Surf Forecasts:
How big are the waves at Trefor today (20 Jul):
- Morning surf: Morning surf (20 Jul, local time) - 1ft (0.3m), 4s period with NNW swell.
- Afternoon surf: Afternoon surf (20 Jul, local time) - 1.5ft (0.4m), 3s period with NNW swell.
- Evening surf: Evening surf (20 Jul, local time) - 1.5ft (0.5m), 3s period with NNW swell.
The current surf forecast for Trefor at 12PM is: 0.4m 3s primary swell from a North-northwest direction (forecast issued at 06:00am July 20). The wind direction is predicted to be onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Jul) | 1ft (0.3m) | 4s |
| Afternoon (20 Jul) | 1.5ft (0.4m) | 3s |
| Evening (20 Jul) | 1.5ft (0.5m) | 3s |
Table - waves today at Trefor. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Very mild (max 19°C on Wed afternoon, min 11°C on Tue night). Wind will be generally light. | |||||||||||||||||||||||
Monday 20 | Tuesday 21 | Wednesday 22 | |||||||||||||||||||||
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) | N 3 | N 4 | NNW 5 | NNW 3 | NNW 3 | NNW 3 | N 3 | N 6 | NNW 3 | NNW 6 | NNW 5 | NNW 3 | NNW 3 | N 3 | N 3 | W 16 | W 16 | NNW 7 | NNW 6 | NW 6 | NNW 6 | NNW 3 | N 3 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 1 | 3 | 4 | 3 | 4 | 6 | 5 | 15 | 2 | 10 | 10 | 3 | 6 | 5 | 5 | 5 | 5 | 0 | 0 | 37 | 27 | 7 | 5 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | on | on | on | on | cross-on | cross-on | cross-on | on | on | on | on | cross-on | cross-on | cross-on | cross-on | on | on | on | on | on | cross-on |
High Tide | 1:45PM3.03m | 2:05AM3.31m | 2:38PM2.85m | 3:02AM3.00m | 3:40PM2.71m | ||||||||||||||||||
Low Tide | 8:28AM0.43m | 8:35PM0.76m | 9:14AM0.74m | 9:25PM1.01m | 10:04AM1.02m | ||||||||||||||||||
 |  | |  | | | | | | | | | | | | |  |  | | | | | | |
 | 5:16 | — | — | — | — | — | — | — | 5:16 | — | — | — | — | — | — | — | 5:18 | — | — | — | — | — | — |
 | — | — | — | — | — | 9:30 | — | — | — | — | — | — | — | 9:29 | — | — | — | — | — | — | — | 9:28 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 13 | 14 | 15 | 15 | 17 | 15 | 14 | 13 | 13 | 14 | 15 | 17 | 16 | 13 | 12 | 11 | 11 | 12 | 15 | 18 | 19 | 16 |
Feels °C | 11 | 11 | 11 | 11 | 11 | 14 | 12 | 12 | 12 | 12 | 12 | 13 | 13 | 12 | 10 | 9 | 8 | 8 | 8 | 12 | 15 | 16 | 14 |
Swell 1 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | NNW 6 | NNW 4 | NW 5 | — | — | — | — | W 16 | W 16 | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | 6 | 1 | 1 | — | — | — | — | 5 | 5 | — | — | — | — | — | — |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | NW 5 | NW 6 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | N 3 | N 4 | NNW 5 | NNW 3 | NNW 3 | NNW 3 | N 3 | N 6 | NNW 3 | NNW 6 | NNW 5 | NNW 3 | NNW 3 | N 3 | N 3 | N 6 | NNW 7 | NNW 7 | NNW 6 | NW 6 | NNW 6 | NNW 3 | N 3 |
| kJ | 1 | 3 | 4 | 3 | 4 | 6 | 5 | 15 | 2 | 10 | 10 | 3 | 6 | 5 | 5 | 31 | 45 | 50 | 49 | 37 | 27 | 7 | 5 |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 283 | 283 | 298 | 335 | 1063 | 330 | 296 | 299 | 236 | 236 | 236 | 572 | 329 | 57 | 57 | 57 | 57 | 57 | 57 | 298 | 324 | 296 | 287 |
Best forecast wave conditions in Lleyn Peninsula | |||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||||
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