Surf Forecasts:
How big are the waves at Harlech today (31 Aug):
- Morning surf: Morning surf (31 Aug, local time) - 4ft (1.2m), 5s period with W swell.
- Afternoon surf: Afternoon surf (31 Aug, local time) - 2.5ft (0.7m), 9s period with WSW swell.
- Evening surf: Evening surf (31 Aug, local time) - 2ft (0.6m), 9s period with WSW swell.
The current surf forecast for Harlech at 8PM is: 0.8m 9s primary swell from a West direction (forecast issued at 12:00pm August 31). The wind direction is predicted to be onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 Aug) | 4ft (1.2m) | 5s |
| Afternoon (31 Aug) | 2.5ft (0.7m) | 9s |
| Evening (31 Aug) | 2ft (0.6m) | 9s |
Table - waves today at Harlech. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 10mm), heaviest on Mon morning. Very mild (max 18°C on Wed night, min 14°C on Mon night). Wind will be generally light. | |||||||||||||||||||||
Mon 31 | Tuesday 1 | Wednesday 2 | |||||||||||||||||||
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) | WNW 5 | WSW 9 | W 5 | W 9 | WSW 9 | WSW 8 | WSW 8 | SW 6 | WSW 4 | SW 4 | SW 5 | SW 5 | SW 5 | WSW 5 | WSW 5 | WSW 4 | SW 4 | SW 5 | SW 6 | SW 6 | SW 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 94 | 71 | 51 | 106 | 53 | 27 | 25 | 11 | 11 | 17 | 31 | 33 | 35 | 27 | 15 | 13 | 12 | 64 | 114 | 120 | 116 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross-on | cross-on |
High Tide | 10:41AM4.31m | 10:59PM4.59m | 11:19AM4.25m | 11:38PM4.41m | 11:59AM4.08m | ||||||||||||||||
Low Tide | 5:30PM0.45m | 5:59AM0.44m | 5:59PM0.60m | 6:30AM0.67m | 6:29PM0.81m | ||||||||||||||||
 | |  | |  |  | |  | | | | |  |  | | | | |  | | | |
 | 6:24 | — | — | — | — | — | 6:24 | — | — | — | — | — | — | — | 6:26 | — | — | — | — | — | — |
 | — | — | — | 8:07 | — | — | — | — | — | — | — | 8:06 | — | — | — | — | — | — | — | 8:04 | — |
mm | 1 | 1 | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | — |
Temp °C | 15 | 15 | 16 | 16 | 16 | 14 | 14 | 14 | 16 | 17 | 17 | 16 | 16 | 15 | 15 | 15 | 15 | 16 | 17 | 17 | 17 |
Feels °C | 11 | 11 | 11 | 13 | 14 | 12 | 12 | 11 | 13 | 14 | 14 | 14 | 14 | 15 | 14 | 13 | 13 | 13 | 14 | 14 | 15 |
Swell 1 Height (m) Direction Period (s) | — | WSW 9 | — | — | WSW 9 | WSW 8 | WNW 4 | SW 8 | NW 4 | — | — | — | — | WSW 5 | — | — | W 16 | W 16 | — | — | — |
| kJ | — | 71 | — | — | 53 | 27 | 1 | 2 | 1 | — | — | — | — | 27 | — | — | 5 | 5 | — | — | — |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | NW 4 | NW 4 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | 2 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | WNW 5 | WNW 5 | W 5 | W 9 | NW 4 | WNW 4 | WSW 8 | SW 6 | WSW 4 | SW 4 | SW 5 | SW 5 | SW 5 | — | WSW 5 | WSW 4 | SW 4 | SW 5 | SW 6 | SW 6 | SW 6 |
| kJ | 94 | 47 | 51 | 106 | 3 | 1 | 25 | 11 | 11 | 17 | 31 | 33 | 35 | — | 15 | 13 | 12 | 64 | 114 | 120 | 116 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 501 | 249 | 26 | 26 | 26 | 26 | 137 | 143 | 245 | 263 | 308 | 263 | 255 | 237 | 237 | 254 | 309 | 340 | 347 | 263 | 263 |
Best forecast wave conditions in Mid Wales | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
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