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Tywyn Surf Forecast
/ Wales – Mid (13 surf breaks) /
Surf Forecasts:
Tywyn surfForecast / Wales – Mid / UK
48hr Weather and Surf, issued 6 pm Monday 18 May 2026 BSTForecast update in hr min s Forecast update imminent
Tywyn surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Tywyn 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 Tywyn today?
The current surf forecast for Tywyn at 11PM is: 0.4m 6s primary swell from a West-southwest direction and 0.4m 4s secondary swell from a Southwest direction (forecast issued at 06:00pm May 18). An open ocean swell of 0.5m 3s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 May) | - | - |
| Afternoon (18 May) | 2ft (0.6m) | 7s |
| Evening (18 May) | 1.5ft (0.4m) | 6s |
Table - waves today at Tywyn. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 22mm), 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 |    |    |    |    | ||||||||||||||||||||
WSW 7 | WSW 7 | WSW 6 | WSW 6 | SW 7 | SW 7 | SW 8 | SW 5 | SW 5 | SW 6 | WSW 6 | WSW 8 | WSW 9 | WSW 9 | WSW 6 | WSW 6 | WSW 6 | WSW 5 | WSW 6 | WSW 5 | SW 5 | SW 6 | SW 7 | SW 8 | |
29 | 17 | 16 | 24 | 44 | 91 | 110 | 66 | 84 | 128 | 189 | 464 | 463 | 433 | 168 | 143 | 126 | 83 | 39 | 31 | 29 | 54 | 53 | 57 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross | cross-off | cross-off | cross-off | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross | cross | |
High Tide | 10:06PM4.65m | 10:32AM4.43m | 10:53PM4.53m | 11:20AM4.14m | 11:42PM4.32m | 12:12PM3.77m | ||||||||||||||||||
Low Tide | 4:53PM0.34m | 5:22AM0.20m | 5:43PM0.49m | 6:17AM0.31m | 6:35PM0.69m | 7:14AM0.46m | ||||||||||||||||||
 | |  | | | | |  | | | | |  | | |  |  | |  |  |  | |  | | |
 | — | — | — | — | 5:13 | — | — | — | — | — | — | — | 5:13 | — | — | — | — | — | — | — | 5:11 | — | — | — |
 | — | 9:09 | — | — | — | — | — | — | — | 9:10 | — | — | — | — | — | — | — | 9:13 | — | — | — | — | — | 9:14 |
1 | 1 | 2 | 2 | 2 | 2 | 1 | 3 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | — | — | — | — | — | — | 1 | — | — | |
Temp °C | 11 | 11 | 11 | 11 | 12 | 12 | 13 | 13 | 13 | 12 | 12 | 11 | 11 | 12 | 12 | 13 | 13 | 13 | 13 | 12 | 12 | 13 | 15 | 16 |
7 | 7 | 6 | 5 | 7 | 6 | 8 | 7 | 6 | 5 | 4 | 3 | 5 | 7 | 6 | 7 | 8 | 9 | 10 | 8 | 8 | 9 | 12 | 13 | |
Swell 1 Height (m) Direction Period (s) | WSW 7 | WSW 7 | WSW 6 | WSW 6 | SW 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | WSW 7 | WSW 5 | WSW 11 | — | SW 7 | — |
 kJ | 29 | 17 | 16 | 24 | 44 | — | — | — | — | — | — | — | — | — | — | — | — | — | 20 | 31 | 13 | — | 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 3 | SSE 3 | SSE 3 | S 4 | SW 7 | SW 8 | SW 5 | SW 5 | SW 6 | WSW 6 | WSW 8 | WSW 9 | WSW 9 | WSW 6 | WSW 6 | WSW 6 | WSW 5 | WSW 6 | S 3 | SW 5 | SW 6 | — | SW 8 |
| kJ | — | 4 | 5 | 6 | 9 | 91 | 110 | 66 | 84 | 128 | 189 | 464 | 463 | 433 | 168 | 143 | 126 | 83 | 39 | 2 | 29 | 54 | — | 57 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 178 | 334 | 322 | 347 | 347 | 334 | 374 | 359 | 305 | 304 | 305 | 313 | 336 | 323 | 336 | 320 | 281 | 236 | 14 | 33 | 152 | 33 | 123 | 109 |
Best forecast wave conditions in Mid Wales | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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