Surf Forecasts:
How big are the waves at Trefor today (18 Jul):
- Morning surf: Morning surf (18 Jul, local time) - 0.5ft (0.1m), 12s period with W swell.
- Afternoon surf: Afternoon surf (18 Jul, local time) - 2.5ft (0.7m), 4s period with NW swell.
- Evening surf: Evening surf (18 Jul, local time) - 1.5ft (0.5m), 5s period with N swell.
The current surf forecast for Trefor at 11AM is: 0.4m 3s primary swell from a North-northwest direction and 0.1m 6s secondary swell from a Southwest direction (forecast issued at 06:00am July 18). The wind direction is predicted to be onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Jul) | 0.5ft (0.1m) | 12s |
| Afternoon (18 Jul) | 2.5ft (0.7m) | 4s |
| Evening (18 Jul) | 1.5ft (0.5m) | 5s |
Table - waves today at Trefor. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Very mild (max 17°C on Sat afternoon, min 12°C on Sun night). Wind will be generally light. | |||||||||||||||||||||||
Saturday 18 | Sunday 19 | Monday 20 | |||||||||||||||||||||
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) | W 11 | W 11 | NNW 3 | NW 4 | NW 4 | NNW 4 | N 5 | NNW 5 | W 11 | NNW 5 | NNW 4 | NW 2 | NNW 3 | NNW 3 | NNW 3 | NNW 3 | N 2 | NNW 5 | NNW 5 | NNW 3 | NNW 4 | NNW 4 | N 4 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 2 | 3 | 1 | 13 | 16 | 12 | 15 | 8 | 2 | 0 | 2 | 2 | 4 | 4 | 2 | 2 | 1 | 5 | 10 | 7 | 13 | 13 | 7 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | on | on | on | cross-on | cross-on | cross-on | cross-on | glassy | on | on | on | on | cross-on | cross-on | cross-on | cross-on | on | on | on | on | cross-on |
High Tide | 12:11PM3.41m | 00:29AM3.90m | 12:57PM3.23m | 1:15AM3.63m | 1:45PM3.03m | ||||||||||||||||||
Low Tide | 7:00AM-0.10m | 7:08PM0.30m | 7:44AM0.13m | 7:51PM0.51m | 8:28AM0.43m | 8:35PM0.76m | |||||||||||||||||
 |  | | | | | | |  |  | | | | | | | | |  | | | | | |
 | 5:13 | — | — | — | — | — | — | — | 5:13 | — | — | — | — | — | — | — | 5:16 | — | — | — | — | — | — |
 | — | — | — | — | — | 9:32 | — | — | — | — | — | — | — | 9:31 | — | — | — | — | — | — | — | 9:30 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 13 | 14 | 15 | 16 | 17 | 15 | 16 | 15 | 15 | 15 | 16 | 16 | 17 | 15 | 14 | 13 | 12 | 13 | 14 | 16 | 17 | 16 |
Feels °C | 12 | 11 | 11 | 11 | 13 | 14 | 13 | 15 | 14 | 15 | 13 | 14 | 13 | 15 | 12 | 11 | 11 | 10 | 10 | 10 | 13 | 14 | 14 |
Swell 1 Height (m) Direction Period (s) | SW 6 | SW 6 | SW 6 | SW 6 | SW 5 | S 5 | NW 3 | W 11 | NNW 5 | NNW 5 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 4 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 2 Height (m) Direction Period (s) | W 11 | W 11 | — | — | — | W 11 | W 11 | — | W 11 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 2 | 3 | — | — | — | 2 | 2 | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | S 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | N 2 | NNW 2 | NNW 3 | NW 4 | NW 4 | NNW 4 | N 5 | NNW 5 | — | — | NNW 4 | NW 2 | NNW 3 | NNW 3 | NNW 3 | NNW 3 | N 2 | NNW 5 | NNW 5 | NNW 3 | NNW 4 | NNW 4 | N 4 |
| kJ | 1 | 1 | 1 | 13 | 16 | 12 | 15 | 8 | — | — | 2 | 2 | 4 | 4 | 2 | 2 | 1 | 5 | 10 | 7 | 13 | 13 | 7 |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 356 | 298 | 298 | 298 | 298 | 298 | 298 | 239 | 282 | 277 | 298 | 298 | 353 | 298 | 283 | 283 | 283 | 283 | 298 | 298 | 298 | 387 | 283 |
Best forecast wave conditions in Lleyn Peninsula | |||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||||
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