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Llanddwyn Island Surf Forecast
/ Wales – Anglesy (10 surf breaks) /
Surf Forecasts:
Llanddwyn Island surfForecast / Wales – Anglesy / UK
48hr Weather and Surf, issued 6 am Saturday 30 May 2026 BSTForecast update in hr min s Forecast update imminent
Llanddwyn Island surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Llanddwyn Island sea temperature is
13.5° C
(Which is 1.9°C warmer than normal for this time of year)How big are the waves at Llanddwyn Island today (30 May):
- Morning surf: Morning surf (30 May, local time) - 2ft (0.6m), 4s period with SSW swell.
- Afternoon surf: Afternoon surf (30 May, local time) - 1.5ft (0.5m), 4s period with SW swell.
- Evening surf: Evening surf (30 May, local time) - 2.5ft (0.7m), 4s period with SW swell.
The current surf forecast for Llanddwyn Island at 11AM is: 0.6m 4s primary swell from a South-southwest direction and 0.2m 10s secondary swell from a West-southwest direction, 0.1m 15s secondary swell from a Southwest direction (forecast issued at 06:00am May 30). The wind direction is predicted to be cross-onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (30 May) | 2ft (0.6m) | 4s |
| Afternoon (30 May) | 1.5ft (0.5m) | 4s |
| Evening (30 May) | 2.5ft (0.7m) | 4s |
Table - waves today at Llanddwyn Island. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 20mm), heaviest during Mon afternoon. Very mild (max 15°C on Sat morning, min 12°C on Sat night). Wind will be generally light. | ||||||||||||||||||||||||
Saturday 30 | Sunday 31 | Monday 1 | Tue 2 | |||||||||||||||||||||
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 | 1 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SW 5 | SW 4 | SSW 4 | SSW 4 | SW 4 | SSW 4 | SW 4 | SW 5 | SW 5 | SW 12 | SW 12 | SW 12 | SW 12 | SW 11 | SW 11 | SW 5 | SW 5 | SW 5 | SSW 5 | SSW 5 | SSW 5 | SW 5 | SW 5 | SW 6 | |
23 | 16 | 12 | 11 | 8 | 11 | 18 | 31 | 33 | 37 | 36 | 35 | 35 | 33 | 33 | 26 | 42 | 47 | 50 | 48 | 46 | 57 | 72 | 69 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | |
High Tide | 9:25AM3.63m | 9:43PM3.74m | 10:03AM3.65m | 10:18PM3.78m | 10:40AM3.62m | 10:54PM3.79m | ||||||||||||||||||
Low Tide | 3:58AM0.59m | 4:14PM0.59m | 4:35AM0.52m | 4:50PM0.60m | 5:12AM0.49m | 5:25PM0.63m | ||||||||||||||||||
 |  | |  | | |  |  | | | | | | | | | |  | | | |  | | | |
 | 4:58 | — | — | — | — | — | — | — | 4:58 | — | — | — | — | — | — | — | 4:58 | — | — | — | — | — | — | 4:56 |
 | — | — | — | — | — | 9:30 | — | — | — | — | — | — | — | 9:31 | — | — | — | — | — | — | — | 9:32 | — | 9:34 |
— | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | 1 | 1 | 3 | 4 | 7 | 1 | — | |
Temp °C | 12 | 12 | 14 | 15 | 15 | 14 | 13 | 13 | 13 | 12 | 13 | 14 | 15 | 14 | 13 | 13 | 12 | 12 | 13 | 13 | 14 | 14 | 13 | 13 |
9 | 9 | 11 | 11 | 11 | 10 | 9 | 11 | 10 | 10 | 10 | 11 | 12 | 11 | 11 | 10 | 9 | 8 | 9 | 9 | 11 | 11 | 10 | 10 | |
Swell 1 Height (m) Direction Period (s) | SW 11 | SW 11 | WSW 9 | WSW 10 | WSW 8 | SW 14 | WSW 13 | WSW 12 | WSW 12 | SW 12 | SW 5 | SW 12 | SW 12 | SW 11 | SW 11 | WSW 11 | WSW 11 | WSW 11 | WSW 11 | WSW 11 | WSW 11 | WSW 10 | SW 10 | SW 10 |
 kJ | 5 | 4 | 9 | 9 | 7 | 7 | 17 | 30 | 29 | 37 | 18 | 35 | 35 | 33 | 33 | 25 | 24 | 12 | 12 | 11 | 11 | 10 | 4 | 4 |
Swell 2 Height (m) Direction Period (s) | SW 16 | SW 16 | SW 16 | SW 14 | SW 14 | SW 8 | SW 7 | WSW 9 | — | — | SW 12 | — | — | — | SW 8 | — | — | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 |
| kJ | 10 | 10 | 10 | 8 | 8 | 2 | 2 | 8 | — | — | 36 | — | — | — | 2 | — | — | 8 | 8 | 8 | 8 | 8 | 8 | 8 |
Swell 3 Height (m) Direction Period (s) | SW 16 | W 9 | SW 16 | SW 15 | SW 14 | — | W 9 | — | — | — | — | — | — | — | — | — | — | — | — | W 14 | — | — | — | — |
| kJ | 10 | 2 | 10 | 9 | 8 | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — | 4 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SW 5 | SW 4 | SSW 4 | SSW 4 | SW 4 | SSW 4 | SW 4 | SW 5 | SW 5 | SW 5 | — | SW 5 | SW 5 | SW 5 | SW 4 | SW 5 | SW 5 | SW 5 | SSW 5 | SSW 5 | SSW 5 | SW 5 | SW 5 | SW 6 |
| kJ | 23 | 16 | 12 | 11 | 7 | 11 | 18 | 31 | 33 | 22 | — | 20 | 17 | 16 | 16 | 26 | 42 | 47 | 50 | 48 | 46 | 57 | 72 | 69 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 144 | 162 | 162 | 291 | 35 | 239 | 159 | 95 | 159 | 35 | 35 | 310 | 327 | 311 | 95 | 95 | 95 | 38 | 185 | 187 | 275 | 216 | 239 | 164 |
Best forecast wave conditions in Anglesy | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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