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Llantwit Major Surf Forecast
/ Wales – South East (14 surf breaks) /
Surf Forecasts:
Llantwit Major surfForecast / Wales – South East / UK
48hr Weather and Surf, issued 12 am Tuesday 12 May 2026 BSTForecast update in hr min s Forecast update imminent
Llantwit Major surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Llantwit Major sea temperature is
12.1° C
(Which is 1.1°C warmer than normal for this time of year)How big are the waves at Llantwit Major today?
The current surf forecast for Llantwit Major at 5AM is: 0.3m 4s primary swell from a West-northwest direction and 0.1m 9s secondary swell from a West direction (forecast issued at 12:00am May 12). The wind direction is predicted to be cross-shore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 May) | 1ft (0.3m) | 4s |
| Afternoon (12 May) | 2.5ft (0.7m) | 4s |
| Evening (12 May) | 1.5ft (0.5m) | 4s |
Table - waves today at Llantwit Major. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 4mm), mostly falling on Wed afternoon. Very mild (max 13°C on Tue afternoon, min 7°C on Mon night). Winds increasing (light winds from the NW on Mon night, strong winds from the WNW by Wed morning). | ||||||||||||||||||||||||
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 |    |    |    | |||||||||||||||||||||
WNW 4 | WNW 4 | WNW 4 | WNW 4 | WNW 4 | WNW 4 | WNW 4 | WNW 4 | W 5 | W 6 | W 6 | WNW 7 | W 7 | W 7 | W 7 | W 7 | W 7 | WNW 7 | WNW 7 | WNW 7 | WNW 7 | WNW 7 | WNW 7 | WNW 6 | |
7 | 3 | 3 | 3 | 10 | 18 | 20 | 11 | 17 | 101 | 196 | 342 | 447 | 447 | 358 | 239 | 176 | 214 | 252 | 236 | 206 | 171 | 137 | 88 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-on | cross | cross | cross | cross | cross | cross | cross | cross-off | cross-off | cross-off | |
High Tide | 3:20AM7.21m | 3:57PM7.28m | 4:22AM7.79m | 4:53PM7.97m | 5:15AM8.48m | 5:42PM8.70m | ||||||||||||||||||
Low Tide | 9:41AM2.50m | 10:05PM2.43m | 10:37AM1.94m | 10:58PM1.85m | 11:25AM1.36m | |||||||||||||||||||
 |  |  | |  |  | | | | | | | | |  | | | | | |  | | |  | |
 | — | 5:28 | — | — | — | — | — | — | — | 5:26 | — | — | — | — | — | — | — | 5:24 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 8:52 | — | — | — | — | — | — | — | 8:54 | — | — | — | — | — | — | — | 8:55 | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | 1 | 1 | 1 | 1 | |
Temp °C | 8 | 7 | 8 | 11 | 12 | 12 | 13 | 11 | 9 | 9 | 10 | 10 | 10 | 11 | 11 | 9 | 8 | 9 | 9 | 10 | 11 | 11 | 11 | 9 |
5 | 3 | 4 | 6 | 6 | 6 | 8 | 5 | 2 | 0 | 0 | 0 | 1 | 2 | 4 | 3 | 2 | 2 | 2 | 2 | 4 | 4 | 5 | 5 | |
Swell 1 Height (m) Direction Period (s) | WNW 4 | WNW 4 | WNW 4 | W 9 | W 9 | — | W 8 | WNW 4 | W 12 | — | — | — | — | — | W 16 | W 16 | — | — | — | — | — | — | WNW 7 | WNW 6 |
 kJ | 7 | 3 | 3 | 2 | 2 | — | 1 | 11 | 3 | — | — | — | — | — | 5 | 5 | — | — | — | — | — | — | 137 | 88 |
Swell 2 Height (m) Direction Period (s) | W 9 | W 9 | W 9 | — | — | — | — | W 8 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 2 | 2 | 2 | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | W 18 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | WNW 4 | WNW 4 | WNW 4 | WNW 4 | W 4 | W 5 | W 6 | W 6 | WNW 7 | W 7 | W 7 | W 7 | W 7 | W 7 | WNW 7 | WNW 7 | WNW 7 | WNW 7 | WNW 7 | — | — |
| kJ | — | — | — | 3 | 10 | 18 | 20 | 9 | 17 | 101 | 196 | 342 | 447 | 447 | 358 | 239 | 176 | 214 | 252 | 236 | 206 | 171 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 271 | 196 | 263 | 214 | 331 | 383 | 421 | 379 | 336 | 382 | 382 | 795 | 1145 | 832 | 800 | 410 | 133 | 410 | 410 | 184 | 179 | 330 | 163 | 32 |
Best forecast wave conditions in Wales - South East | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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