Surf Forecasts:
How big are the waves at Llantwit Major today (18 Sep):
- Morning surf: Morning surf (18 Sep, local time) - 4ft (1.2m), 7s period with W swell.
- Afternoon surf: Afternoon surf (18 Sep, local time) - 4.5ft (1.3m), 6s period with W swell.
- Evening surf: Evening surf (18 Sep, local time) - 5.5ft (1.7m), 7s period with W swell.
The current surf forecast for Llantwit Major at 5PM is: 1.5m 6s primary swell from a West direction (forecast issued at 12:00pm September 18). The wind direction is predicted to be onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Sep) | 4ft (1.2m) | 7s |
| Afternoon (18 Sep) | 4.5ft (1.3m) | 6s |
| Evening (18 Sep) | 5.5ft (1.7m) | 7s |
Table - waves today at Llantwit Major. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 2mm), mostly falling on Sat morning. Very mild (max 18°C on Sat morning, min 14°C on Sat night). Winds decreasing (strong winds from the WSW on Fri afternoon, light winds from the WNW by Sun night). | |||||||||||||||||||||
Fri 18 | Saturday 19 | Sunday 20 | |||||||||||||||||||
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) | W 7 | W 7 | W 6 | W 7 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 7 | W 7 | W 7 | W 10 | W 10 | W 9 | W 9 | W 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 113 | 128 | 132 | 229 | 332 | 310 | 310 | 302 | 346 | 359 | 326 | 229 | 138 | 85 | 87 | 67 | 149 | 118 | 83 | 58 | 57 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | on | on | on | cross-on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross-on | cross-on | cross-on |
High Tide | 11:37AM7.28m | 00:01AM6.82m | 12:27PM6.60m | 1:05AM6.19m | 1:52PM6.13m | ||||||||||||||||
Low Tide | 5:40PM2.75m | 6:03AM3.13m | 6:41PM3.37m | 7:20AM3.64m | 8:22PM3.70m | ||||||||||||||||
 | | | |  | |  | |  |  |  | | | | | | |  | | |  | |
 | 6:52 | — | — | — | — | — | 6:54 | — | — | — | — | — | — | — | 6:54 | — | — | — | — | — | — |
 | — | — | — | 7:22 | — | — | — | — | — | — | — | 7:20 | — | — | — | — | — | — | — | 7:17 | — |
mm | — | — | — | — | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 16 | 15 | 16 | 17 | 17 | 17 | 16 | 17 | 18 | 18 | 17 | 16 | 16 | 15 | 14 | 14 | 15 | 16 | 15 | 14 |
Feels °C | 11 | 10 | 8 | 9 | 12 | 12 | 12 | 11 | 12 | 13 | 13 | 13 | 12 | 12 | 12 | 11 | 11 | 12 | 13 | 13 | 12 |
Swell 1 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | W 8 | W 8 | W 10 | W 10 | W 7 | W 10 | W 10 | W 9 | W 9 | W 9 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 229 | 138 | 47 | 48 | 67 | 149 | 118 | 83 | 58 | 57 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | W 10 | — | WSW 10 | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | 18 | — | 32 | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | W 7 | W 7 | W 6 | W 7 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | — | — | W 7 | W 7 | — | — | — | — | — | — |
| kJ | 113 | 128 | 132 | 229 | 332 | 310 | 310 | 302 | 346 | 359 | 326 | — | — | 85 | 87 | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 395 | 355 | 355 | 355 | 300 | 300 | 286 | 286 | 300 | 355 | 191 | 191 | 84 | 187 | 39 | 15 | 39 | 39 | 58 | 58 | 64 |
Best forecast wave conditions in Wales - South East | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
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