Surf Forecasts:
How big are the waves at Trefor today (09 Sep):
- Morning surf: Morning surf (09 Sep, local time) - 3.5ft (1.0m), 5s period with NW swell.
- Afternoon surf: Afternoon surf (09 Sep, local time) - 1.5ft (0.4m), 8s period with SW swell.
- Evening surf: Evening surf (09 Sep, local time) - 1ft (0.3m), 8s period with SW swell.
The current surf forecast for Trefor at 1AM is: 1.4m 6s primary swell from a Northwest direction and 0.5m 6s secondary swell from a Southwest direction (forecast issued at 06:00pm September 08). The wind direction is predicted to be onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (09 Sep) | 3.5ft (1.0m) | 5s |
| Afternoon (09 Sep) | 1.5ft (0.4m) | 8s |
| Evening (09 Sep) | 1ft (0.3m) | 8s |
Table - waves today at Trefor. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 10mm), heaviest on Thu afternoon. Very mild (max 17°C on Thu afternoon, min 13°C on Tue night). Winds increasing (light winds from the SSW on Wed afternoon, strong winds from the SSW by Thu morning). | |||||||||||||||||||
Tue 8 | Wednesday 9 | Thursday 10 | |||||||||||||||||
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 5 | W 5 | NW 5 | NW 6 | NW 6 | NW 6 | NW 5 | NW 5 | SW 8 | SW 8 | SW 8 | SW 4 | SW 4 | WSW 7 | SSW 5 | SW 6 | SW 6 | SW 7 | SW 7 |
Wave Graph  | |||||||||||||||||||
 kJ | 90 | 75 | 98 | 129 | 119 | 86 | 47 | 22 | 15 | 9 | 9 | 0 | 0 | 5 | 0 | 0 | 273 | 292 | 281 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | on | on | on | cross-on | cross-on | cross-on | cross-off | off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross |
High Tide | 7:25PM3.42m | 7:58AM3.26m | 8:13PM3.75m | 8:42AM3.49m | 8:56PM4.01m | ||||||||||||||
Low Tide | 2:05PM0.65m | 2:38AM0.21m | 2:54PM0.35m | 3:25AM-0.08m | 3:37PM0.12m | ||||||||||||||
 |  |  |  | |  | |  | |  |  | | | | | | | |  | |
 | — | — | — | — | 6:39 | — | — | — | — | — | — | — | 6:41 | — | — | — | — | — | — |
 | — | 7:51 | — | — | — | — | — | — | — | 7:49 | — | — | — | — | — | — | — | 7:45 | — |
mm | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 3 | 3 | 1 |
Temp °C | 15 | 15 | 14 | 13 | 13 | 14 | 14 | 13 | 14 | 14 | 13 | 14 | 13 | 15 | 15 | 16 | 15 | 17 | 17 |
Feels °C | 9 | 9 | 7 | 6 | 6 | 9 | 9 | 9 | 12 | 12 | 10 | 10 | 9 | 11 | 9 | 9 | 10 | 15 | 14 |
Swell 1 Height (m) Direction Period (s) | — | W 10 | WSW 6 | SW 6 | WSW 6 | SW 6 | SW 8 | SW 8 | SW 8 | WNW 4 | SW 8 | — | — | WSW 7 | — | — | — | — | SW 7 |
| kJ | — | 2 | 22 | 16 | 13 | 9 | 10 | 16 | 15 | 3 | 9 | — | — | 5 | — | — | — | — | 205 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | SW 10 | W 9 | SW 6 | — | NNW 5 | SW 8 | WNW 3 | NNW 4 | — | — | — | — | — | — | — |
| kJ | — | — | — | — | 4 | 2 | 5 | — | 5 | 9 | 1 | 2 | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | NNW 5 | NNW 5 | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | 2 | 2 | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | W 5 | W 5 | NW 5 | NW 6 | NW 6 | NW 6 | NW 5 | NW 5 | W 4 | — | SW 2 | SW 4 | SW 4 | SSW 4 | SSW 5 | SW 6 | SW 6 | SW 7 | SW 7 |
| kJ | 90 | 75 | 98 | 129 | 119 | 86 | 47 | 22 | 9 | — | 1 | 10 | 26 | 35 | 74 | 159 | 273 | 292 | 281 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 1055 | 593 | 517 | 313 | 149 | 149 | 158 | 160 | 20 | 276 | 160 | 206 | 268 | 248 | 307 | 307 | 544 | 108 | 255 |
Best forecast wave conditions in Lleyn Peninsula | |||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||
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