Surf Forecasts:
How big are the waves at Llanddwyn Island today (21 Sep):
- Morning surf: Morning surf (21 Sep, local time) - 2ft (0.6m), 4s period with SSW swell.
- Afternoon surf: Afternoon surf (21 Sep, local time) - 1.5ft (0.5m), 4s period with SW swell.
- Evening surf: Evening surf (21 Sep, local time) - 1.5ft (0.4m), 3s period with SW swell.
The current surf forecast for Llanddwyn Island at 8PM is: 0.4m 3s primary swell from a Southwest direction and 0.1m 5s secondary swell from a Southwest direction (forecast issued at 12:00pm September 21). The wind direction is predicted to be cross-onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Sep) | 2ft (0.6m) | 4s |
| Afternoon (21 Sep) | 1.5ft (0.5m) | 4s |
| Evening (21 Sep) | 1.5ft (0.4m) | 3s |
Table - waves today at Llanddwyn Island. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 5mm), mostly falling on Wed morning. Very mild (max 18°C on Tue afternoon, min 12°C on Wed morning). Wind will be generally light. | |||||||||||||||||||||
Mon 21 | Tuesday 22 | Wednesday 23 | |||||||||||||||||||
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 | SW 4 | SW 4 | SW 4 | SW 3 | SSW 3 | SSW 4 | SW 4 | SSW 4 | SW 4 | W 12 | W 12 | W 18 | W 17 | W 16 | SW 15 | SW 15 | W 14 | W 13 | WNW 4 | W 12 |
Wave Graph  | |||||||||||||||||||||
 kJ | 10 | 7 | 3 | 3 | 2 | 4 | 5 | 6 | 5 | 3 | 3 | 3 | 6 | 6 | 5 | 9 | 8 | 4 | 3 | 1 | 3 |
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 | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-off | cross-off | cross-off | cross-off | cross-off | off |
High Tide | 7:09PM3.00m | 7:45AM2.94m | 7:57PM3.28m | 8:24AM3.18m | 8:32PM3.56m | ||||||||||||||||
Low Tide | 1:01PM1.56m | 1:44AM1.28m | 1:57PM1.28m | 2:29AM0.97m | 2:38PM0.99m | ||||||||||||||||
 | | |  |  |  | | | | | |  |  | |  |  |  | | | | | |
 | 7:00 | — | — | — | — | — | — | 7:01 | — | — | — | — | — | — | — | 7:03 | — | — | — | — | — |
 | — | — | — | 7:20 | — | — | — | — | — | — | — | 7:16 | — | — | — | — | — | — | — | 7:15 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 3 | — | — | — | — |
Temp °C | 14 | 15 | 17 | 17 | 17 | 17 | 16 | 16 | 17 | 17 | 18 | 17 | 17 | 17 | 17 | 14 | 12 | 13 | 14 | 13 | 13 |
Feels °C | 12 | 13 | 17 | 17 | 17 | 16 | 15 | 15 | 16 | 16 | 17 | 16 | 16 | 16 | 16 | 13 | 9 | 8 | 9 | 10 | 12 |
Swell 1 Height (m) Direction Period (s) | — | SW 6 | SW 6 | SW 5 | SW 5 | SW 5 | W 6 | — | — | — | W 6 | W 6 | W 5 | W 17 | W 16 | SW 3 | SW 15 | W 14 | W 13 | WNW 4 | NW 5 |
| kJ | — | 1 | 1 | 1 | 1 | 1 | 1 | — | — | — | 1 | 1 | 1 | 6 | 5 | 3 | 8 | 4 | 3 | 1 | 5 |
Swell 2 Height (m) Direction Period (s) | W 13 | — | — | — | — | — | — | — | — | SW 6 | W 12 | W 12 | W 18 | W 12 | W 12 | SW 15 | SW 8 | — | — | NNW 5 | W 7 |
| kJ | 3 | — | — | — | — | — | — | — | — | 1 | 3 | 3 | 6 | 3 | 3 | 9 | 3 | — | — | 2 | 1 |
Swell 3 Height (m) Direction Period (s) | — | — | W 13 | — | — | — | — | — | — | W 12 | W 12 | W 12 | W 12 | W 5 | W 6 | SW 6 | W 11 | W 6 | — | W 7 | W 12 |
| kJ | — | — | 3 | — | — | — | — | — | — | 3 | 3 | 3 | 3 | 1 | 1 | 1 | 2 | 1 | — | 1 | 3 |
Wind waves Height (m) Direction Period (s) | SSW 4 | SW 4 | SW 4 | SW 4 | SW 3 | SSW 3 | SSW 4 | SW 4 | SSW 4 | SW 4 | SW 4 | SW 3 | SW 3 | SW 3 | SW 3 | NW 3 | NNW 4 | NNW 5 | NNW 4 | N 4 | — |
| kJ | 10 | 7 | 3 | 3 | 2 | 4 | 5 | 6 | 5 | 3 | 2 | 2 | 2 | 3 | 4 | 4 | 22 | 15 | 11 | 4 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 267 | 272 | 267 | 267 | 251 | 251 | 251 | 251 | 171 | 218 | 175 | 162 | 151 | 162 | 162 | 164 | 175 | 175 | 175 | 166 | 162 |
Best forecast wave conditions in Anglesy | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
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