Surf Forecasts:
How big are the waves at Trefor today (17 Sep):
- Morning surf: Morning surf (17 Sep, local time) - 5ft (1.5m), 6s period with W swell.
- Afternoon surf: Afternoon surf (17 Sep, local time) - 5ft (1.5m), 6s period with W swell.
- Evening surf: Evening surf (17 Sep, local time) - 5ft (1.5m), 6s period with W swell.
The current surf forecast for Trefor at 5PM is: 1.5m 6s 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) | 6s |
| Afternoon (17 Sep) | 5ft (1.5m) | 6s |
| Evening (17 Sep) | 5ft (1.5m) | 6s |
Table - waves today at Trefor. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 14mm), heaviest on Fri afternoon. Very mild (max 17°C on Fri night, min 13°C on Thu night). Winds decreasing (strong winds from the SW on Fri afternoon, moderate 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 6 | W 6 | W 6 | W 6 | W 6 | W 6 | W 5 | WSW 5 | NW 5 | NW 5 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 8 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 4 |
Wave Graph  | |||||||||||||||||||||
 kJ | 149 | 136 | 141 | 141 | 138 | 121 | 83 | 59 | 9 | 4 | 527 | 529 | 444 | 479 | 529 | 544 | 297 | 222 | 173 | 131 | 42 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross-on | cross-on | cross-on | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | cross-on | cross-on |
High Tide | 12:57PM3.07m | 1:23AM2.86m | 1:41PM2.78m | 2:17AM2.53m | 2:49PM2.51m | ||||||||||||||||
Low Tide | 7:32AM0.99m | 7:53PM1.02m | 8:12AM1.28m | 8:45PM1.29m | 9:10AM1.50m | ||||||||||||||||
 | |  | |  | |  | | |  |  |  |  |  | | | | | | | | |
 | 6:52 | — | — | — | — | — | 6:54 | — | — | — | — | — | — | — | 6:56 | — | — | — | — | — | — |
 | — | — | — | 7:29 | — | — | — | — | — | — | — | 7:27 | — | — | — | — | — | — | — | 7:23 | — |
mm | — | — | — | — | — | — | — | — | — | — | 7 | 5 | 1 | — | — | — | 1 | — | — | — | — |
Temp °C | 14 | 15 | 15 | 15 | 14 | 13 | 14 | 13 | 14 | 15 | 14 | 16 | 16 | 16 | 16 | 17 | 16 | 16 | 17 | 16 | 15 |
Feels °C | 8 | 9 | 9 | 9 | 7 | 7 | 9 | 9 | 8 | 8 | 6 | 10 | 11 | 11 | 11 | 13 | 11 | 10 | 12 | 12 | 11 |
Swell 1 Height (m) Direction Period (s) | — | — | — | — | — | — | — | NW 5 | NW 5 | NW 5 | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | 10 | 9 | 4 | — | — | — | — | — | — | — | — | — | — | — |
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 6 | W 6 | W 6 | W 5 | WSW 5 | SW 5 | SW 6 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 8 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 4 |
| kJ | 149 | 136 | 141 | 141 | 138 | 121 | 83 | 59 | 55 | 185 | 527 | 529 | 444 | 479 | 529 | 544 | 297 | 222 | 173 | 131 | 42 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 298 | 517 | 517 | 517 | 517 | 149 | 308 | 307 | 280 | 525 | 285 | 285 | 285 | 470 | 470 | 470 | 481 | 481 | 276 | 276 | 215 |
Best forecast wave conditions in Lleyn Peninsula | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
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