Surf Forecasts:
How big are the waves at Harlech today (21 Aug):
- Morning surf: Morning surf (21 Aug, local time) - 1.5ft (0.5m), 4s period with NW swell.
- Afternoon surf: Afternoon surf (21 Aug, local time) - 1.5ft (0.4m), 4s period with WNW swell.
- Evening surf: Evening surf (21 Aug, local time) - 1.5ft (0.4m), 4s period with NW swell.
The current surf forecast for Harlech at 3PM is: 0.4m 4s primary swell from a West-northwest direction and 0.1m 6s secondary swell from a Southwest direction (forecast issued at 12:00pm August 21). The wind direction is predicted to be cross-offshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Aug) | 1.5ft (0.5m) | 4s |
| Afternoon (21 Aug) | 1.5ft (0.4m) | 4s |
| Evening (21 Aug) | 1.5ft (0.4m) | 4s |
Table - waves today at Harlech. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 3mm), mostly falling on Fri morning. Very mild (max 19°C on Sun afternoon, min 11°C on Fri night). Wind will be generally light. | |||||||||||||||||||||
Fri 21 | Saturday 22 | Sunday 23 | |||||||||||||||||||
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) | NW 4 | WNW 4 | WNW 5 | NW 4 | NW 4 | W 13 | W 13 | W 16 | W 15 | W 15 | W 15 | W 15 | W 15 | W 15 | W 15 | W 15 | W 14 | W 14 | W 14 | SW 13 | SW 12 |
Wave Graph  | |||||||||||||||||||||
 kJ | 10 | 8 | 8 | 5 | 6 | 3 | 3 | 5 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 7 | 6 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-off | cross | cross | cross-off | cross-off | cross-off | cross | cross-on | cross-on | cross-on | cross-on | cross-off | cross-off | cross-off | cross-off | glassy | cross-on | cross-on | cross | off |
High Tide | 3:05PM2.85m | 3:58AM2.73m | 4:48PM2.79m | 5:37AM2.77m | 6:09PM2.98m | ||||||||||||||||
Low Tide | 9:04AM1.62m | 9:50PM1.66m | 10:38AM1.74m | 11:51PM1.66m | 12:30PM1.63m | ||||||||||||||||
 |  | |  |  | | | | | | | | | | | | | | | | | |
 | 6:07 | — | — | — | — | — | 6:07 | — | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — |
 | — | — | — | 8:30 | — | — | — | — | — | — | — | 8:29 | — | — | — | — | — | — | — | 8:25 | — |
mm | 1 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 16 | 18 | 16 | 13 | 12 | 11 | 12 | 14 | 16 | 16 | 16 | 12 | 11 | 11 | 11 | 15 | 17 | 19 | 18 | 14 |
Feels °C | 14 | 15 | 15 | 12 | 10 | 10 | 9 | 11 | 13 | 13 | 13 | 13 | 9 | 9 | 9 | 9 | 14 | 15 | 17 | 16 | 11 |
Swell 1 Height (m) Direction Period (s) | NW 4 | WNW 4 | WNW 5 | W 4 | NW 4 | NW 4 | NW 4 | NW 5 | NW 5 | W 15 | W 15 | W 15 | W 15 | W 15 | NNW 3 | — | W 14 | W 14 | W 14 | SW 13 | NNW 3 |
| kJ | 10 | 8 | 8 | 1 | 6 | 2 | 3 | 3 | 3 | 4 | 4 | 4 | 4 | 4 | 1 | — | 4 | 4 | 4 | 7 | 1 |
Swell 2 Height (m) Direction Period (s) | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | W 6 | W 13 | W 13 | W 15 | — | W 10 | W 12 | W 12 | — | W 15 | W 15 | — | — | — | — | SW 12 |
| kJ | 1 | 1 | 1 | 1 | 1 | 1 | 3 | 3 | 4 | — | 2 | 3 | 3 | — | 4 | 4 | — | — | — | — | 6 |
Swell 3 Height (m) Direction Period (s) | W 14 | W 13 | W 13 | W 13 | W 13 | W 13 | W 6 | W 16 | W 6 | — | — | — | — | W 12 | — | — | — | — | — | — | — |
| kJ | 4 | 4 | 3 | 3 | 3 | 3 | 1 | 5 | 1 | — | — | — | — | 3 | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | NW 4 | — | — | — | — | — | NW 5 | NW 3 | NW 3 | NW 3 | NNW 3 | — | — | — | NW 4 | NW 2 | NW 3 | — |
| kJ | — | — | — | 5 | — | — | — | — | — | 3 | 3 | 4 | 3 | 1 | — | — | — | 1 | 1 | 2 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 131 | 140 | 143 | 143 | 299 | 131 | 138 | 227 | 206 | 138 | 131 | 191 | 295 | 338 | 215 | 138 | 138 | 215 | 141 | 281 | 282 |
Best forecast wave conditions in Mid Wales | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
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