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 1AM is: 1.0m 6s primary swell from a West-southwest direction and 0.4m 8s secondary swell from a Southwest direction (forecast issued at 06:00pm September 10). 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 18mm), heaviest on Thu afternoon. Very mild (max 17°C on Thu afternoon, min 12°C on Fri night). Winds decreasing (fresh winds from the SSW on Thu afternoon, calm by Fri afternoon). | |||||||||||||||||||
Thu 10 | Friday 11 | Saturday 12 | |||||||||||||||||
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) | SW 7 | SW 7 | WSW 7 | WSW 6 | WSW 6 | WSW 6 | WSW 8 | SW 8 | WSW 8 | SW 8 | SW 8 | SW 8 | SW 4 | SW 5 | SW 6 | SW 6 | SW 7 | SW 7 | WSW 7 |
Wave Graph  | |||||||||||||||||||
 kJ | 195 | 206 | 134 | 80 | 53 | 32 | 43 | 33 | 28 | 18 | 17 | 17 | 20 | 68 | 132 | 177 | 208 | 183 | 170 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | on | glassy | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 8:23PM4.62m | 8:47AM4.31m | 9:04PM4.80m | 9:25AM4.43m | 9:43PM4.83m | ||||||||||||||
Low Tide | 3:14PM0.29m | 3:42AM-0.07m | 3:52PM0.16m | 4:19AM-0.09m | 4:27PM0.14m | ||||||||||||||
 |  |  | |  |  | |  |  | | |  | | | | | | |  | |
 | — | — | — | — | 6:41 | — | — | — | — | — | — | — | 6:43 | — | — | — | — | — | — |
 | — | 7:45 | — | — | — | — | — | — | — | 7:42 | — | — | — | — | — | — | — | 7:39 | — |
mm | 4 | 1 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | 2 | 4 | 2 | 1 | 1 |
Temp °C | 16 | 17 | 17 | 16 | 14 | 14 | 14 | 14 | 15 | 14 | 12 | 12 | 13 | 14 | 16 | 16 | 17 | 17 | 17 |
Feels °C | 12 | 14 | 15 | 14 | 13 | 13 | 12 | 13 | 14 | 13 | 10 | 9 | 9 | 10 | 12 | 12 | 14 | 15 | 16 |
Swell 1 Height (m) Direction Period (s) | — | — | — | SW 8 | SW 8 | WSW 6 | WSW 8 | SW 8 | WSW 8 | SW 8 | SW 8 | SW 8 | WSW 8 | — | — | — | — | — | — |
| kJ | — | — | — | 18 | 18 | 32 | 43 | 33 | 28 | 18 | 17 | 17 | 6 | — | — | — | — | — | — |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | SW 8 | — | — | NW 4 | WNW 4 | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | 16 | — | — | 6 | 1 | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SW 7 | SW 7 | WSW 7 | WSW 6 | WSW 6 | NW 4 | NW 4 | NW 4 | — | — | — | SW 3 | SW 4 | SW 5 | SW 6 | SW 6 | SW 7 | SW 7 | WSW 7 |
| kJ | 195 | 206 | 134 | 80 | 53 | 4 | 6 | 4 | — | — | — | 1 | 20 | 68 | 132 | 177 | 208 | 183 | 170 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 128 | 462 | 278 | 131 | 26 | 137 | 131 | 137 | 137 | 148 | 143 | 255 | 237 | 255 | 263 | 278 | 292 | 278 | 278 |
Best forecast wave conditions in Mid Wales | |||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||
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