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Barmouth Surf Forecast
/ Wales – Mid (13 surf breaks) /
Surf Forecasts:
Barmouth surfForecast / Wales – Mid / UK
48hr Weather and Surf, issued 6 pm Monday 18 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
12.2° 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 10PM is: 0.6m 4s primary swell from a Southwest direction and 0.4m 4s secondary swell from a Southwest direction, 0.4m 3s secondary swell from a South-southeast direction (forecast issued at 06:00pm May 18). The wind direction is predicted to be cross-shore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 May) | - | - |
| Afternoon (18 May) | 2ft (0.6m) | 7s |
| Evening (18 May) | 2ft (0.6m) | 4s |
Table - waves today at Barmouth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 24mm), heaviest during Tue morning. Very mild (max 16°C on Thu morning, min 11°C on Mon afternoon). Winds decreasing (strong winds from the SW on Tue night, light winds from the SSW by Thu morning). | ||||||||||||||||||||||||
Mon 18 | Tuesday 19 | Wednesday 20 | Thu 21 | |||||||||||||||||||||
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 6 | SW 4 | SW 6 | SSW 6 | SW 7 | SW 7 | SW 6 | SW 6 | SW 7 | SW 7 | WSW 8 | WSW 9 | WSW 9 | WSW 6 | WSW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 5 | SW 6 | SW 6 | SW 7 | |
35 | 10 | 14 | 40 | 85 | 112 | 140 | 115 | 127 | 234 | 271 | 500 | 439 | 354 | 160 | 159 | 152 | 112 | 95 | 58 | 45 | 72 | 68 | 57 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross | cross | cross-on | on | cross-on | on | on | on | on | on | on | on | on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | |
High Tide | 10:13PM5.11m | 10:43AM4.89m | 11:04PM4.99m | 11:36AM4.66m | 11:57PM4.81m | 12:30PM4.38m | ||||||||||||||||||
Low Tide | 5:09PM0.86m | 5:40AM0.74m | 5:56PM0.96m | 6:28AM0.80m | 6:43PM1.10m | 7:20AM0.92m | ||||||||||||||||||
 |  |  | | | | |  | | | | |  | | | |  | |  | |  | | | | |
 | — | — | — | — | 5:13 | — | — | — | — | — | — | — | 5:11 | — | — | — | — | — | — | — | 5:11 | — | — | — |
 | — | 9:09 | — | — | — | — | — | — | — | 9:12 | — | — | — | — | — | — | — | 9:13 | — | — | — | — | — | 9:15 |
— | 1 | 1 | 2 | 3 | 2 | 1 | 4 | 1 | 1 | 2 | 1 | 1 | 1 | 1 | 1 | — | — | — | — | — | 1 | — | — | |
Temp °C | 11 | 11 | 11 | 11 | 12 | 12 | 12 | 13 | 13 | 12 | 11 | 11 | 11 | 11 | 12 | 12 | 13 | 12 | 12 | 11 | 12 | 13 | 14 | 16 |
7 | 8 | 7 | 6 | 7 | 7 | 8 | 8 | 7 | 5 | 3 | 4 | 5 | 6 | 7 | 7 | 9 | 8 | 9 | 8 | 8 | 10 | 11 | 14 | |
Swell 1 Height (m) Direction Period (s) | — | SW 6 | SW 4 | SW 6 | SW 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | WSW 10 | WSW 9 | SW 8 | — | SW 7 | — |
 kJ | — | 10 | 14 | 40 | 44 | — | — | — | — | — | — | — | — | — | — | — | — | — | 21 | 17 | 18 | — | 53 | — |
Swell 2 Height (m) Direction Period (s) | WNW 4 | — | SW 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | WSW 12 | WSW 12 | — | — | — | — |
| kJ | 1 | — | 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 27 | 13 | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SW 7 | SW 3 | SSE 3 | SE 3 | SSW 6 | SW 7 | SW 7 | SW 6 | SW 6 | SW 7 | SW 7 | WSW 8 | WSW 9 | WSW 9 | WSW 6 | WSW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 5 | SW 6 | SW 6 | SW 7 |
| kJ | 35 | 5 | 3 | 5 | 85 | 112 | 140 | 115 | 127 | 234 | 271 | 500 | 439 | 354 | 160 | 159 | 152 | 112 | 95 | 58 | 45 | 72 | 68 | 57 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 194 | 322 | 307 | 340 | 340 | 322 | 368 | 354 | 292 | 291 | 292 | 300 | 324 | 309 | 324 | 306 | 296 | 251 | 29 | 49 | 167 | 49 | 138 | 124 |
Best forecast wave conditions in Mid Wales | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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