Surf Forecasts:
How big are the waves at Trefor today (20 Oct):
- Morning surf: Morning surf (20 Oct, local time) - 1.5ft (0.4m), 4s period with SSW swell.
- Afternoon surf: Afternoon surf (20 Oct, local time) - 1ft (0.3m), 4s period with SSW swell.
- Evening surf: Evening surf (20 Oct, local time) - 0.5ft (0.1m), 10s period with W swell.
The current surf forecast for Trefor at 7PM is: 0.3m 4s primary swell from a South-southwest direction and 0.1m 8s secondary swell from a West direction (forecast issued at 12:00pm October 20). The wind direction is predicted to be offshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Oct) | 1.5ft (0.4m) | 4s |
| Afternoon (20 Oct) | 1ft (0.3m) | 4s |
| Evening (20 Oct) | 0.5ft (0.1m) | 10s |
Table - waves today at Trefor. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 21mm), heaviest during Wed afternoon. Very mild (max 12°C on Thu morning, min 8°C on Wed morning). Winds increasing (light winds from the SE on Tue morning, gales from the NW by Wed morning). | |||||||||||||||||||||
Tue 20 | Wednesday 21 | Thursday 22 | |||||||||||||||||||
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) | SSW 6 | SSW 4 | SSW 4 | SSW 4 | W 10 | SW 5 | SW 6 | SW 7 | WSW 10 | W 8 | WNW 8 | WNW 7 | W 6 | W 6 | W 5 | WSW 5 | WSW 5 | WSW 8 | SW 8 | SW 8 | SW 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 3 | 3 | 4 | 4 | 2 | 14 | 46 | 103 | 746 | 1029 | 1113 | 485 | 200 | 105 | 67 | 69 | 82 | 46 | 118 | 97 | 54 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | off | off | cross-off | off | off | off | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross-off | off | cross-off | cross-off |
High Tide | 5:36PM2.63m | 6:24AM2.51m | 6:27PM2.86m | 7:00AM2.75m | 7:03PM3.12m | ||||||||||||||||
Low Tide | 11:19AM1.44m | 00:15AM1.17m | 12:29PM1.24m | 1:09AM0.89m | 1:21PM0.99m | ||||||||||||||||
 |  | |  |  | |  |  | | | |  | | | | |  | | | | | |
 | 7:50 | — | — | — | — | — | — | 7:52 | — | — | — | — | — | — | — | 7:54 | — | — | — | — | — |
 | — | — | 6:12 | — | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — | — | 6:07 | — | — |
mm | — | 1 | 1 | — | — | — | — | 2 | 1 | 1 | 5 | 1 | — | 1 | 1 | 1 | — | — | — | — | 1 |
Temp °C | 10 | 9 | 9 | 10 | 10 | 10 | 11 | 11 | 10 | 8 | 9 | 10 | 10 | 9 | 10 | 10 | 11 | 12 | 12 | 11 | 12 |
Feels °C | 7 | 7 | 7 | 7 | 6 | 5 | 5 | 7 | 2 | -6 | -3 | 1 | 4 | 4 | 5 | 5 | 6 | 8 | 7 | 6 | 5 |
Swell 1 Height (m) Direction Period (s) | SSW 4 | SSW 4 | SSW 4 | SSW 4 | SW 5 | SW 5 | SW 6 | SW 7 | SW 11 | — | — | — | — | — | — | — | — | WSW 8 | SW 8 | SW 8 | SW 8 |
| kJ | 3 | 3 | 4 | 4 | 1 | 14 | 46 | 103 | 361 | — | — | — | — | — | — | — | — | 46 | 118 | 97 | 54 |
Swell 2 Height (m) Direction Period (s) | SSW 6 | SW 6 | W 8 | W 8 | W 8 | — | — | WSW 14 | — | — | — | — | — | — | — | — | — | NW 4 | NW 4 | WNW 4 | NW 4 |
| kJ | 3 | 1 | 1 | 1 | 1 | — | — | 20 | — | — | — | — | — | — | — | — | — | 5 | 4 | 1 | 1 |
Swell 3 Height (m) Direction Period (s) | W 11 | W 11 | W 10 | W 10 | W 10 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 2 | 2 | 2 | 2 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | S 4 | SSE 2 | — | — | S 4 | SSE 3 | SE 4 | SE 4 | WSW 10 | W 8 | WNW 8 | WNW 7 | W 6 | W 6 | W 5 | WSW 5 | WSW 5 | WSW 5 | — | — | ESE 3 |
| kJ | 3 | 1 | — | — | 9 | 6 | 10 | 6 | 746 | 1029 | 1113 | 485 | 200 | 105 | 67 | 69 | 82 | 45 | — | — | 3 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 147 | 147 | 154 | 173 | 280 | 280 | 280 | 269 | 269 | 297 | 283 | 283 | 276 | 20 | 144 | 144 | 144 | 223 | 26 | 26 | 280 |
Best forecast wave conditions in Lleyn Peninsula | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
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