Surf Forecasts:
How big are the waves at Trefor today (15 Sep):
- Morning surf: Morning surf (15 Sep, local time) - 4.5ft (1.3m), 5s period with WSW swell.
- Afternoon surf: Afternoon surf (15 Sep, local time) - 4ft (1.2m), 5s period with WSW swell.
- Evening surf: Evening surf (15 Sep, local time) - 3ft (0.9m), 5s period with NW swell.
The current surf forecast for Trefor at 6PM is: 0.8m 5s primary swell from a Southwest direction and 0.8m 5s secondary swell from a West-northwest direction (forecast issued at 12:00pm September 15). The wind direction is predicted to be cross-onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (15 Sep) | 4.5ft (1.3m) | 5s |
| Afternoon (15 Sep) | 4ft (1.2m) | 5s |
| Evening (15 Sep) | 3ft (0.9m) | 5s |
Table - waves today at Trefor. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 8mm), mostly falling on Wed night. Very mild (max 16°C on Tue afternoon, min 13°C on Tue night). Mainly fresh winds. | |||||||||||||||||||||
Tue 15 | Wednesday 16 | Thursday 17 | |||||||||||||||||||
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) | WSW 5 | W 5 | WSW 5 | SW 5 | NW 5 | NW 5 | NW 5 | NW 5 | WNW 5 | WNW 5 | W 5 | WSW 4 | NW 4 | SW 5 | WSW 6 | WSW 7 | WSW 5 | W 5 | W 5 | W 6 | W 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 102 | 78 | 66 | 34 | 37 | 38 | 66 | 42 | 37 | 49 | 28 | 22 | 1 | 0 | 238 | 198 | 117 | 114 | 134 | 141 | 144 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross-on | cross-on | on | on | on | on | cross-on | cross-on | cross | cross-off | cross-off | cross-off | cross | cross-on | cross-on | cross | cross | cross-on | cross-on |
High Tide | 11:44AM3.56m | 00:04AM3.55m | 12:20PM3.34m | 00:42AM3.21m | 12:57PM3.07m | ||||||||||||||||
Low Tide | 6:39PM0.45m | 6:59AM0.67m | 7:14PM0.73m | 7:32AM0.99m | 7:53PM1.02m | ||||||||||||||||
 | |  | |  |  |  |  | | | | | |  | |  | | | | |  | |
 | 6:50 | — | — | — | — | — | 6:52 | — | — | — | — | — | — | — | 6:52 | — | — | — | — | — | — |
 | — | — | — | 7:34 | — | — | — | — | — | — | — | 7:31 | — | — | — | — | — | — | — | 7:29 | — |
mm | — | — | 1 | 2 | 1 | — | — | — | — | — | — | — | — | 1 | 3 | — | — | — | — | — | — |
Temp °C | 15 | 15 | 16 | 16 | 15 | 14 | 13 | 14 | 14 | 14 | 15 | 15 | 15 | 14 | 15 | 14 | 14 | 14 | 15 | 15 | 14 |
Feels °C | 10 | 10 | 12 | 12 | 11 | 9 | 8 | 9 | 9 | 9 | 11 | 10 | 10 | 8 | 10 | 9 | 7 | 7 | 9 | 9 | 7 |
Swell 1 Height (m) Direction Period (s) | — | — | — | SW 5 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | W 11 | W 11 | NNW 5 | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | 34 | 29 | 18 | 12 | 8 | 8 | 2 | 2 | 9 | — | — | — | — | — | — | — | — | — |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | W 11 | — | — | SW 11 | SW 11 | WSW 10 | — | — | NW 4 | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | 2 | — | — | 5 | 5 | 9 | — | — | 1 | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | WSW 5 | W 5 | WSW 5 | WNW 5 | NW 5 | NW 5 | NW 5 | NW 5 | WNW 5 | WNW 5 | W 5 | WSW 4 | SW 4 | SW 5 | WSW 6 | WSW 7 | WSW 5 | W 5 | W 5 | W 6 | W 6 |
| kJ | 102 | 78 | 66 | 27 | 37 | 38 | 66 | 42 | 37 | 49 | 28 | 22 | 36 | 126 | 238 | 198 | 117 | 114 | 134 | 141 | 144 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 517 | 572 | 517 | 1165 | 149 | 149 | 149 | 149 | 149 | 149 | 283 | 296 | 287 | 297 | 276 | 290 | 297 | 805 | 805 | 579 | 345 |
Best forecast wave conditions in Lleyn Peninsula | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
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