Surf Forecasts:
How big are the waves at Harlech today (17 Sep):
- Morning surf: Morning surf (17 Sep, local time) - 4.5ft (1.4m), 6s period with W swell.
- Afternoon surf: Afternoon surf (17 Sep, local time) - 4.5ft (1.4m), 6s period with W swell.
- Evening surf: Evening surf (17 Sep, local time) - 4.5ft (1.3m), 6s period with W swell.
The current surf forecast for Harlech at 7PM is: 1.3m 6s primary swell from a West direction (forecast issued at 12:00pm September 17). The wind direction is predicted to be onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Sep) | 4.5ft (1.4m) | 6s |
| Afternoon (17 Sep) | 4.5ft (1.4m) | 6s |
| Evening (17 Sep) | 4.5ft (1.3m) | 6s |
Table - waves today at Harlech. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 19mm), heaviest on Fri afternoon. Very mild (max 17°C on Fri night, min 12°C on Sat night). Winds decreasing (strong winds from the SW on Fri afternoon, light winds from the WNW by Sat night). | |||||||||||||||||||||
Thu 17 | Friday 18 | Saturday 19 | |||||||||||||||||||
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 6 | W 6 | W 6 | W 6 | W 6 | W 6 | W 5 | WSW 5 | SW 6 | SW 7 | WSW 7 | WSW 7 | SW 7 | WSW 8 | WSW 8 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 118 | 101 | 123 | 108 | 104 | 89 | 72 | 53 | 42 | 123 | 314 | 418 | 382 | 349 | 441 | 476 | 310 | 177 | 157 | 131 | 84 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | on | on |
High Tide | 12:25PM3.54m | 00:47AM3.29m | 1:05PM3.19m | 1:34AM2.90m | 2:01PM2.86m | ||||||||||||||||
Low Tide | 6:56PM1.20m | 7:10AM1.45m | 7:50PM1.49m | 8:13AM1.69m | 9:19PM1.69m | ||||||||||||||||
 |  |  | |  |  |  | |  | |  | |  | | | | | | | | | |
 | 6:52 | — | — | — | — | — | 6:54 | — | — | — | — | — | — | — | 6:56 | — | — | — | — | — | — |
 | — | — | — | 7:28 | — | — | — | — | — | — | — | 7:25 | — | — | — | — | — | — | — | 7:22 | — |
mm | — | 1 | — | — | — | — | — | — | — | — | 7 | 7 | 1 | — | 1 | 1 | 1 | — | — | — | — |
Temp °C | 14 | 15 | 15 | 15 | 14 | 13 | 13 | 13 | 14 | 15 | 14 | 16 | 16 | 16 | 16 | 17 | 17 | 16 | 17 | 16 | 15 |
Feels °C | 9 | 9 | 9 | 10 | 8 | 8 | 8 | 9 | 9 | 8 | 7 | 11 | 11 | 11 | 11 | 13 | 13 | 11 | 12 | 12 | 11 |
Swell 1 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | NW 5 | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | 12 | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | W 6 | W 6 | W 6 | W 6 | W 6 | W 6 | W 6 | W 5 | WSW 5 | SW 6 | SW 7 | WSW 7 | WSW 7 | SW 7 | WSW 8 | WSW 8 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 |
| kJ | 118 | 101 | 123 | 108 | 104 | 89 | 72 | 53 | 42 | 123 | 314 | 418 | 382 | 349 | 441 | 476 | 310 | 177 | 157 | 131 | 84 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 293 | 501 | 501 | 501 | 501 | 137 | 283 | 288 | 305 | 509 | 310 | 310 | 310 | 450 | 450 | 450 | 462 | 462 | 288 | 288 | 227 |
Best forecast wave conditions in Mid Wales | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
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