Surf Forecasts:
How big are the waves at Harlech today (18 Aug):
- Morning surf: Morning surf (18 Aug, local time) - 2.5ft (0.8m), 6s period with WSW swell.
- Afternoon surf: Afternoon surf (18 Aug, local time) - 2ft (0.6m), 6s period with WSW swell.
- Evening surf: Evening surf (18 Aug, local time) - 2ft (0.6m), 4s period with WSW swell.
The current surf forecast for Harlech at 10AM is: 0.8m 6s primary swell from a West-southwest direction (forecast issued at 06:00am August 18). The wind direction is predicted to be onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Aug) | 2.5ft (0.8m) | 6s |
| Afternoon (18 Aug) | 2ft (0.6m) | 6s |
| Evening (18 Aug) | 2ft (0.6m) | 4s |
Table - waves today at Harlech. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 11mm), heaviest on Tue night. Very mild (max 17°C on Tue morning, min 12°C on Thu night). Wind will be generally light. | |||||||||||||||||||||||
Tuesday 18 | Wednesday 19 | Thursday 20 | |||||||||||||||||||||
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) | WSW 5 | WSW 5 | WSW 6 | W 6 | WSW 6 | WSW 6 | WSW 4 | WSW 4 | WSW 4 | W 4 | WSW 4 | W 4 | WSW 4 | WSW 5 | WSW 6 | WSW 6 | WSW 6 | WSW 5 | W 4 | WNW 5 | NW 6 | NNW 4 | NNW 4 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 28 | 36 | 53 | 47 | 24 | 24 | 11 | 16 | 18 | 13 | 14 | 12 | 12 | 42 | 47 | 43 | 47 | 19 | 25 | 17 | 31 | 15 | 7 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | on | on | on | cross-on | on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | cross-on | cross | cross-off | cross-off | cross-off |
High Tide | 12:27PM3.74m | 00:47AM3.76m | 1:08PM3.43m | 1:31AM3.34m | 1:55PM3.11m | ||||||||||||||||||
Low Tide | 7:06AM0.73m | 7:09PM0.90m | 7:36AM1.06m | 7:44PM1.19m | 8:11AM1.37m | 8:32PM1.46m | |||||||||||||||||
 |  | | |  | | | |  | |  | |  | | | | | | | | | |  | |
 | 6:01 | — | — | — | — | — | — | — | 6:03 | — | — | — | — | — | — | — | 6:05 | — | — | — | — | — | — |
 | — | — | — | — | — | 8:37 | — | — | — | — | — | — | — | 8:35 | — | — | — | — | — | — | — | 8:32 | — |
mm | 1 | — | — | — | — | — | 1 | 1 | 1 | — | 1 | 1 | — | — | 1 | 1 | 1 | 1 | 1 | 1 | — | — | — |
Temp °C | 18 | 17 | 16 | 17 | 17 | 17 | 15 | 14 | 14 | 14 | 15 | 16 | 17 | 16 | 16 | 15 | 14 | 13 | 16 | 16 | 17 | 16 | 13 |
Feels °C | 17 | 15 | 14 | 14 | 14 | 16 | 13 | 12 | 11 | 12 | 13 | 13 | 13 | 13 | 14 | 13 | 13 | 12 | 15 | 13 | 13 | 13 | 11 |
Swell 1 Height (m) Direction Period (s) | — | — | — | — | NW 4 | NW 4 | — | — | W 17 | WSW 6 | W 16 | W 16 | — | — | W 16 | WSW 6 | W 15 | WSW 5 | W 15 | WSW 6 | WSW 6 | WSW 7 | WSW 7 |
| kJ | — | — | — | — | 3 | 3 | — | — | 6 | 4 | 5 | 5 | — | — | 5 | 43 | 5 | 19 | 4 | 14 | 15 | 9 | 4 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | W 17 | W 16 | — | — | — | — | W 16 | — | W 15 | — | W 14 | W 14 | W 14 | W 14 |
| kJ | — | — | — | — | — | — | — | — | — | 6 | 5 | — | — | — | — | 5 | — | 4 | — | 4 | 4 | 4 | 4 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 14 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 4 |
Wind waves Height (m) Direction Period (s) | WSW 5 | WSW 5 | WSW 6 | W 6 | WSW 6 | WSW 6 | WSW 4 | WSW 4 | WSW 4 | W 4 | WSW 4 | W 4 | WSW 4 | WSW 5 | WSW 6 | — | WSW 6 | NW 4 | W 4 | WNW 5 | NW 6 | NNW 4 | NNW 4 |
| kJ | 28 | 36 | 53 | 47 | 24 | 24 | 11 | 16 | 18 | 13 | 14 | 12 | 12 | 42 | 47 | — | 47 | 3 | 25 | 17 | 31 | 15 | 7 |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 167 | 137 | 26 | 399 | 399 | 399 | 310 | 142 | 142 | 142 | 143 | 310 | 305 | 283 | 288 | 26 | 131 | 137 | 137 | 137 | 137 | 143 | 131 |
Best forecast wave conditions in Mid Wales | |||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||||
Header Global | |||||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Harlech surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Nearest