Surf Forecasts:
How big are the waves at Trefor today (29 Aug):
- Morning surf: Morning surf (29 Aug, local time) - 2.5ft (0.7m), 6s period with SW swell.
- Afternoon surf: Afternoon surf (29 Aug, local time) - 1.5ft (0.5m), 6s period with SW swell.
- Evening surf: Evening surf (29 Aug, local time) - 2ft (0.6m), 7s period with SW swell.
The current surf forecast for Trefor at 9PM is: 0.6m 7s primary swell from a Southwest direction and 0.2m 2s secondary swell from a North-northwest direction (forecast issued at 12:00pm August 29). The wind direction is predicted to be onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (29 Aug) | 2.5ft (0.7m) | 6s |
| Afternoon (29 Aug) | 1.5ft (0.5m) | 6s |
| Evening (29 Aug) | 2ft (0.6m) | 7s |
Table - waves today at Trefor. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 17mm), heaviest on Sat morning. Very mild (max 16°C on Sat morning, min 14°C on Mon morning). Winds increasing (light winds from the WNW on Sat night, fresh winds from the WNW by Sun night). | |||||||||||||||||||||
Sat 29 | Sunday 30 | Monday 31 | |||||||||||||||||||
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 6 | SSW 6 | SW 6 | SW 6 | SW 8 | SW 9 | SW 9 | SW 9 | SW 8 | SSW 8 | SW 8 | WSW 8 | SW 7 | SW 8 | SW 8 | SW 8 | NW 6 | NW 6 | SW 8 | WSW 8 | SW 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 38 | 25 | 18 | 19 | 48 | 99 | 118 | 91 | 84 | 117 | 16 | 22 | 100 | 94 | 50 | 135 | 128 | 70 | 54 | 44 | 39 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross-on | on | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-off | cross |
High Tide | 10:06AM3.52m | 10:19PM3.95m | 10:37AM3.61m | 10:51PM3.99m | 11:10AM3.65m | ||||||||||||||||
Low Tide | 4:58PM0.19m | 5:25AM0.02m | 5:32PM0.19m | 5:59AM0.07m | 6:08PM0.27m | ||||||||||||||||
 | | |  |  | |  | |  | |  | |  | | |  |  | | | | | |
 | 6:20 | — | — | — | — | — | 6:22 | — | — | — | — | — | — | — | 6:24 | — | — | — | — | — | — |
 | — | — | — | 8:14 | — | — | — | — | — | — | — | 8:12 | — | — | — | — | — | — | — | 8:09 | — |
mm | 2 | 5 | 3 | — | — | — | — | — | 1 | 2 | 1 | 2 | 1 | — | — | — | — | — | — | — | — |
Temp °C | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 15 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 15 | 14 | 14 | 15 | 15 | 16 |
Feels °C | 16 | 16 | 16 | 15 | 15 | 15 | 14 | 13 | 12 | 12 | 11 | 14 | 13 | 14 | 10 | 9 | 7 | 9 | 11 | 12 | 14 |
Swell 1 Height (m) Direction Period (s) | SW 6 | SSW 6 | SW 6 | SW 6 | SW 8 | SW 9 | SW 9 | SW 9 | SW 8 | — | SW 8 | WSW 8 | SW 7 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | SW 8 | WSW 8 | WNW 4 |
| kJ | 38 | 25 | 18 | 19 | 48 | 99 | 118 | 91 | 72 | — | 16 | 22 | 100 | 94 | 50 | 135 | 100 | 70 | 54 | 44 | 2 |
Swell 2 Height (m) Direction Period (s) | — | — | SSE 3 | — | — | — | — | — | — | — | — | — | — | — | WSW 11 | — | — | — | — | WNW 5 | NNW 5 |
| kJ | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | 23 | — | — | — | — | 14 | 2 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SE 3 | — | — | NNW 2 | NW 3 | — | — | SW 4 | SW 8 | SSW 8 | SSW 5 | SW 6 | — | — | WSW 4 | WNW 5 | NW 6 | NW 6 | WNW 5 | — | SW 8 |
| kJ | 2 | — | — | 1 | 4 | — | — | 3 | 84 | 117 | 46 | 80 | — | — | 22 | 77 | 128 | 69 | 32 | — | 39 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 204 | 154 | 160 | 158 | 20 | 20 | 276 | 93 | 223 | 303 | 189 | 153 | 20 | 20 | 434 | 276 | 272 | 144 | 20 | 149 | 20 |
Best forecast wave conditions in Lleyn Peninsula | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
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