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Barmouth Surf Forecast
/ Wales – Mid (13 surf breaks) /
Surf Forecasts:
Barmouth surfForecast / Wales – Mid / UK
48hr Weather and Surf, issued 12 pm Wednesday 20 May 2026 BSTForecast update in hr min s Forecast update imminent
Barmouth surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Barmouth sea temperature is
12.3° C
(Which is 1.3°C warmer than normal for this time of year)How big are the waves at Barmouth today?
The current surf forecast for Barmouth at 4PM is: 1.4m 6s primary swell from a Southwest direction (forecast issued at 12:00pm May 20). The wind direction is predicted to be onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 May) | 5.5ft (1.7m) | 6s |
| Afternoon (20 May) | 4.5ft (1.4m) | 6s |
| Evening (20 May) | 3.5ft (1.0m) | 6s |
Table - waves today at Barmouth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 2mm), mostly falling on Wed morning. Very mild (max 17°C on Thu afternoon, min 11°C on Wed night). Winds decreasing (fresh winds from the SW on Wed morning, calm by Fri night). | ||||||||||||||||||||||||
Wed 20 | Thursday 21 | Friday 22 | Sat 23 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
WSW 6 | SW 6 | SW 6 | WSW 6 | WSW 8 | SW 5 | SW 5 | SW 6 | SW 6 | SW 7 | SW 7 | SW 8 | SW 8 | SW 9 | WSW 9 | SW 9 | SW 9 | SW 10 | SW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | |
176 | 182 | 147 | 87 | 45 | 34 | 31 | 67 | 76 | 60 | 62 | 57 | 51 | 64 | 34 | 85 | 106 | 104 | 85 | 95 | 41 | 39 | 38 | 38 | |
Wind (km/h) | ||||||||||||||||||||||||
on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-off | cross-off | cross-off | cross | cross-on | on | on | on | cross-on | on | on | glassy | |
High Tide | 11:36AM4.66m | 11:57PM4.81m | 12:30PM4.38m | 00:50AM4.57m | 1:26PM4.09m | 1:46AM4.32m | ||||||||||||||||||
Low Tide | 6:43PM1.10m | 7:20AM0.92m | 7:35PM1.29m | 8:17AM1.09m | 8:33PM1.49m | |||||||||||||||||||
 |  | |  |  | |  | | | | | | | |  | | | | | | | | | | |
 | 5:11 | — | — | — | — | — | 5:11 | — | — | — | — | — | — | — | 5:09 | — | — | — | — | — | — | — | 5:07 | — |
 | — | — | — | 9:13 | — | — | — | — | — | — | — | 9:15 | — | — | — | — | — | — | — | 9:15 | — | — | — | 9:17 |
1 | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 12 | 12 | 13 | 12 | 12 | 11 | 12 | 13 | 14 | 15 | 17 | 17 | 16 | 15 | 15 | 15 | 16 | 17 | 16 | 15 | 14 | 13 | 13 | 13 |
6 | 6 | 8 | 8 | 10 | 8 | 9 | 10 | 11 | 13 | 14 | 17 | 16 | 13 | 13 | 14 | 15 | 16 | 16 | 15 | 14 | 12 | 13 | 13 | |
Swell 1 Height (m) Direction Period (s) | — | — | — | — | WSW 8 | SW 5 | WSW 8 | WSW 6 | — | SW 7 | — | SW 8 | SW 8 | SW 9 | WSW 9 | SW 9 | SW 9 | SW 10 | SW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 10 |
 kJ | — | — | — | — | 45 | 34 | 26 | 36 | — | 53 | — | 57 | 51 | 64 | 34 | 85 | 106 | 104 | 85 | 95 | 41 | 39 | 38 | 38 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | WSW 8 | WSW 9 | W 11 | — | — | — | — | W 15 | W 15 | SW 4 | — | — | — | — | — | SW 4 | SW 4 | SW 4 | WSW 4 |
| kJ | — | — | — | — | — | 27 | 31 | 10 | — | — | — | — | 4 | 4 | 4 | — | — | — | — | — | 4 | 4 | 4 | 3 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | WSW 12 | WSW 11 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | 13 | 13 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | WSW 6 | SW 6 | SW 6 | WSW 6 | SW 5 | S 3 | SW 5 | SW 6 | SW 6 | SW 6 | SW 7 | — | — | — | SE 2 | — | — | — | — | SW 4 | — | — | — | — |
| kJ | 176 | 182 | 147 | 87 | 42 | 1 | 29 | 67 | 76 | 60 | 62 | — | — | — | 1 | — | — | — | — | 4 | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 318 | 384 | 251 | 251 | 29 | 49 | 138 | 194 | 167 | 124 | 127 | 127 | 117 | 0 | 14 | 14 | 124 | 32 | 49 | 14 | 16 | 32 | 32 | 14 |
Best forecast wave conditions in Mid Wales | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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