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Surf Forecasts:
Llandanwg surfForecast / Wales – Mid / UK
48hr Weather and Surf, issued 6 am Wednesday 20 May 2026 BSTForecast update in hr min s Forecast update imminent
Llandanwg surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Llandanwg sea temperature is
12.5° C
(Which is 1.5°C warmer than normal for this time of year)How big are the waves at Llandanwg today?
The current surf forecast for Llandanwg at 12PM is: 1.5m 6s primary swell from a West-southwest direction (forecast issued at 06:00am May 20). The wind direction is predicted to be onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 May) | 5ft (1.6m) | 6s |
| Afternoon (20 May) | 4.5ft (1.4m) | 6s |
| Evening (20 May) | 3.5ft (1.0m) | 6s |
Table - waves today at Llandanwg. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 4mm), 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). | ||||||||||||||||||||||||
Wednesday 20 | Thursday 21 | Friday 22 | Sat 23 | |||||||||||||||||||||
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 | 4 PM | 7 PM | 10 PM | 1 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
WSW 9 | WSW 9 | WSW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 5 | SW 5 | SW 5 | SW 6 | SW 7 | SW 7 | SW 8 | SW 8 | SW 9 | WSW 10 | SW 9 | SW 10 | SW 10 | SW 10 | WSW 10 | WSW 10 | WSW 10 | |
497 | 378 | 166 | 176 | 147 | 98 | 52 | 47 | 30 | 45 | 66 | 61 | 62 | 46 | 50 | 65 | 35 | 71 | 73 | 102 | 108 | 72 | 41 | 39 | |
Wind (km/h) | ||||||||||||||||||||||||
on | on | on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-off | cross-off | cross | cross-on | on | on | cross-on | cross-on | cross-on | |
High Tide | 11:18AM4.19m | 11:39PM4.36m | 12:10PM3.82m | 00:33AM4.08m | 1:07PM3.44m | |||||||||||||||||||
Low Tide | 6:13AM0.33m | 6:32PM0.71m | 7:11AM0.49m | 7:28PM0.91m | 8:12AM0.66m | 8:27PM1.08m | ||||||||||||||||||
 |  |  |  |  | |  | |  | |  | | | |  |  | | | | | | | | | |
 | 5:11 | — | — | — | — | — | — | — | 5:11 | — | — | — | — | — | — | — | 5:09 | — | — | — | — | — | — | 5:07 |
 | — | — | — | — | — | 9:14 | — | — | — | — | — | — | — | 9:15 | — | — | — | — | — | — | — | 9:16 | — | 9:17 |
1 | — | 1 | 1 | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 11 | 11 | 12 | 13 | 13 | 12 | 12 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 16 | 16 | 15 | 16 | 17 | 17 | 16 | 15 | 14 | 14 |
5 | 7 | 6 | 7 | 8 | 9 | 9 | 7 | 9 | 9 | 11 | 12 | 14 | 16 | 15 | 14 | 13 | 15 | 15 | 16 | 15 | 14 | 14 | 14 | |
Swell 1 Height (m) Direction Period (s) | — | — | — | — | — | — | WSW 8 | SW 5 | WSW 8 | WSW 5 | WSW 7 | WSW 7 | — | SW 8 | SW 8 | SW 9 | WSW 10 | SW 9 | SW 10 | SW 10 | SW 10 | WSW 10 | WSW 10 | WSW 10 |
 kJ | — | — | — | — | — | — | 28 | 47 | 26 | 15 | 42 | 47 | — | 46 | 50 | 65 | 35 | 71 | 73 | 102 | 108 | 72 | 41 | 39 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | WSW 9 | SW 9 | W 11 | — | — | — | — | W 15 | W 15 | SW 4 | — | — | — | — | SW 4 | SW 4 | SW 4 |
| kJ | — | — | — | — | — | — | — | 32 | 20 | 10 | — | — | — | — | 4 | 4 | 4 | — | — | — | — | 3 | 4 | 4 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | WSW 12 | WSW 11 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | 13 | 13 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | WSW 9 | WSW 9 | WSW 6 | SW 6 | SW 6 | SW 6 | SW 6 | S 3 | SW 5 | SW 5 | SW 6 | SW 7 | SW 7 | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 497 | 378 | 166 | 176 | 147 | 98 | 52 | 1 | 30 | 45 | 66 | 61 | 62 | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 303 | 300 | 277 | 374 | 262 | 262 | 41 | 60 | 60 | 150 | 150 | 136 | 138 | 137 | 124 | 1 | 136 | 1 | 136 | 25 | 142 | 25 | 25 | 78 |
Best forecast wave conditions in Mid Wales | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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