Surf Forecasts:
How big are the waves at Harlech today (19 Aug):
- Morning surf: Morning surf (19 Aug, local time) - 2ft (0.6m), 4s period with W swell.
- Afternoon surf: Afternoon surf (19 Aug, local time) - 2ft (0.6m), 4s period with WSW swell.
- Evening surf: Evening surf (19 Aug, local time) - 3ft (0.9m), 5s period with WSW swell.
The current surf forecast for Harlech at 10AM is: 0.6m 4s primary swell from a West direction and 0.2m 6s secondary swell from a West-southwest direction, 0.1m 16s secondary swell from a West direction (forecast issued at 06:00am August 19). The wind direction is predicted to be onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 Aug) | 2ft (0.6m) | 4s |
| Afternoon (19 Aug) | 2ft (0.6m) | 4s |
| Evening (19 Aug) | 3ft (0.9m) | 5s |
Table - waves today at Harlech. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 12mm), heaviest on Wed morning. Very mild (max 16°C on Wed morning, min 11°C on Fri night). Wind will be generally light. | |||||||||||||||||||||||
Wednesday 19 | Thursday 20 | Friday 21 | |||||||||||||||||||||
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 17 | WSW 4 | W 4 | W 4 | WSW 4 | WSW 5 | WSW 5 | WSW 5 | WSW 5 | WSW 5 | WSW 7 | NW 5 | NW 5 | NNW 4 | NW 4 | NNW 4 | NW 4 | NW 4 | NW 4 | WNW 4 | WNW 4 | W 13 | NW 4 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 8 | 10 | 12 | 9 | 10 | 37 | 47 | 51 | 31 | 23 | 30 | 22 | 23 | 16 | 9 | 6 | 9 | 6 | 9 | 7 | 7 | 3 | 6 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | on | on | cross-on | cross-on | cross-on | on | on | on | cross-on | cross | cross | cross | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross | cross-off |
High Tide | 1:08PM3.43m | 1:31AM3.34m | 1:55PM3.11m | 2:28AM2.96m | 3:05PM2.85m | ||||||||||||||||||
Low Tide | 7:36AM1.06m | 7:44PM1.19m | 8:11AM1.37m | 8:32PM1.46m | 9:04AM1.62m | 9:50PM1.66m | |||||||||||||||||
 |  | | |  | | | | | | | |  | |  | | | | | | | | | |
 | 6:03 | — | — | — | — | — | — | — | 6:05 | — | — | — | — | — | — | — | 6:07 | — | — | — | — | — | — |
 | — | — | — | — | — | 8:35 | — | — | — | — | — | — | — | 8:32 | — | — | — | — | — | — | — | 8:30 | — |
mm | 1 | 1 | 2 | 1 | — | 1 | 1 | 1 | 1 | 1 | 1 | 1 | — | — | — | — | — | — | — | — | — | 1 | 1 |
Temp °C | 14 | 15 | 15 | 16 | 16 | 16 | 16 | 15 | 14 | 14 | 16 | 16 | 16 | 16 | 13 | 12 | 12 | 12 | 13 | 15 | 15 | 15 | 12 |
Feels °C | 12 | 13 | 13 | 13 | 12 | 13 | 15 | 14 | 13 | 13 | 15 | 14 | 12 | 12 | 11 | 10 | 10 | 10 | 11 | 13 | 12 | 13 | 9 |
Swell 1 Height (m) Direction Period (s) | NW 4 | NW 4 | WSW 6 | WSW 5 | NW 4 | — | — | W 16 | W 16 | WSW 5 | WSW 7 | WSW 7 | WSW 7 | SW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | SW 6 | SW 6 | SW 6 | WNW 4 | NW 4 |
| kJ | 2 | 1 | 3 | 3 | 1 | — | — | 5 | 5 | 23 | 30 | 18 | 17 | 10 | 8 | 4 | 4 | 3 | 1 | 1 | 1 | 3 | 6 |
Swell 2 Height (m) Direction Period (s) | WSW 6 | W 17 | W 16 | W 16 | — | — | — | — | — | W 15 | W 15 | W 14 | W 14 | W 14 | W 14 | W 14 | W 14 | W 14 | W 14 | W 13 | W 13 | SW 6 | W 6 |
| kJ | 3 | 6 | 5 | 5 | — | — | — | — | — | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 3 | 1 | 1 |
Swell 3 Height (m) Direction Period (s) | W 17 | — | — | — | — | — | — | — | — | — | — | — | — | — | W 14 | W 14 | W 14 | — | — | — | W 13 | W 13 | W 13 |
| kJ | 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | 4 | 4 | 4 | — | — | — | 3 | 3 | 3 |
Wind waves Height (m) Direction Period (s) | WSW 4 | WSW 4 | W 4 | W 4 | WSW 4 | WSW 5 | WSW 5 | WSW 5 | WSW 5 | NW 4 | NW 4 | NW 5 | NW 5 | NNW 4 | NW 4 | NNW 4 | NW 4 | NW 4 | NW 4 | WNW 4 | WNW 4 | — | — |
| kJ | 8 | 10 | 12 | 9 | 10 | 37 | 47 | 51 | 31 | 4 | 13 | 22 | 23 | 16 | 9 | 6 | 9 | 6 | 9 | 7 | 7 | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 143 | 143 | 305 | 305 | 292 | 292 | 292 | 346 | 26 | 131 | 137 | 144 | 782 | 143 | 140 | 140 | 140 | 140 | 143 | 299 | 281 | 293 | 281 |
Best forecast wave conditions in Mid Wales | |||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||||
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