Surf Forecasts:
How big are the waves at Porth Dinllaen today (18 Sep):
- Morning surf: Morning surf (18 Sep, local time) - 3.5ft (1.1m), 5s period with SW swell.
- Afternoon surf: Afternoon surf (18 Sep, local time) - 7ft (2.1m), 7s period with SW swell.
- Evening surf: Evening surf (18 Sep, local time) - 7ft (2.1m), 7s period with SW swell.
The current surf forecast for Porth Dinllaen at 4AM is: 1.3m 5s primary swell from a West direction (forecast issued at 12:00am September 18). The wind direction is predicted to be cross-onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Sep) | 3.5ft (1.1m) | 5s |
| Afternoon (18 Sep) | 7ft (2.1m) | 7s |
| Evening (18 Sep) | 7ft (2.1m) | 7s |
Table - waves today at Porth Dinllaen. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 6mm), mostly falling on Fri afternoon. Very mild (max 17°C on Sat morning, min 12°C on Sun morning). Winds decreasing (near gales from the SW on Fri afternoon, calm by Sun afternoon). | ||||||||||||||||||||||||
Friday 18 | Saturday 19 | Sunday 20 | ||||||||||||||||||||||
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) | W 6 | W 5 | W 5 | SW 5 | SW 6 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | WSW 7 | WSW 7 | WSW 7 | SW 7 | WSW 4 | W 4 | W 5 | WNW 5 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 117 | 99 | 66 | 57 | 157 | 579 | 558 | 492 | 492 | 529 | 465 | 289 | 196 | 138 | 116 | 40 | 50 | 66 | 38 | 30 | 18 | 18 | 12 | 11 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross | cross-off | cross | cross | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | on | glassy | cross-off | cross-off |
High Tide | 1:21AM2.87m | 1:39PM2.79m | 2:15AM2.54m | 2:47PM2.53m | 3:59AM2.32m | 4:58PM2.46m | ||||||||||||||||||
Low Tide | 8:09AM1.29m | 8:42PM1.30m | 9:08AM1.51m | 10:04PM1.49m | 10:42AM1.61m | |||||||||||||||||||
 |  |  |  | |  | | | | | |  | | | |  | | | | | | | | | |
 | — | 6:56 | — | — | — | — | — | — | — | 6:56 | — | — | — | — | — | — | — | 6:58 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 7:27 | — | — | — | — | — | — | — | 7:24 | — | — | — | — | — | — | — | 7:22 | — |
mm | — | — | — | — | — | 5 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 15 | 14 | 14 | 15 | 15 | 16 | 16 | 16 | 16 | 16 | 17 | 16 | 17 | 17 | 16 | 14 | 13 | 13 | 12 | 12 | 12 | 13 | 13 |
Feels °C | 7 | 9 | 9 | 8 | 7 | 6 | 9 | 10 | 9 | 9 | 10 | 12 | 11 | 12 | 12 | 12 | 8 | 8 | 8 | 7 | 9 | 11 | 9 | 9 |
Swell 1 Height (m) Direction Period (s) | — | — | — | NW 5 | NW 5 | — | — | — | — | — | — | — | — | W 16 | — | W 15 | — | W 14 | SW 5 | SW 6 | SW 6 | NW 4 | SW 6 | NW 4 |
| kJ | — | — | — | 9 | 4 | — | — | — | — | — | — | — | — | 5 | — | 4 | — | 4 | 23 | 30 | 18 | 7 | 12 | 1 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 14 | W 14 | W 14 | W 14 | NW 4 | W 14 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 4 | 4 | 4 | 4 | 3 | 4 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 14 | W 14 | W 14 | W 14 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 4 | 4 | 4 | 4 |
Wind waves Height (m) Direction Period (s) | W 6 | W 5 | W 5 | SW 5 | SW 6 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | SW 7 | WSW 7 | WSW 7 | WSW 7 | SW 7 | WSW 4 | W 4 | W 5 | WNW 5 | NW 5 | WNW 5 | SW 6 | — | SW 6 |
| kJ | 117 | 99 | 66 | 57 | 157 | 579 | 558 | 492 | 492 | 529 | 465 | 289 | 196 | 138 | 116 | 40 | 50 | 66 | 38 | 24 | 15 | 18 | — | 11 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 157 | 476 | 287 | 476 | 372 | 372 | 372 | 372 | 476 | 465 | 465 | 265 | 518 | 13 | 265 | 13 | 244 | 143 | 141 | 141 | 13 | 127 | 127 | 211 |
Best forecast wave conditions in Lleyn Peninsula | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
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