Surf Forecasts:
How big are the waves at Harlech today (17 Aug):
- Morning surf: Morning surf (17 Aug, local time) - 1.5ft (0.4m), 5s period with WSW swell.
- Afternoon surf: Afternoon surf (17 Aug, local time) - 1.5ft (0.4m), 5s period with SW swell.
- Evening surf: Evening surf (17 Aug, local time) - 1.5ft (0.4m), 2s period with SW swell.
The current surf forecast for Harlech at 6PM is: 0.3m 5s primary swell from a West-southwest direction (forecast issued at 12:00pm August 17). The wind direction is predicted to be cross-onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Aug) | 1.5ft (0.4m) | 5s |
| Afternoon (17 Aug) | 1.5ft (0.4m) | 5s |
| Evening (17 Aug) | 1.5ft (0.4m) | 2s |
Table - waves today at Harlech. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 15mm), heaviest on Mon night. Very mild (max 18°C on Tue afternoon, min 13°C on Wed night). Wind will be generally light. | |||||||||||||||||||||
Mon 17 | Tuesday 18 | Wednesday 19 | |||||||||||||||||||
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 | SW 5 | SW 5 | WSW 5 | SW 2 | SW 4 | WSW 5 | WSW 5 | WSW 6 | WSW 6 | WSW 6 | SW 6 | WSW 4 | WSW 4 | WSW 5 | WSW 4 | WSW 4 | WSW 5 | WSW 5 | WSW 6 | WSW 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 10 | 6 | 7 | 3 | 2 | 14 | 19 | 23 | 39 | 39 | 23 | 16 | 16 | 33 | 28 | 25 | 29 | 33 | 52 | 120 | 88 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | cross-on | cross | cross-on | on | cross-on | cross-on | on | cross-on | cross-on | on | on | on | on | on | cross-on | cross-on | cross-on | on |
High Tide | 11:47AM4.01m | 00:07AM4.18m | 12:27PM3.74m | 00:47AM3.76m | 1:08PM3.43m | ||||||||||||||||
Low Tide | 6:37PM0.62m | 7:06AM0.73m | 7:09PM0.90m | 7:36AM1.06m | 7:44PM1.19m | ||||||||||||||||
 | | |  |  |  |  | | | | | | |  | |  | |  | | | | |
 | 6:00 | — | — | — | — | — | 6:01 | — | — | — | — | — | — | — | 6:03 | — | — | — | — | — | — |
 | — | — | — | 8:38 | — | — | — | — | — | — | — | 8:37 | — | — | — | — | — | — | — | 8:35 | — |
mm | — | — | — | — | — | 3 | — | — | — | — | — | — | — | 1 | 1 | 1 | 1 | — | 1 | 2 | 2 |
Temp °C | 17 | 16 | 17 | 17 | 16 | 17 | 17 | 16 | 16 | 17 | 17 | 18 | 16 | 15 | 14 | 14 | 15 | 16 | 16 | 16 | 16 |
Feels °C | 17 | 16 | 16 | 16 | 14 | 16 | 16 | 15 | 14 | 14 | 14 | 16 | 13 | 12 | 11 | 11 | 11 | 11 | 13 | 13 | 14 |
Swell 1 Height (m) Direction Period (s) | WSW 5 | SW 5 | SW 5 | WSW 5 | — | — | — | — | — | — | NW 4 | WNW 4 | — | — | W 17 | — | — | — | — | — | — |
| kJ | 10 | 6 | 7 | 3 | — | — | — | — | — | — | 3 | 2 | — | — | 6 | — | — | — | — | — | — |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | SW 2 | SW 4 | WSW 5 | WSW 5 | WSW 6 | WSW 6 | WSW 6 | SW 6 | WSW 4 | WSW 4 | WSW 5 | WSW 4 | WSW 4 | WSW 5 | WSW 5 | WSW 6 | WSW 6 |
| kJ | — | — | — | — | 2 | 14 | 19 | 23 | 39 | 39 | 23 | 16 | 16 | 33 | 28 | 25 | 29 | 33 | 52 | 120 | 88 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 306 | 306 | 346 | 445 | 285 | 501 | 411 | 142 | 26 | 26 | 637 | 463 | 310 | 310 | 143 | 142 | 310 | 309 | 292 | 305 | 284 |
Best forecast wave conditions in Mid Wales | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
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