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Surf Forecasts:
Llandanwg surfForecast / Wales – Mid / UK
48hr Weather and Surf, issued 12 am Tuesday 12 May 2026 BSTForecast update in hr min s Forecast update imminent
Llandanwg surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Llandanwg sea temperature is
12.5° C
(Which is 2.2°C warmer than normal for this time of year)How big are the waves at Llandanwg today?
The current surf forecast for Llandanwg at 5AM is: 0.1m 9s primary swell from a Southwest direction (forecast issued at 12:00am May 12). The wind direction is predicted to be cross-onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 May) | 1.5ft (0.5m) | 3s |
| Afternoon (12 May) | 3ft (0.9m) | 4s |
| Evening (12 May) | 2.5ft (0.7m) | 4s |
Table - waves today at Llandanwg. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 11mm), heaviest on Tue night. Very mild (max 12°C on Tue afternoon, min 6°C on Mon night). Winds increasing (calm on Mon night, strong winds from the WNW by Tue night). | ||||||||||||||||||||||||
Tuesday 12 | Wednesday 13 | Thursday 14 | ||||||||||||||||||||||
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 |    |    |    | |||||||||||||||||||||
W 9 | SW 9 | SW 9 | WNW 3 | NW 4 | NW 4 | WNW 4 | W 4 | W 5 | W 6 | WNW 6 | WNW 7 | WNW 7 | WNW 6 | WSW 7 | WSW 6 | NW 6 | NW 6 | NW 6 | NW 6 | NW 6 | NW 5 | NW 5 | NW 5 | |
1 | 3 | 3 | 6 | 24 | 29 | 16 | 12 | 70 | 141 | 242 | 268 | 234 | 145 | 35 | 15 | 151 | 183 | 220 | 136 | 90 | 56 | 35 | 14 | |
Wind (km/h) | ||||||||||||||||||||||||
glassy | glassy | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | |
High Tide | 4:52AM3.32m | 5:33PM3.20m | 5:50AM3.63m | 6:23PM3.57m | 6:39AM3.98m | 7:09PM3.96m | ||||||||||||||||||
Low Tide | 11:17PM1.37m | 12:02PM0.99m | 00:17AM1.16m | 12:54PM0.73m | 1:11AM0.91m | 1:43PM0.50m | ||||||||||||||||||
 | |  | |  | | |  | |  |  | |  | | | |  | | | | | |  | | |
 | — | 5:24 | — | — | — | — | — | — | — | 5:22 | — | — | — | — | — | — | — | 5:20 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 9:00 | — | — | — | — | — | — | — | 9:02 | — | — | — | — | — | — | — | 9:05 | — |
— | — | — | — | — | — | — | — | — | 1 | 2 | 1 | 1 | 1 | 1 | — | — | — | 1 | 1 | 1 | 1 | — | — | |
Temp °C | 7 | 6 | 8 | 9 | 11 | 12 | 11 | 11 | 9 | 8 | 8 | 9 | 10 | 10 | 10 | 9 | 8 | 8 | 8 | 9 | 9 | 10 | 11 | 8 |
5 | 4 | 5 | 4 | 4 | 6 | 6 | 5 | 1 | -1 | -1 | 0 | 1 | 2 | 4 | 2 | 2 | 2 | 3 | 3 | 3 | 5 | 6 | 4 | |
Swell 1 Height (m) Direction Period (s) | WNW 3 | — | SW 9 | SW 9 | SW 9 | SW 9 | SW 8 | NNW 5 | — | — | — | — | W 16 | W 16 | WSW 7 | WSW 6 | WSW 6 | WSW 7 | W 16 | W 15 | W 15 | W 15 | W 14 | W 5 |
 kJ | 1 | — | 3 | 3 | 3 | 3 | 3 | 9 | — | — | — | — | 5 | 5 | 35 | 15 | 7 | 4 | 5 | 5 | 4 | 4 | 4 | 1 |
Swell 2 Height (m) Direction Period (s) | W 9 | SW 9 | — | — | — | — | W 18 | — | — | — | — | — | — | — | W 16 | W 16 | W 16 | W 16 | — | — | W 15 | — | — | W 14 |
| kJ | 1 | 3 | — | — | — | — | 6 | — | — | — | — | — | — | — | 5 | 5 | 5 | 5 | — | — | 4 | — | — | 4 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | WNW 3 | NW 4 | NW 4 | WNW 4 | W 4 | W 5 | W 6 | WNW 6 | WNW 7 | WNW 7 | WNW 6 | NW 5 | NW 5 | NW 6 | NW 6 | NW 6 | NW 6 | NW 6 | NW 5 | NW 5 | NW 5 |
| kJ | — | — | — | 6 | 24 | 29 | 16 | 12 | 70 | 141 | 242 | 268 | 234 | 145 | 65 | 83 | 151 | 183 | 220 | 136 | 90 | 56 | 35 | 14 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 226 | 217 | 217 | 294 | 300 | 298 | 298 | 294 | 285 | 294 | 294 | 632 | 1306 | 673 | 643 | 572 | 292 | 572 | 572 | 321 | 318 | 293 | 301 | 138 |
Best forecast wave conditions in Mid Wales | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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