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Surf Forecasts:
Llangrannog surfForecast / Wales – Mid / UK
48hr Weather and Surf, issued 6 pm Sunday 17 May 2026 BSTForecast update in hr min s Forecast update imminent
Llangrannog surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Llangrannog sea temperature is
12.1° C
(Which is 1.0°C warmer than normal for this time of year)How big are the waves at Llangrannog today?
The current surf forecast for Llangrannog at 10PM is: 1.4m 6s primary swell from a West-southwest direction (forecast issued at 06:00pm May 17). The wind direction is predicted to be cross-onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 May) | - | - |
| Afternoon (17 May) | 3ft (0.9m) | 5s |
| Evening (17 May) | 4.5ft (1.3m) | 5s |
Table - waves today at Llangrannog. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 23mm), heaviest during Mon night. Very mild (max 15°C on Wed morning, min 9°C on Sun night). Winds increasing (light winds from the WSW on Sun night, strong winds from the SW by Tue afternoon). | ||||||||||||||||||||||||
Sun 17 | Monday 18 | Tuesday 19 | Wed 20 | |||||||||||||||||||||
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 5 | WSW 5 | WSW 6 | WSW 6 | WSW 7 | W 7 | WSW 7 | WSW 7 | WSW 7 | SW 6 | WSW 6 | SW 6 | SSW 7 | SW 7 | SW 8 | SW 8 | SW 7 | SW 8 | WSW 8 | WSW 9 | WSW 9 | WSW 14 | WSW 13 | WSW 13 | |
40 | 70 | 110 | 115 | 114 | 94 | 54 | 53 | 40 | 42 | 33 | 42 | 124 | 105 | 147 | 242 | 303 | 461 | 545 | 587 | 616 | 1299 | 769 | 799 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross | cross-on | cross | cross-on | cross-on | cross | cross | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross | cross | cross | cross | cross-off | cross | cross | cross | cross | |
High Tide | 9:09PM4.36m | 9:33AM4.33m | 9:54PM4.37m | 10:20AM4.16m | 10:40PM4.27m | 11:08AM3.88m | ||||||||||||||||||
Low Tide | 3:42PM0.23m | 4:07AM0.17m | 4:29PM0.33m | 4:59AM0.20m | 5:19PM0.48m | 5:55AM0.31m | ||||||||||||||||||
 |  |  | | |  |  |  | | | | | | | | | | |  | |  |  | | | |
 | — | — | — | — | 5:18 | — | — | — | — | — | — | — | 5:18 | — | — | — | — | — | — | — | 5:16 | — | — | — |
 | — | 9:07 | — | — | — | — | — | — | — | 9:08 | — | — | — | — | — | — | — | 9:10 | — | — | — | — | — | 9:12 |
1 | 1 | 1 | 1 | 1 | — | — | 1 | 1 | 1 | 2 | 3 | 3 | 1 | 1 | 1 | 1 | 1 | — | 1 | 1 | — | — | — | |
Temp °C | 11 | 10 | 9 | 9 | 9 | 9 | 10 | 11 | 12 | 11 | 10 | 11 | 12 | 12 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 13 | 15 |
5 | 4 | 4 | 4 | 5 | 6 | 7 | 7 | 7 | 6 | 4 | 4 | 6 | 7 | 8 | 6 | 5 | 4 | 5 | 8 | 6 | 7 | 6 | 9 | |
Swell 1 Height (m) Direction Period (s) | NNW 4 | NNW 4 | — | W 11 | W 11 | W 7 | WSW 7 | WSW 7 | — | W 10 | WSW 6 | SW 6 | — | WSW 8 | — | — | — | — | — | W 16 | — | — | — | — |
 kJ | 3 | 2 | — | 2 | 2 | 94 | 54 | 53 | — | 2 | 33 | 42 | — | 22 | — | — | — | — | — | 20 | — | — | — | — |
Swell 2 Height (m) Direction Period (s) | W 15 | — | — | — | W 11 | W 11 | NW 4 | NNW 4 | — | — | W 10 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 4 | — | — | — | 3 | 2 | 2 | 1 | — | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | WSW 5 | WSW 5 | WSW 6 | WSW 6 | WSW 7 | — | — | — | WSW 7 | SW 6 | S 3 | SSE 4 | SSW 7 | SW 7 | SW 8 | SW 8 | SW 7 | SW 8 | WSW 8 | WSW 9 | WSW 9 | WSW 14 | WSW 13 | WSW 13 |
| kJ | 40 | 70 | 110 | 115 | 114 | — | — | — | 40 | 42 | 5 | 25 | 124 | 105 | 147 | 242 | 303 | 461 | 545 | 587 | 616 | 1299 | 769 | 799 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 348 | 348 | 348 | 349 | 74 | 74 | 74 | 74 | 167 | 345 | 345 | 347 | 343 | 131 | 362 | 362 | 357 | 349 | 356 | 368 | 368 | 368 | 373 | 373 |
Best forecast wave conditions in Mid Wales | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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