Surf Forecasts:
How big are the waves at Harlech today (11 Sep):
- Morning surf: Morning surf (11 Sep, local time) - 2ft (0.6m), 8s period with WSW swell.
- Afternoon surf: Afternoon surf (11 Sep, local time) - 1.5ft (0.4m), 8s period with WSW swell.
- Evening surf: Evening surf (11 Sep, local time) - 1.5ft (0.4m), 8s period with SW swell.
The current surf forecast for Harlech at 6PM is: 0.4m 8s primary swell from a West-southwest direction and 0.3m 4s secondary swell from a Northwest direction, 0.4m 4s secondary swell from a Northwest direction (forecast issued at 12:00pm September 11). The wind direction is predicted to be onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 Sep) | 2ft (0.6m) | 8s |
| Afternoon (11 Sep) | 1.5ft (0.4m) | 8s |
| Evening (11 Sep) | 1.5ft (0.4m) | 8s |
Table - waves today at Harlech. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 12mm), heaviest on Sat morning. Very mild (max 17°C on Sat morning, min 12°C on Fri night). Winds increasing (calm on Fri afternoon, fresh winds from the SW by Sat morning). | |||||||||||||||||||||
Fri 11 | Saturday 12 | Sunday 13 | |||||||||||||||||||
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) | WSW 8 | SW 8 | WSW 8 | WSW 8 | SW 8 | SW 8 | SW 4 | SW 5 | SW 6 | SW 7 | SW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | SW 6 | SW 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 44 | 33 | 28 | 27 | 17 | 17 | 25 | 68 | 132 | 208 | 244 | 205 | 142 | 96 | 59 | 40 | 29 | 17 | 17 | 11 | 10 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | on | glassy | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | on | cross-on | cross | cross-off |
High Tide | 8:47AM4.31m | 9:04PM4.80m | 9:25AM4.43m | 9:43PM4.83m | 10:03AM4.45m | ||||||||||||||||
Low Tide | 3:52PM0.16m | 4:19AM-0.09m | 4:27PM0.14m | 4:53AM0.03m | 4:59PM0.23m | ||||||||||||||||
 | |  |  |  | |  | |  | | | |  |  | | | | | | | | |
 | 6:41 | — | — | — | — | — | 6:43 | — | — | — | — | — | — | — | 6:46 | — | — | — | — | — | — |
 | — | — | — | 7:42 | — | — | — | — | — | — | — | 7:39 | — | — | — | — | — | — | — | 7:37 | — |
mm | — | — | — | — | — | — | — | — | 3 | 3 | 2 | 2 | 1 | — | 1 | — | — | — | — | — | — |
Temp °C | 15 | 15 | 16 | 15 | 13 | 12 | 13 | 14 | 16 | 17 | 17 | 17 | 17 | 16 | 17 | 16 | 16 | 17 | 17 | 16 | 15 |
Feels °C | 13 | 14 | 14 | 15 | 11 | 9 | 9 | 9 | 12 | 13 | 15 | 16 | 16 | 15 | 17 | 16 | 17 | 17 | 17 | 16 | 14 |
Swell 1 Height (m) Direction Period (s) | WSW 8 | SW 8 | WSW 8 | WSW 8 | SW 8 | SW 8 | WSW 8 | — | — | — | — | — | — | — | WSW 7 | WSW 7 | WSW 7 | WSW 7 | WSW 7 | SW 6 | SW 6 |
| kJ | 44 | 33 | 28 | 27 | 17 | 17 | 6 | — | — | — | — | — | — | — | 59 | 40 | 29 | 17 | 17 | 11 | 10 |
Swell 2 Height (m) Direction Period (s) | — | — | — | NW 4 | NW 4 | — | NW 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | W 9 |
| kJ | — | — | — | 2 | 1 | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 9 | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | — | — |
Wind waves Height (m) Direction Period (s) | NW 4 | NW 4 | NW 4 | — | — | SW 3 | SW 4 | SW 5 | SW 6 | SW 7 | SW 7 | WSW 7 | WSW 7 | WSW 7 | — | — | — | — | — | — | — |
| kJ | 5 | 6 | 4 | — | — | 1 | 25 | 68 | 132 | 208 | 244 | 205 | 142 | 96 | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 137 | 137 | 26 | 148 | 143 | 245 | 255 | 263 | 263 | 374 | 292 | 128 | 142 | 142 | 26 | 137 | 137 | 125 | 137 | 125 | 245 |
Best forecast wave conditions in Mid Wales | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
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‘Porth Neigwl: Choppy waves hadn't tidied much (from what I could see in the dark.’
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