Surf Forecasts:
How big are the waves at Llantwit Major today (17 Sep):
- Morning surf: Morning surf (17 Sep, local time) - 5ft (1.5m), 7s period with W swell.
- Afternoon surf: Afternoon surf (17 Sep, local time) - 5ft (1.5m), 8s period with W swell.
- Evening surf: Evening surf (17 Sep, local time) - 4.5ft (1.3m), 7s period with W swell.
The current surf forecast for Llantwit Major at 6PM is: 1.4m 7s primary swell from a West direction (forecast issued at 12:00pm September 17). The wind direction is predicted to be cross-onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Sep) | 5ft (1.5m) | 7s |
| Afternoon (17 Sep) | 5ft (1.5m) | 8s |
| Evening (17 Sep) | 4.5ft (1.3m) | 7s |
Table - waves today at Llantwit Major. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 2mm), mostly falling on Fri afternoon. Very mild (max 18°C on Sat morning, min 13°C on Thu night). Winds decreasing (fresh winds from the WSW on Fri afternoon, light winds from the WNW by Sat night). | |||||||||||||||||||||
Thu 17 | Friday 18 | Saturday 19 | |||||||||||||||||||
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 8 | W 7 | W 7 | W 7 | W 7 | W 7 | W 7 | W 7 | W 7 | W 5 | W 6 | W 7 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 243 | 217 | 243 | 205 | 167 | 167 | 146 | 126 | 120 | 114 | 92 | 156 | 233 | 294 | 294 | 259 | 259 | 302 | 299 | 193 | 135 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | on | on | on | cross-on | cross-on | on | on | cross-on | cross-on | cross-on | cross-on |
High Tide | 10:59AM8.00m | 11:18PM7.56m | 11:37AM7.28m | 00:01AM6.82m | 12:27PM6.60m | ||||||||||||||||
Low Tide | 4:57PM2.07m | 5:15AM2.48m | 5:40PM2.75m | 6:03AM3.13m | 6:41PM3.37m | ||||||||||||||||
 |  | | |  | |  |  | | | |  |  | | | | |  | | | | |
 | 6:50 | — | — | — | — | — | 6:52 | — | — | — | — | — | — | — | 6:54 | — | — | — | — | — | — |
 | — | — | — | 7:24 | — | — | — | — | — | — | — | 7:22 | — | — | — | — | — | — | — | 7:20 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | 1 | — | — | — |
Temp °C | 15 | 16 | 16 | 15 | 15 | 13 | 13 | 14 | 15 | 16 | 16 | 16 | 17 | 17 | 17 | 17 | 17 | 18 | 18 | 17 | 15 |
Feels °C | 10 | 9 | 9 | 9 | 10 | 9 | 9 | 10 | 10 | 10 | 10 | 10 | 12 | 12 | 12 | 12 | 12 | 12 | 13 | 13 | 11 |
Swell 1 Height (m) Direction Period (s) | — | — | — | — | — | W 9 | W 7 | W 7 | — | — | — | — | — | — | — | — | — | — | — | W 8 | W 8 |
| kJ | — | — | — | — | — | 44 | 146 | 126 | — | — | — | — | — | — | — | — | — | — | — | 193 | 135 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | W 7 | W 8 | W 7 | W 7 | W 7 | W 7 | — | — | W 7 | W 7 | W 5 | W 6 | W 7 | W 8 | W 8 | W 8 | W 8 | W 8 | W 8 | — | — |
| kJ | 243 | 217 | 243 | 205 | 167 | 167 | — | — | 120 | 114 | 92 | 156 | 233 | 294 | 294 | 259 | 259 | 302 | 299 | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 392 | 349 | 349 | 349 | 349 | 48 | 136 | 146 | 300 | 355 | 355 | 355 | 300 | 286 | 286 | 286 | 300 | 300 | 316 | 316 | 134 |
Best forecast wave conditions in Wales - South East | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
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