Surf Forecasts:
How big are the waves at Harlech today (17 Sep):
- Morning surf: Morning surf (17 Sep, local time) - 4.5ft (1.3m), 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 3AM is: 1.5m 6s primary swell from a West-southwest direction (forecast issued at 06:00pm September 16). The wind direction is predicted to be onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Sep) | 4.5ft (1.3m) | 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 ForecastHeavy rain (total 29mm), heaviest during Fri afternoon. Very mild (max 17°C on Fri afternoon, min 13°C on Wed night). Mainly fresh winds. | |||||||||||||||||||
Wed 16 | Thursday 17 | Friday 18 | |||||||||||||||||
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 5 | WSW 4 | SW 5 | WSW 6 | WSW 6 | W 7 | 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 |
Wave Graph  | |||||||||||||||||||
 kJ | 21 | 23 | 57 | 101 | 177 | 171 | 108 | 123 | 132 | 110 | 121 | 108 | 86 | 66 | 59 | 123 | 279 | 418 | 329 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | cross-on | on | on | on | on | on | on | on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 00:09AM3.70m | 12:25PM3.54m | 00:47AM3.29m | 1:05PM3.19m | |||||||||||||||
Low Tide | 6:23PM0.90m | 6:36AM1.16m | 6:56PM1.20m | 7:10AM1.45m | 7:50PM1.49m | ||||||||||||||
 | |  |  | |  |  |  |  | |  |  | | | | |  | | | |
 | — | — | — | — | 6:52 | — | — | — | — | — | — | — | 6:54 | — | — | — | — | — | — |
 | — | 7:30 | — | — | — | — | — | — | — | 7:28 | — | — | — | — | — | — | — | 7:25 | — |
mm | — | — | 1 | 1 | 4 | — | — | 1 | 1 | — | — | — | — | — | — | 1 | 11 | 4 | 2 |
Temp °C | 15 | 14 | 15 | 14 | 15 | 13 | 14 | 14 | 14 | 15 | 14 | 13 | 13 | 13 | 14 | 14 | 14 | 17 | 16 |
Feels °C | 11 | 9 | 10 | 9 | 10 | 8 | 8 | 7 | 8 | 10 | 8 | 8 | 8 | 9 | 9 | 7 | 8 | 13 | 12 |
Swell 1 Height (m) Direction Period (s) | NW 5 | NW 5 | NNW 5 | — | — | — | — | — | — | — | — | — | — | — | NW 5 | NW 5 | — | — | — |
| kJ | 12 | 6 | 2 | — | — | — | — | — | — | — | — | — | — | — | 16 | 4 | — | — | — |
Swell 2 Height (m) Direction Period (s) | W 9 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | W 5 | WSW 4 | SW 5 | WSW 6 | WSW 6 | W 7 | 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 |
| kJ | 21 | 23 | 57 | 101 | 177 | 171 | 108 | 123 | 132 | 110 | 121 | 108 | 86 | 66 | 59 | 123 | 279 | 418 | 329 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 284 | 291 | 284 | 299 | 288 | 281 | 736 | 501 | 501 | 501 | 501 | 144 | 462 | 281 | 336 | 311 | 305 | 310 | 310 |
Best forecast wave conditions in Mid Wales | |||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||
Header Global | |||||||||||||||||||
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