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Surf Forecasts:
Harlech surfForecast / Wales – Mid / UK
48hr Weather and Surf, issued 6 pm Saturday 16 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 1.6°C warmer than normal for this time of year)How big are the waves at Harlech today?
The current surf forecast for Harlech at 10PM is: 0.6m 4s primary swell from a West-southwest direction (forecast issued at 06:00pm May 16). The wind direction is predicted to be onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (16 May) | - | - |
| Afternoon (16 May) | 2.5ft (0.7m) | 4s |
| Evening (16 May) | 2ft (0.6m) | 4s |
Table - waves today at Harlech. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 24mm), heaviest during Mon night. Very mild (max 12°C on Mon night, min 8°C on Sat night). Winds increasing (calm on Sun night, fresh winds from the SW by Tue morning). | ||||||||||||||||||||||||
Sat 16 | Sunday 17 | Monday 18 | Tue 19 | |||||||||||||||||||||
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 | 10 AM | 1 PM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SW 4 | WSW 4 | WSW 4 | W 4 | W 4 | W 5 | W 5 | WSW 5 | WSW 5 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 7 | WSW 6 | SW 6 | SW 6 | SW 4 | SW 5 | SSW 7 | SW 7 | SW 6 | |
16 | 12 | 14 | 16 | 24 | 27 | 27 | 24 | 44 | 81 | 65 | 53 | 40 | 42 | 26 | 29 | 16 | 9 | 9 | 6 | 18 | 116 | 124 | 196 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | on | on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | glassy | glassy | cross-on | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-on | cross | cross-on | |
High Tide | 8:35PM4.54m | 8:57AM4.68m | 9:19PM4.68m | 9:43AM4.65m | 10:04PM4.70m | 10:30AM4.48m | ||||||||||||||||||
Low Tide | 3:15PM0.25m | 3:37AM0.28m | 4:02PM0.26m | 4:27AM0.20m | 4:50PM0.36m | 5:19AM0.23m | ||||||||||||||||||
 |  |  |  |  |  | |  | | | |  | | | | | | | | | | | | | |
 | — | — | — | — | 5:16 | — | — | — | — | — | — | — | 5:15 | — | — | — | — | — | — | — | 5:13 | — | — | — |
 | — | 9:07 | — | — | — | — | — | — | — | 9:08 | — | — | — | — | — | — | — | 9:10 | — | — | — | — | — | 9:13 |
2 | 1 | 1 | — | — | — | 1 | — | 1 | 1 | 1 | 2 | 2 | 1 | — | — | — | — | — | 3 | 4 | 2 | 1 | 1 | |
Temp °C | 10 | 10 | 10 | 9 | 8 | 9 | 9 | 10 | 9 | 9 | 9 | 8 | 8 | 9 | 10 | 11 | 11 | 11 | 11 | 10 | 11 | 12 | 12 | 12 |
6 | 7 | 6 | 5 | 4 | 5 | 4 | 4 | 4 | 4 | 6 | 5 | 6 | 8 | 7 | 8 | 8 | 8 | 8 | 6 | 8 | 7 | 8 | 6 | |
Swell 1 Height (m) Direction Period (s) | — | — | — | — | — | — | — | NW 4 | NW 4 | — | — | W 12 | WSW 6 | WSW 6 | WSW 6 | WSW 7 | WSW 6 | SW 6 | SW 6 | SW 4 | SW 5 | — | — | — |
 kJ | — | — | — | — | — | — | — | 3 | 3 | — | — | 3 | 40 | 42 | 26 | 29 | 16 | 9 | 9 | 6 | 18 | — | — | — |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | W 12 | NW 4 | WNW 4 | NW 4 | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 1 | 1 | 1 | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | W 11 | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SW 4 | WSW 4 | WSW 4 | W 4 | W 4 | W 5 | W 5 | WSW 5 | WSW 5 | WSW 6 | WSW 6 | WSW 6 | — | — | — | — | — | — | — | SE 3 | SE 3 | SSW 7 | SW 7 | SW 6 |
| kJ | 16 | 12 | 14 | 16 | 24 | 27 | 27 | 24 | 44 | 81 | 65 | 53 | — | — | — | — | — | — | — | 2 | 5 | 116 | 124 | 196 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 285 | 281 | 281 | 281 | 281 | 142 | 284 | 284 | 284 | 284 | 284 | 284 | 26 | 26 | 26 | 125 | 263 | 308 | 308 | 299 | 329 | 344 | 355 | 351 |
Best forecast wave conditions in Mid Wales | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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