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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 Sunday 17 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 4PM is: 0.9m 4s primary swell from a West-southwest direction and 0.1m 4s secondary swell from a Northwest direction (forecast issued at 12:00pm May 17). The wind direction is predicted to be onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 May) | 2.5ft (0.8m) | 5s |
| Afternoon (17 May) | 2.5ft (0.8m) | 4s |
| Evening (17 May) | 3ft (0.9m) | 5s |
Table - waves today at Barmouth. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 34mm), heaviest during Tue night. Very mild (max 12°C on Tue morning, min 9°C on Sun night). Winds increasing (light winds from the SW on Mon afternoon, fresh winds from the SW by Tue afternoon). | ||||||||||||||||||||||||
Sun 17 | Monday 18 | Tuesday 19 | Wed 20 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
W 5 | WSW 5 | WSW 4 | WSW 5 | WSW 5 | WSW 5 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | SW 6 | SW 4 | SW 6 | SSW 6 | SSW 7 | SW 6 | SW 7 | SW 7 | SW 8 | SW 8 | WSW 9 | WSW 9 | |
28 | 19 | 34 | 56 | 46 | 37 | 46 | 36 | 33 | 27 | 16 | 15 | 9 | 10 | 31 | 74 | 81 | 127 | 322 | 303 | 440 | 515 | 595 | 475 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | on | on | on | on | on | on | on | on | on | on | cross-on | cross | cross | cross | cross-on | cross-on | on | on | on | on | on | on | on | |
High Tide | 9:03AM5.12m | 9:24PM5.14m | 9:52AM5.06m | 10:13PM5.11m | 10:43AM4.89m | 11:04PM4.99m | ||||||||||||||||||
Low Tide | 4:23PM0.82m | 4:51AM0.75m | 5:09PM0.86m | 5:40AM0.74m | 5:56PM0.96m | 6:28AM0.80m | ||||||||||||||||||
 | |  | |  | |  | | |  |  | | | | | | | | |  | |  | | | |
 | 5:16 | — | — | — | — | — | 5:15 | — | — | — | — | — | — | — | 5:13 | — | — | — | — | — | — | — | 5:11 | — |
 | — | — | — | 9:08 | — | — | — | — | — | — | — | 9:09 | — | — | — | — | — | — | — | 9:12 | — | — | — | 9:13 |
1 | 1 | 1 | 1 | 2 | 1 | 1 | 1 | 1 | — | — | — | 1 | 1 | 4 | 3 | 1 | 1 | 1 | — | 4 | 6 | 1 | 1 | |
Temp °C | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 10 | 11 | 11 | 11 | 11 | 10 | 11 | 11 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 |
6 | 5 | 4 | 5 | 6 | 6 | 7 | 6 | 7 | 8 | 8 | 8 | 8 | 6 | 7 | 8 | 8 | 7 | 5 | 6 | 7 | 5 | 6 | 6 | |
Swell 1 Height (m) Direction Period (s) | W 13 | NW 4 | NW 4 | — | W 12 | W 12 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | SW 6 | SW 4 | SW 6 | — | WSW 7 | — | — | — | — | — | — | — |
 kJ | 3 | 5 | 1 | — | 3 | 3 | 46 | 36 | 33 | 27 | 16 | 15 | 9 | 10 | 31 | — | 20 | — | — | — | — | — | — | — |
Swell 2 Height (m) Direction Period (s) | — | W 12 | — | — | — | — | W 12 | W 12 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | 3 | — | — | — | — | 3 | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | W 5 | WSW 5 | WSW 4 | WSW 5 | WSW 5 | WSW 5 | — | — | — | — | — | — | — | SE 2 | SE 3 | SSW 6 | SSW 7 | SW 6 | SW 7 | SW 7 | SW 8 | SW 8 | WSW 9 | WSW 9 |
| kJ | 28 | 19 | 34 | 56 | 46 | 37 | — | — | — | — | — | — | — | 2 | 5 | 74 | 81 | 127 | 322 | 303 | 440 | 515 | 595 | 475 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 291 | 291 | 291 | 291 | 291 | 291 | 32 | 32 | 32 | 32 | 245 | 233 | 322 | 340 | 340 | 340 | 322 | 384 | 364 | 291 | 291 | 318 | 348 | 324 |
Best forecast wave conditions in Mid Wales | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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