- Forecast
- Maps
- Live
- Weather State
- Spot Information
Surf Forecasts:
Harlech surfForecast / Wales – Mid / UK
48hr Weather and Surf, issued 6 pm Thursday 21 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
12.6° 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 9PM is: 0.7m 8s primary swell from a Southwest direction and 0.1m 15s secondary swell from a West direction (forecast issued at 06:00pm May 21). The wind direction is predicted to be cross-offshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 May) | - | - |
| Afternoon (21 May) | 3ft (0.9m) | 7s |
| Evening (21 May) | 2.5ft (0.7m) | 8s |
Table - waves today at Harlech. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Very mild (max 17°C on Fri morning, min 12°C on Fri night). Wind will be generally light. | ||||||||||||||||||||||||
Thu 21 | Friday 22 | Saturday 23 | Sun 24 | |||||||||||||||||||||
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 7 | SW 8 | SW 8 | SW 9 | WSW 9 | SW 9 | SW 10 | SW 10 | SW 10 | SW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | SW 10 | WSW 10 | WSW 9 | SW 9 | SW 9 | SW 9 | WSW 9 | WSW 9 | WSW 9 | |
77 | 59 | 50 | 61 | 33 | 87 | 110 | 106 | 87 | 110 | 41 | 39 | 38 | 38 | 64 | 46 | 36 | 33 | 21 | 21 | 20 | 8 | 8 | 7 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-on | cross-on | cross-on | cross | cross | cross-on | cross | cross-on | cross-on | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-on | cross-on | |
High Tide | 00:33AM4.08m | 1:07PM3.44m | 1:33AM3.78m | 2:15PM3.15m | 2:44AM3.56m | |||||||||||||||||||
Low Tide | 7:28PM0.91m | 8:12AM0.66m | 8:27PM1.08m | 9:16AM0.80m | 9:31PM1.20m | 10:22AM0.88m | ||||||||||||||||||
 |  |  |  | | | | | | | | | |  | | | | |  | | | | | | |
 | — | — | — | — | 5:09 | — | — | — | — | — | — | — | 5:07 | — | — | — | — | — | — | — | 5:07 | — | — | — |
 | — | 9:15 | — | — | — | — | — | — | — | 9:16 | — | — | — | — | — | — | — | 9:17 | — | — | — | — | — | 9:20 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 16 | 16 | 16 | 16 | 15 | 15 | 16 | 17 | 17 | 16 | 14 | 13 | 13 | 12 | 14 | 15 | 15 | 14 | 12 | 12 | 12 | 12 | 15 | 17 |
14 | 15 | 15 | 15 | 13 | 14 | 14 | 16 | 16 | 16 | 13 | 11 | 12 | 11 | 12 | 14 | 14 | 13 | 11 | 11 | 11 | 11 | 14 | 16 | |
Swell 1 Height (m) Direction Period (s) | — | SW 8 | SW 8 | SW 9 | WSW 9 | SW 9 | SW 10 | SW 10 | SW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | SW 10 | WSW 10 | WSW 9 | SW 9 | SW 9 | SW 9 | WSW 9 | WSW 9 | WSW 9 |
 kJ | — | 59 | 50 | 61 | 33 | 87 | 110 | 106 | 87 | 63 | 41 | 39 | 38 | 38 | 64 | 46 | 36 | 33 | 21 | 21 | 20 | 8 | 8 | 7 |
Swell 2 Height (m) Direction Period (s) | — | — | W 15 | W 15 | SW 4 | — | — | — | — | — | SW 4 | — | WSW 4 | SW 4 | — | — | — | — | WSW 4 | WSW 4 | WSW 4 | WSW 4 | WSW 3 | — |
| kJ | — | — | 4 | 4 | 6 | — | — | — | — | — | 9 | — | 2 | 4 | — | — | — | — | 1 | 3 | 1 | 1 | 1 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 14 | W 14 | W 14 | W 14 | W 14 | W 14 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 4 | 4 | 4 | 4 | 4 | 4 |
Wind waves Height (m) Direction Period (s) | SW 7 | — | — | — | SSE 2 | — | — | — | — | SW 10 | — | SW 4 | SW 4 | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 77 | — | — | — | 1 | — | — | — | — | 110 | — | 8 | 5 | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 181 | 137 | 140 | 26 | 125 | 80 | 137 | 0 | 137 | 26 | 26 | 14 | 61 | 26 | 26 | 80 | 137 | 26 | 26 | 137 | 125 | 125 | 125 | 130 |
Best forecast wave conditions in Mid Wales | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Harlech surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Nearest