Surf Forecasts:
How big are the waves at Llantwit Major today (17 Aug):
- Afternoon surf: Afternoon surf (17 Aug, local time) - 2.5ft (0.7m), 6s period with W swell.
- Evening surf: Evening surf (17 Aug, local time) - 2ft (0.6m), 6s period with W swell.
The current surf forecast for Llantwit Major at 10PM is: 0.6m 6s primary swell from a West direction and 0.3m 7s secondary swell from a West direction (forecast issued at 06:00pm August 17). The wind direction is predicted to be cross-onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Aug) | - | - |
| Afternoon (17 Aug) | 2.5ft (0.7m) | 6s |
| Evening (17 Aug) | 2ft (0.6m) | 6s |
Table - waves today at Llantwit Major. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 6mm), mostly falling on Tue night. Very mild (max 19°C on Mon afternoon, min 14°C on Wed night). Mainly fresh winds. | |||||||||||||||||||
Mon 17 | Tuesday 18 | Wednesday 19 | |||||||||||||||||
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) | W 6 | W 6 | W 6 | W 7 | W 5 | W 6 | W 7 | W 6 | W 6 | W 6 | W 6 | W 6 | W 6 | W 7 | W 6 | W 6 | W 6 | W 6 | W 7 |
Wave Graph  | |||||||||||||||||||
 kJ | 30 | 39 | 22 | 38 | 28 | 57 | 107 | 84 | 76 | 75 | 48 | 48 | 65 | 71 | 80 | 75 | 88 | 109 | 127 |
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 | cross-on | cross-on | cross-on | cross-on | on |
High Tide | 10:44PM9.09m | 11:03AM8.57m | 11:22PM8.36m | 11:41AM7.90m | |||||||||||||||
Low Tide | 4:28PM0.92m | 4:49AM1.20m | 5:03PM1.47m | 5:24AM1.81m | 5:41PM2.10m | ||||||||||||||
 |  |  | |  |  | | | | | |  |  | |  | | | | | |
 | — | — | — | — | 6:03 | — | — | — | — | — | — | — | 6:05 | — | — | — | — | — | — |
 | — | 8:32 | — | — | — | — | — | — | — | 8:30 | — | — | — | — | — | — | — | 8:29 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — | 1 | 1 | — | — | 1 |
Temp °C | 19 | 18 | 16 | 17 | 18 | 18 | 18 | 19 | 18 | 18 | 17 | 16 | 15 | 15 | 17 | 18 | 18 | 17 | 16 |
Feels °C | 16 | 14 | 13 | 14 | 16 | 17 | 15 | 15 | 13 | 14 | 14 | 15 | 13 | 13 | 13 | 13 | 13 | 12 | 12 |
Swell 1 Height (m) Direction Period (s) | W 8 | — | W 7 | W 7 | — | W 7 | — | — | — | — | — | W 6 | W 6 | W 7 | — | W 9 | — | — | — |
| kJ | 6 | — | 10 | 4 | — | 4 | — | — | — | — | — | 48 | 65 | 71 | — | 7 | — | — | — |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | W 6 | W 6 | W 6 | W 7 | W 5 | W 6 | W 7 | W 6 | W 6 | W 6 | W 6 | — | W 6 | — | W 6 | W 6 | W 6 | W 6 | W 7 |
| kJ | 30 | 39 | 22 | 38 | 28 | 57 | 107 | 84 | 76 | 75 | 48 | — | 37 | — | 80 | 75 | 88 | 109 | 127 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 488 | 510 | 131 | 349 | 274 | 88 | 173 | 799 | 798 | 342 | 136 | 88 | 300 | 300 | 300 | 286 | 300 | 309 | 173 |
Best forecast wave conditions in Wales - South East | |||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||
Header Global | |||||||||||||||||||
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