | SSW 4 | SSW 4 | SSW 4 | S 12 | S 12 | SW 3 | SW 4 | SW 4 | SW 4 | SW 15 | W 14 | SW 12 | SW 12 | S 12 | N 4 | N 4 | S 3 | S 4 | SSW 5 | SSW 5 | SSW 5 | SSW 5 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 13 | 13 | 10 | 6 | 5 | 4 | 4 | 5 | 12 | 10 | 9 | 8 | 4 | 6 | 6 | 3 | 0 | 0 | 5 | 35 | 91 | 70 | 52 | 39 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-off | cross-off | cross-off | cross-off | off | off | cross-off | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 8:39AM4.39m | 8:44PM4.77m | 9:21AM4.69m | 9:25PM5.08m | 9:54AM4.96m | 9:59PM5.36m | ||||||||||||||||||
Low Tide | 2:15AM2.16m | 2:33PM2.24m | 3:02AM1.80m | 3:15PM1.89m | 3:38AM1.45m | 3:49PM1.55m | ||||||||||||||||||
 | |  |  | |  | |  | | |  |  |  | | | | | | | | | | | | |
 | — | — | 7:03 | — | — | — | — | — | — | — | 7:03 | — | — | — | — | — | — | — | 7:05 | — | — | — | — | — |
 | — | — | — | — | — | — | 7:17 | — | — | — | — | — | — | — | 7:15 | — | — | — | — | — | — | — | 7:13 | — |
mm | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 16 | 16 | 16 | 17 | 18 | 18 | 18 | 18 | 18 | 13 | 12 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 15 | 16 | 16 | 16 |
Feels °C | 14 | 13 | 14 | 14 | 15 | 16 | 16 | 15 | 15 | 15 | 9 | 7 | 8 | 8 | 11 | 12 | 11 | 11 | 9 | 7 | 9 | 11 | 11 | 12 |
Swell 1 Height (m) Direction Period (s) | — | — | — | — | — | S 12 | S 12 | S 12 | SW 17 | SW 16 | SW 4 | SSW 4 | SW 4 | — | N 4 | NNW 4 | N 4 | N 4 | N 4 | — | — | — | — | — |
| kJ | — | — | — | — | — | 3 | 3 | 3 | 12 | 10 | 5 | 1 | 1 | — | 15 | 6 | 3 | 1 | 1 | — | — | — | — | — |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | W 5 | W 5 | — | SW 12 | SW 12 | SW 15 | SW 15 | S 12 | SW 12 | — | S 12 | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | 1 | 1 | — | 6 | 6 | 9 | 8 | 3 | 6 | — | 3 | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | W 5 | — | — | SW 12 | SW 12 | W 14 | S 12 | SW 12 | — | — | — | W 6 | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | 1 | — | — | 6 | 6 | 4 | 3 | 6 | — | — | — | 1 | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SSW 4 | SSW 4 | SSW 4 | SSW 4 | SSW 4 | SSW 3 | SSW 3 | SW 3 | SW 4 | SW 4 | NNW 3 | N 5 | N 5 | N 5 | — | — | — | — | S 3 | S 4 | SSW 5 | SSW 5 | SSW 5 | SSW 5 |
| kJ | 13 | 13 | 10 | 6 | 5 | 4 | 4 | 5 | 9 | 7 | 7 | 27 | 28 | 21 | — | — | — | — | 5 | 35 | 91 | 70 | 52 | 39 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 246 | 246 | 246 | 184 | 182 | 192 | 179 | 179 | 179 | 179 | 179 | 179 | 192 | 192 | 178 | 161 | 163 | 179 | 186 | 186 | 235 | 235 | 238 | 240 |
Best forecast wave conditions in Anglesy | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
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