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Surf Forecasts:
Harlech surfForecast / Wales – Mid / UK
48hr Weather and Surf, issued 12 pm Tuesday 19 May 2026 BSTForecast update in hr min s Forecast update imminent
Harlech surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Harlech sea temperature is
12.4° C
(Which is 1.5°C warmer than normal for this time of year)How big are the waves at Harlech today?
The current surf forecast for Harlech at 5PM is: 1.5m 8s primary swell from a Southwest direction (forecast issued at 12:00pm May 19). The wind direction is predicted to be cross-onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 May) | 3.5ft (1.1m) | 7s |
| Afternoon (19 May) | 4.5ft (1.4m) | 8s |
| Evening (19 May) | 5.5ft (1.7m) | 7s |
Table - waves today at Harlech. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 9mm), mostly falling on Tue morning. Very mild (max 17°C on Thu afternoon, min 11°C on Tue night). Winds decreasing (fresh winds from the SW on Tue night, light winds from the S by Thu afternoon). | ||||||||||||||||||||||||
Tue 19 | Wednesday 20 | Thursday 21 | Fri 22 | |||||||||||||||||||||
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 | 1 AM | 4 AM | 7 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SW 7 | SW 7 | SW 8 | SW 7 | SW 7 | WSW 8 | WSW 9 | WSW 9 | WSW 9 | WSW 6 | SW 6 | SW 6 | SW 6 | SW 6 | WSW 9 | SW 6 | SW 6 | SW 7 | SW 7 | SW 7 | SW 8 | SW 9 | WSW 10 | SW 10 | |
140 | 174 | 245 | 195 | 340 | 527 | 449 | 362 | 378 | 164 | 142 | 131 | 68 | 54 | 67 | 62 | 66 | 63 | 57 | 60 | 65 | 67 | 60 | 73 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | |
High Tide | 10:30AM4.48m | 10:50PM4.58m | 11:18AM4.19m | 11:39PM4.36m | 12:10PM3.82m | 00:33AM4.08m | ||||||||||||||||||
Low Tide | 5:40PM0.52m | 6:13AM0.33m | 6:32PM0.71m | 7:11AM0.49m | 7:28PM0.91m | |||||||||||||||||||
 |  | | |  |  | |  |  | | | |  | |  | | | | | |  | | |  | |
 | 5:13 | — | — | — | — | — | 5:11 | — | — | — | — | — | — | — | 5:09 | — | — | — | — | — | — | — | 5:09 | — |
 | — | — | — | 9:13 | — | — | — | — | — | — | — | 9:14 | — | — | — | — | — | — | — | 9:15 | — | — | — | 9:16 |
1 | 2 | 1 | 1 | 2 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 12 | 12 | 13 | 12 | 11 | 11 | 11 | 11 | 12 | 12 | 13 | 12 | 12 | 12 | 12 | 13 | 14 | 16 | 17 | 16 | 16 | 16 | 15 | 16 |
8 | 7 | 8 | 6 | 4 | 4 | 6 | 6 | 7 | 7 | 9 | 8 | 9 | 9 | 8 | 9 | 11 | 13 | 14 | 15 | 15 | 15 | 13 | 14 | |
Swell 1 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | WSW 9 | WSW 8 | WSW 9 | WSW 7 | WSW 7 | — | WSW 7 | SW 7 | SW 8 | SW 9 | WSW 10 | SW 10 |
 kJ | — | — | — | — | — | — | — | — | — | — | — | — | 35 | 28 | 67 | 38 | 42 | — | 21 | 60 | 65 | 67 | 60 | 73 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | WSW 9 | WSW 12 | WSW 11 | W 11 | — | — | — | — | W 15 | W 15 | W 15 | W 15 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | 32 | 13 | 13 | 10 | — | — | — | — | 4 | 4 | 4 | 4 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | WSW 12 | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | 27 | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SW 7 | SW 7 | SW 8 | SW 7 | SW 7 | WSW 8 | WSW 9 | WSW 9 | WSW 9 | WSW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 5 | SW 6 | SW 6 | SW 7 | SW 7 | — | — | — | SE 2 | SE 2 |
| kJ | 140 | 174 | 245 | 195 | 340 | 527 | 449 | 362 | 378 | 164 | 142 | 131 | 68 | 54 | 37 | 62 | 66 | 63 | 57 | — | — | — | 1 | 1 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 358 | 344 | 339 | 284 | 285 | 285 | 303 | 301 | 346 | 337 | 278 | 263 | 43 | 61 | 61 | 150 | 151 | 142 | 140 | 26 | 0 | 0 | 80 | 0 |
Best forecast wave conditions in Mid Wales | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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