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Lackan Bay Surf Forecast
/ Mayo and Achill Island (14 surf breaks) /
Surf Forecasts:
Lackan Bay surfForecast / Mayo and Achill Island / Ireland
48hr Weather and Surf, issued 12 am Thursday 21 May 2026 ISTForecast update in hr min s Forecast update imminent
Lackan Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Lackan Bay sea temperature is
11.7° C
(Which is normal for this time of year)How big are the waves at Lackan Bay today?
The current surf forecast for Lackan Bay at 4AM is: 1.3m 11s primary swell from a West direction and 0.8m 9s secondary swell from a Northwest direction (forecast issued at 12:00am May 21). An open ocean swell of 0.7m 3s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (IST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 May) | 5ft (1.5m) | 11s |
| Afternoon (21 May) | 4.5ft (1.4m) | 10s |
| Evening (21 May) | 4ft (1.2m) | 10s |
Table - waves today at Lackan Bay. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 7mm), mostly falling on Thu afternoon. Very mild (max 17°C on Sat afternoon, min 11°C on Fri night). Mainly fresh winds. | ||||||||||||||||||||||||
Thursday 21 | Friday 22 | Saturday 23 | ||||||||||||||||||||||
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 | 4 PM | 7 PM | 10 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
W 12 | W 11 | WSW 11 | WSW 11 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 11 | WSW 11 | WSW 11 | WSW 11 | WSW 10 | WSW 11 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 9 | WSW 10 | WSW 10 | WSW 9 | W 9 | |
519 | 410 | 400 | 487 | 400 | 370 | 306 | 306 | 326 | 353 | 359 | 359 | 302 | 296 | 302 | 237 | 227 | 227 | 150 | 110 | 197 | 242 | 216 | 246 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | cross-off | cross-off | cross-off | cross-off | off | off | off | cross-off | |
High Tide | 9:58AM2.80m | 10:21PM3.34m | 11:02AM2.57m | 11:26PM3.19m | 12:14PM2.43m | |||||||||||||||||||
Low Tide | 3:42AM0.36m | 3:42PM0.59m | 4:48AM0.56m | 4:42PM0.81m | 6:03AM0.70m | 5:54PM0.97m | ||||||||||||||||||
 | |  | | |  | |  | |  | | | | | |  | | |  | |  | | | | |
 | — | 5:24 | — | — | — | — | — | — | — | 5:22 | — | — | — | — | — | — | — | 5:20 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 9:43 | — | — | — | — | — | — | — | 9:45 | — | — | — | — | — | — | — | 9:46 | — |
1 | 1 | — | — | — | 2 | 2 | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 12 | 13 | 14 | 15 | 16 | 15 | 15 | 14 | 12 | 13 | 13 | 14 | 16 | 15 | 14 | 13 | 12 | 11 | 11 | 14 | 16 | 17 | 16 | 15 |
7 | 9 | 11 | 11 | 13 | 12 | 11 | 9 | 7 | 9 | 10 | 10 | 12 | 11 | 11 | 11 | 10 | 8 | 8 | 10 | 11 | 12 | 13 | 13 | |
Swell 1 Height (m) Direction Period (s) | W 12 | W 11 | WSW 11 | WSW 11 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 11 | WSW 11 | WSW 11 | WSW 11 | WSW 10 | WSW 11 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 9 | WSW 10 | N 6 | — | W 9 |
 kJ | 519 | 410 | 400 | 487 | 400 | 370 | 306 | 306 | 326 | 353 | 359 | 359 | 302 | 296 | 302 | 237 | 227 | 227 | 150 | 110 | 197 | 1 | — | 246 |
Swell 2 Height (m) Direction Period (s) | NW 6 | NW 9 | NW 8 | NW 8 | NW 8 | NW 7 | NW 7 | NW 7 | NW 7 | NNW 7 | NNW 7 | NNW 7 | NNW 7 | NNW 6 | N 6 | N 6 | N 6 | N 6 | W 11 | WSW 11 | N 6 | — | — | — |
| kJ | 32 | 93 | 80 | 73 | 28 | 19 | 13 | 13 | 8 | 5 | 5 | 5 | 5 | 4 | 1 | 1 | 1 | 1 | 64 | 40 | 1 | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | N 8 | — | — | NNW 10 | NNW 9 | NNW 9 | NNW 9 | NNW 9 | N 9 | N 8 | — | — | — | — | N 8 | — | — | W 16 | N 6 | — | — | — | — |
| kJ | — | 1 | — | — | 10 | 17 | 8 | 8 | 8 | 1 | 1 | — | — | — | — | 1 | — | — | 5 | 1 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SE 3 | SSE 3 | S 3 | SSE 3 | S 3 | S 3 | SSE 3 | SE 4 | SSE 4 | SSE 4 | SSE 4 | SSE 3 | S 3 | S 3 | — | — | — | SSW 3 | SSW 3 | S 3 | — | WSW 10 | WSW 9 | — |
| kJ | 4 | 10 | 6 | 4 | 1 | 4 | 9 | 14 | 21 | 17 | 8 | 3 | 3 | 1 | — | — | — | 1 | 3 | 3 | — | 242 | 216 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 11 | 2 | 2 | 2 | 2 | 2 | 9 | 9 | 2 | 2 | 2 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Mayo and Achill Island | ||||||||||||||||||||||||
Best forecast wave conditions in Ireland | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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Live Wind Speed (km/h)
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Ocean Swells (m)- Wind Speed (km/h)
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