Surf Forecasts:
How big are the waves at Harlech today (16 Sep):
- Morning surf: Morning surf (16 Sep, local time) - 3ft (0.9m), 5s period with NW swell.
- Afternoon surf: Afternoon surf (16 Sep, local time) - 2ft (0.6m), 5s period with W swell.
- Evening surf: Evening surf (16 Sep, local time) - 3ft (0.9m), 4s period with WSW swell.
The current surf forecast for Harlech at 8PM is: 0.8m 4s primary swell from a West-southwest direction and 0.3m 4s secondary swell from a Northwest direction (forecast issued at 12:00pm September 16). The wind direction is predicted to be cross-onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (16 Sep) | 3ft (0.9m) | 5s |
| Afternoon (16 Sep) | 2ft (0.6m) | 5s |
| Evening (16 Sep) | 3ft (0.9m) | 4s |
Table - waves today at Harlech. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 23mm), heaviest during Fri afternoon. Very mild (max 17°C on Fri afternoon, min 13°C on Wed night). Winds increasing (light winds from the NW on Wed morning, strong winds from the SW by Fri afternoon). | |||||||||||||||||||||
Wed 16 | Thursday 17 | Friday 18 | |||||||||||||||||||
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 5 | WNW 5 | W 5 | WSW 4 | WSW 5 | WSW 5 | WSW 6 | W 6 | W 6 | WSW 6 | WSW 6 | W 6 | W 6 | W 6 | W 6 | W 5 | WSW 5 | SW 6 | SW 7 | WSW 7 | WSW 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 35 | 25 | 16 | 13 | 46 | 83 | 142 | 130 | 106 | 126 | 140 | 91 | 121 | 92 | 86 | 71 | 59 | 133 | 323 | 362 | 302 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | 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 | 11:49AM3.87m | 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 | ||||||||||||||||
 |  |  | |  |  | |  | | | | | | | | | |  |  | |  | |
 | 6:50 | — | — | — | — | — | 6:52 | — | — | — | — | — | — | — | 6:54 | — | — | — | — | — | — |
 | — | — | — | 7:30 | — | — | — | — | — | — | — | 7:28 | — | — | — | — | — | — | — | 7:25 | — |
mm | 1 | — | — | — | — | 1 | 4 | — | — | — | 1 | — | — | — | — | — | — | 1 | 11 | 3 | — |
Temp °C | 14 | 15 | 15 | 14 | 15 | 14 | 15 | 13 | 14 | 14 | 14 | 15 | 14 | 13 | 13 | 13 | 15 | 14 | 15 | 17 | 16 |
Feels °C | 11 | 11 | 11 | 10 | 10 | 9 | 10 | 8 | 8 | 7 | 8 | 10 | 8 | 8 | 8 | 9 | 11 | 7 | 8 | 13 | 12 |
Swell 1 Height (m) Direction Period (s) | WSW 5 | WSW 9 | WSW 8 | NW 4 | NNW 5 | — | — | — | — | — | — | — | — | — | — | — | NW 5 | — | — | — | — |
| kJ | 11 | 8 | 6 | 3 | 2 | — | — | — | — | — | — | — | — | — | — | — | 9 | — | — | — | — |
Swell 2 Height (m) Direction Period (s) | WSW 9 | — | W 9 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 16 | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NW 5 | WNW 5 | W 5 | WSW 4 | WSW 5 | WSW 5 | WSW 6 | W 6 | W 6 | WSW 6 | WSW 6 | W 6 | W 6 | W 6 | W 6 | W 5 | WSW 5 | SW 6 | SW 7 | WSW 7 | WSW 7 |
| kJ | 35 | 25 | 16 | 13 | 46 | 83 | 142 | 130 | 106 | 126 | 140 | 91 | 121 | 92 | 86 | 71 | 59 | 133 | 323 | 362 | 302 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 137 | 137 | 284 | 283 | 284 | 279 | 299 | 284 | 300 | 501 | 501 | 501 | 501 | 144 | 283 | 277 | 336 | 509 | 310 | 509 | 310 |
Best forecast wave conditions in Mid Wales | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
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