Surf Forecasts:
How big are the waves at Porth Dinllaen today (21 Sep):
- Morning surf: Morning surf (21 Sep, local time) - 0.5ft (0.1m), 13s period with W swell.
- Afternoon surf: Afternoon surf (21 Sep, local time) - 0.5ft (0.1m), 13s period with W swell.
- Evening surf: Evening surf (21 Sep, local time) - 0.5ft (0.1m), 6s period with SW swell.
The current surf forecast for Porth Dinllaen at 5AM is: 0.2m 6s primary swell from a West-southwest direction (forecast issued at 12:00am September 21). An open ocean swell of 0.6m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Sep) | 0.5ft (0.1m) | 13s |
| Afternoon (21 Sep) | 0.5ft (0.1m) | 13s |
| Evening (21 Sep) | 0.5ft (0.1m) | 6s |
Table - waves today at Porth Dinllaen. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 4mm), mostly falling on Tue night. Very mild (max 18°C on Mon night, min 12°C on Wed morning). Mainly fresh winds. | ||||||||||||||||||||||||
Monday 21 | Tuesday 22 | Wednesday 23 | ||||||||||||||||||||||
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 6 | WSW 6 | W 13 | W 13 | W 13 | SW 4 | SW 6 | W 6 | W 6 | SW 4 | SW 4 | SW 4 | W 12 | W 12 | W 12 | W 18 | W 17 | W 16 | SW 15 | SW 15 | NNW 4 | NNW 5 | NNW 4 | NNW 4 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 5 | 3 | 3 | 3 | 3 | 5 | 1 | 1 | 1 | 0 | 0 | 5 | 3 | 3 | 3 | 6 | 6 | 5 | 9 | 8 | 25 | 36 | 16 | 11 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross |
High Tide | 6:04AM2.39m | 6:27PM2.66m | 7:02AM2.59m | 7:14PM2.92m | 7:39AM2.82m | 7:47PM3.20m | ||||||||||||||||||
Low Tide | 11:54PM1.46m | 12:22PM1.47m | 1:11AM1.22m | 1:23PM1.20m | 1:57AM0.92m | 2:06PM0.91m | ||||||||||||||||||
 |  | |  |  |  | |  | | | | | | | | | |  | |  |  | | | | |
 | — | — | 7:01 | — | — | — | — | — | — | — | 7:01 | — | — | — | — | — | — | — | 7:03 | — | — | — | — | — |
 | — | — | — | — | — | — | 7:20 | — | — | — | — | — | — | — | 7:17 | — | — | — | — | — | — | — | 7:15 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 1 | 1 | — | — | — |
Temp °C | 14 | 14 | 14 | 14 | 16 | 17 | 17 | 18 | 17 | 16 | 16 | 17 | 17 | 17 | 18 | 17 | 17 | 17 | 14 | 12 | 13 | 14 | 14 | 12 |
Feels °C | 11 | 10 | 11 | 12 | 16 | 17 | 16 | 17 | 16 | 15 | 15 | 16 | 17 | 16 | 18 | 16 | 16 | 17 | 12 | 5 | 6 | 7 | 8 | 9 |
Swell 1 Height (m) Direction Period (s) | SW 6 | WSW 6 | SW 6 | SW 6 | W 13 | — | SW 6 | W 6 | W 6 | — | — | — | — | W 6 | SW 3 | — | — | W 16 | WSW 3 | WSW 3 | — | W 13 | SW 7 | W 7 |
| kJ | 5 | 3 | 1 | 1 | 3 | — | 1 | 1 | 1 | — | — | — | — | 1 | 2 | — | — | 5 | 1 | 1 | — | 3 | 2 | 1 |
Swell 2 Height (m) Direction Period (s) | NW 4 | — | — | W 13 | W 13 | SW 6 | — | — | — | — | — | — | SW 6 | — | W 5 | — | W 17 | W 12 | SW 15 | SW 15 | W 14 | — | W 13 | W 12 |
| kJ | 1 | — | — | 3 | 3 | 1 | — | — | — | — | — | — | 1 | — | 1 | — | 6 | 3 | 9 | 8 | 4 | — | 3 | 3 |
Swell 3 Height (m) Direction Period (s) | — | — | W 13 | — | — | W 13 | — | — | — | — | — | — | W 12 | W 12 | W 12 | W 18 | — | W 5 | W 5 | W 6 | W 6 | W 6 | — | W 12 |
| kJ | — | — | 3 | — | — | 3 | — | — | — | — | — | — | 3 | 3 | 3 | 6 | — | 1 | 1 | 1 | 1 | 1 | — | 3 |
Wind waves Height (m) Direction Period (s) | SW 3 | SW 3 | SSW 4 | SSW 4 | SW 4 | SW 4 | SW 4 | SW 4 | SW 4 | SW 4 | SW 4 | SW 4 | SW 4 | SW 3 | — | — | — | SW 3 | — | NW 3 | NNW 4 | NNW 5 | NNW 4 | NNW 4 |
| kJ | 3 | 6 | 12 | 10 | 8 | 5 | 4 | 3 | 3 | 7 | 7 | 5 | 3 | 2 | — | — | — | 2 | — | 3 | 25 | 36 | 16 | 11 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 141 | 141 | 203 | 239 | 268 | 282 | 282 | 229 | 229 | 229 | 229 | 148 | 197 | 154 | 141 | 120 | 127 | 142 | 142 | 154 | 312 | 273 | 273 | 154 |
Best forecast wave conditions in Lleyn Peninsula | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
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