Surf Forecasts:
How big are the waves at Trefor today (31 Jul):
- Morning surf: Morning surf (31 Jul, local time) - 1.5ft (0.5m), 4s period with W swell.
- Evening surf: Evening surf (31 Jul, local time) - 2.5ft (0.8m), 5s period with SW swell.
The current surf forecast for Trefor at 3AM is: 0.1m 4s primary swell from a Southwest direction and 0.2m 3s secondary swell from a West-northwest direction (forecast issued at 12:00am July 31). The wind direction is predicted to be onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 Jul) | 1.5ft (0.5m) | 4s |
| Afternoon (31 Jul) | - | - |
| Evening (31 Jul) | 2.5ft (0.8m) | 5s |
Table - waves today at Trefor. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 2mm), mostly falling on Fri afternoon. Very mild (max 19°C on Sun afternoon, min 13°C on Thu night). Wind will be generally light. | ||||||||||||||||||||||||
Friday 31 | Saturday 1 | Sunday 2 | ||||||||||||||||||||||
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 | 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) | SW 4 | NW 3 | SW 5 | SW 5 | W 4 | SW 3 | SW 4 | SW 5 | SW 5 | SW 5 | SW 5 | SW 5 | W 4 | NW 4 | W 9 | W 9 | SW 4 | W 9 | WSW 4 | W 8 | W 8 | W 8 | SW 8 | SW 8 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 1 | 2 | 3 | 6 | 4 | 0 | 0 | 26 | 23 | 14 | 10 | 6 | 7 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 3 | 3 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | cross-on | cross | cross | cross-off | cross-off | cross | on | cross-on | cross-on | cross-on | cross-on | cross-off | glassy | cross-off | cross-off | cross-off | cross-off | glassy | glassy | on | cross-on | cross-on |
High Tide | 10:16PM3.68m | 10:33AM3.31m | 10:47PM3.76m | 11:04AM3.35m | 11:19PM3.79m | 11:37AM3.35m | ||||||||||||||||||
Low Tide | 5:21AM0.26m | 5:26PM0.35m | 5:55AM0.22m | 6:00PM0.36m | 6:30AM0.24m | 6:35PM0.44m | ||||||||||||||||||
 | |  | | |  |  |  | | | | | | | |  |  | |  | | | | | | |
 | — | 5:31 | — | — | — | — | — | — | — | 5:33 | — | — | — | — | — | — | — | 5:35 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 9:14 | — | — | — | — | — | — | — | 9:12 | — | — | — | — | — | — | — | 9:09 | — |
mm | — | — | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 14 | 13 | 14 | 15 | 16 | 17 | 17 | 15 | 14 | 13 | 13 | 14 | 15 | 16 | 15 | 14 | 14 | 14 | 16 | 18 | 19 | 18 | 16 |
Feels °C | 14 | 11 | 11 | 11 | 12 | 12 | 14 | 14 | 13 | 11 | 10 | 10 | 12 | 13 | 15 | 13 | 12 | 13 | 12 | 15 | 17 | 16 | 16 | 12 |
Swell 1 Height (m) Direction Period (s) | SW 4 | SW 4 | SW 5 | SW 5 | — | — | — | SW 5 | SW 5 | SW 5 | SW 5 | SW 5 | — | NW 4 | — | WSW 4 | SW 4 | WSW 4 | WSW 4 | — | — | — | SW 8 | SW 8 |
| kJ | 1 | 1 | 3 | 5 | — | — | — | 26 | 23 | 14 | 10 | 6 | — | 2 | — | 2 | 2 | 1 | 1 | — | — | — | 3 | 3 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | W 12 | W 11 | W 10 | — | NW 4 | W 9 | W 9 | — | — | W 9 | W 8 | W 8 | W 8 | W 8 | — | — |
| kJ | — | — | — | — | — | — | — | — | 3 | 2 | 2 | — | 4 | 2 | 2 | — | — | 1 | 1 | 1 | 1 | 1 | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | W 9 | W 9 | W 9 | W 9 | W 9 | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 2 | 2 | 2 | 2 | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | NW 3 | NW 3 | W 4 | W 4 | SW 3 | SW 4 | WSW 5 | NW 3 | NW 3 | NW 4 | NW 4 | W 4 | SW 5 | SW 4 | — | — | — | — | — | — | — | N 2 | NNE 2 |
| kJ | — | 2 | 3 | 6 | 4 | 4 | 14 | 48 | 1 | 3 | 4 | 4 | 7 | 4 | 3 | — | — | — | — | — | — | — | 1 | 1 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 320 | 285 | 280 | 321 | 318 | 324 | 340 | 1053 | 632 | 348 | 311 | 155 | 318 | 413 | 340 | 340 | 340 | 285 | 236 | 236 | 280 | 280 | 280 | 311 |
Best forecast wave conditions in Lleyn Peninsula | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
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