Surf Forecasts:
How big are the waves at Llanddwyn Island today (31 Jul):
- Morning surf: Morning surf (31 Jul, local time) - 1.5ft (0.5m), 4s period with W swell.
- Afternoon surf: Afternoon surf (31 Jul, local time) - 1.5ft (0.5m), 3s period with SW swell.
- Evening surf: Evening surf (31 Jul, local time) - 2.5ft (0.8m), 5s period with SW swell.
The current surf forecast for Llanddwyn Island at 9AM is: 0.5m 4s primary swell from a West direction and 0.3m 5s secondary swell from a Southwest direction (forecast issued at 12:00am July 31). The wind direction is predicted to be cross-onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 Jul) | 1.5ft (0.5m) | 4s |
| Afternoon (31 Jul) | 1.5ft (0.5m) | 3s |
| Evening (31 Jul) | 2.5ft (0.8m) | 5s |
Table - waves today at Llanddwyn Island. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Very mild (max 19°C on Sun morning, min 13°C on Thu night). Wind will be generally light. | ||||||||||||||||||||||||
Friday 31 | Saturday 1 | Sunday 2 | ||||||||||||||||||||||
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 4 | NW 3 | SW 5 | SW 5 | W 4 | SW 3 | SW 4 | WSW 5 | SW 5 | SW 5 | SW 5 | SW 5 | W 4 | SW 5 | SW 4 | W 9 | SW 4 | W 9 | WSW 4 | W 8 | W 8 | W 8 | SW 8 | SW 8 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 1 | 2 | 3 | 6 | 4 | 4 | 14 | 48 | 23 | 14 | 10 | 6 | 7 | 4 | 3 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 3 | 3 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross | cross-on | cross-on | cross-on | on | on | cross-on | cross | cross | cross | cross-on | cross-on | on | on | cross-on | cross-on | cross-off | cross-off | cross-off | glassy | cross-off | off | off |
High Tide | 11:01PM4.02m | 11:19AM3.63m | 11:31PM4.09m | 11:49AM3.65m | 00:00AM4.10m | 12:20PM3.64m | ||||||||||||||||||
Low Tide | 5:48AM0.25m | 5:54PM0.38m | 6:22AM0.21m | 6:28PM0.40m | 6:57AM0.24m | 7:04PM0.48m | ||||||||||||||||||
 |  |  | | | | | | | | | | | |  | |  | |  | | | | | | |
 | — | 5:31 | — | — | — | — | — | — | — | 5:33 | — | — | — | — | — | — | — | 5:35 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 9:14 | — | — | — | — | — | — | — | 9:13 | — | — | — | — | — | — | — | 9:10 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 14 | 13 | 14 | 15 | 16 | 17 | 16 | 14 | 13 | 13 | 13 | 14 | 16 | 16 | 15 | 14 | 14 | 14 | 17 | 19 | 19 | 18 | 16 |
Feels °C | 13 | 12 | 11 | 11 | 11 | 11 | 13 | 13 | 12 | 10 | 11 | 10 | 11 | 13 | 14 | 13 | 12 | 12 | 12 | 16 | 18 | 17 | 15 | 12 |
Swell 1 Height (m) Direction Period (s) | SW 4 | SW 4 | SW 5 | SW 5 | — | — | — | SW 5 | SW 5 | SW 5 | SW 5 | SW 5 | — | NW 4 | — | WSW 4 | SW 4 | WSW 4 | WSW 4 | — | — | — | SW 8 | SW 8 |
| kJ | 1 | 1 | 3 | 5 | — | — | — | 26 | 23 | 14 | 10 | 6 | — | 2 | — | 2 | 2 | 1 | 1 | — | — | — | 3 | 3 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | W 12 | W 11 | W 10 | — | NW 4 | W 9 | W 9 | — | — | W 9 | W 8 | W 8 | W 8 | W 8 | — | — |
| kJ | — | — | — | — | — | — | — | — | 3 | 2 | 2 | — | 4 | 2 | 2 | — | — | 1 | 1 | 1 | 1 | 1 | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | W 9 | W 9 | W 9 | W 9 | W 9 | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 2 | 2 | 2 | 2 | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | NW 3 | NW 3 | W 4 | W 4 | SW 3 | SW 4 | WSW 5 | NW 3 | NW 3 | NW 4 | NW 4 | W 4 | SW 5 | SW 4 | — | — | — | — | — | — | — | N 2 | NNE 2 |
| kJ | — | 2 | 3 | 6 | 4 | 4 | 14 | 48 | 1 | 3 | 4 | 4 | 7 | 4 | 3 | — | — | — | — | — | — | — | 1 | 1 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 267 | 304 | 162 | 313 | 1089 | 617 | 617 | 222 | 299 | 162 | 170 | 344 | 344 | 355 | 355 | 272 | 267 | 273 | 267 | 267 | 273 | 270 | 270 | 251 |
Best forecast wave conditions in Anglesy | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
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