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Surf Forecasts:
Llangrannog surfForecast / Wales – Mid / UK
48hr Weather and Surf, issued 12 pm Wednesday 20 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
12.4° C
(Which is 1.1°C warmer than normal for this time of year)How big are the waves at Llangrannog today?
The current surf forecast for Llangrannog at 4PM is: 1.4m 13s primary swell from a West-southwest direction (forecast issued at 12:00pm May 20). The wind direction is predicted to be cross-shore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 May) | 6ft (1.8m) | 12s |
| Afternoon (20 May) | 5ft (1.5m) | 13s |
| Evening (20 May) | 4.5ft (1.3m) | 12s |
Table - waves today at Llangrannog. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Very mild (max 18°C on Thu afternoon, min 12°C on Wed morning). Winds decreasing (fresh winds from the WSW on Wed morning, calm by Fri night). | ||||||||||||||||||||||||
Wed 20 | Thursday 21 | Friday 22 | Sat 23 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
WSW 13 | WSW 13 | WSW 13 | WSW 12 | WSW 12 | WSW 11 | SW 11 | SW 7 | SW 7 | SW 7 | SW 8 | SW 8 | WSW 9 | WSW 10 | WSW 10 | SW 10 | WSW 11 | WSW 11 | WSW 11 | WSW 11 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | |
1012 | 880 | 648 | 517 | 336 | 183 | 224 | 97 | 86 | 79 | 88 | 70 | 71 | 80 | 117 | 134 | 196 | 180 | 133 | 130 | 123 | 90 | 88 | 86 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross-off | cross-off | cross-off | glassy | |
High Tide | 11:08AM3.88m | 11:29PM4.07m | 12:00PM3.54m | 00:23AM3.80m | 12:58PM3.19m | 1:24AM3.53m | ||||||||||||||||||
Low Tide | 6:12PM0.68m | 6:54AM0.47m | 7:08PM0.87m | 7:56AM0.64m | 8:09PM1.04m | |||||||||||||||||||
 | | |  |  |  |  |  | | | | | | | | | | | | | | | | | |
 | 5:16 | — | — | — | — | — | 5:15 | — | — | — | — | — | — | — | 5:13 | — | — | — | — | — | — | — | 5:13 | — |
 | — | — | — | 9:12 | — | — | — | — | — | — | — | 9:14 | — | — | — | — | — | — | — | 9:15 | — | — | — | 9:16 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 12 | 14 | 14 | 14 | 12 | 12 | 13 | 14 | 15 | 17 | 18 | 17 | 15 | 15 | 15 | 14 | 16 | 18 | 18 | 17 | 15 | 14 | 13 | 13 |
6 | 8 | 9 | 10 | 9 | 8 | 9 | 10 | 11 | 13 | 14 | 15 | 12 | 11 | 11 | 11 | 14 | 16 | 16 | 16 | 14 | 13 | 12 | 13 | |
Swell 1 Height (m) Direction Period (s) | — | — | — | WSW 12 | WSW 12 | WSW 11 | WSW 11 | WSW 10 | WSW 10 | SW 7 | W 15 | SW 8 | WSW 9 | WSW 10 | WSW 10 | SW 10 | WSW 11 | WSW 11 | WSW 11 | WSW 11 | WSW 10 | WSW 10 | WSW 10 | WSW 10 |
 kJ | — | — | — | 160 | 336 | 183 | 93 | 22 | 21 | 79 | 4 | 70 | 71 | 80 | 117 | 134 | 196 | 180 | 133 | 130 | 123 | 90 | 88 | 86 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | W 10 | — | — | W 15 | W 15 | W 15 | — | — | — | — | — | — | — | — | W 3 | — |
| kJ | — | — | — | — | — | — | — | — | 8 | — | — | 4 | 4 | 4 | — | — | — | — | — | — | — | — | 1 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | WSW 13 | WSW 13 | WSW 13 | WSW 12 | WSW 5 | S 3 | SW 11 | SW 7 | SW 7 | S 3 | SW 8 | — | SSE 2 | S 3 | S 3 | — | — | — | SW 3 | SW 3 | — | SW 3 | — | — |
| kJ | 1012 | 880 | 648 | 517 | 19 | 5 | 224 | 97 | 86 | 1 | 88 | — | 1 | 7 | 6 | — | — | — | 4 | 3 | — | 2 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 364 | 373 | 184 | 184 | 25 | 25 | 89 | 131 | 113 | 62 | 64 | 64 | 57 | 0 | 53 | 25 | 62 | 62 | 25 | 42 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Mid Wales | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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