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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 Sunday 17 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
11.8° C
(Which is slightly warmer than usual)How big are the waves at Lackan Bay today?
The current surf forecast for Lackan Bay at 6AM is: 3.5m 13s primary swell from a West direction and 0.3m 10s secondary swell from a North-northeast direction (forecast issued at 12:00am May 17). The wind direction is predicted to be offshore and the swell rating is 11.
| Time (IST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 May) | 11ft (3.5m) | 13s |
| Afternoon (17 May) | 10ft (3.0m) | 12s |
| Evening (17 May) | 8ft (2.5m) | 12s |
Table - waves today at Lackan Bay. (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 14°C on Tue afternoon, min 7°C on Sat night). Winds increasing (calm on Sun night, fresh winds from the SW by Tue afternoon). | ||||||||||||||||||||||||
Sunday 17 | Monday 18 | Tuesday 19 | ||||||||||||||||||||||
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 13 | W 13 | W 13 | W 13 | W 13 | WNW 12 | W 12 | W 12 | WNW 12 | WNW 11 | WNW 11 | WNW 11 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | WSW 9 | WSW 10 | WSW 9 | W 16 | |
3406 | 3614 | 3711 | 3300 | 2914 | 2559 | 2246 | 1882 | 1558 | 1314 | 1066 | 867 | 754 | 562 | 473 | 356 | 245 | 163 | 115 | 86 | 157 | 327 | 371 | 590 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross | glassy | glassy | cross-off | cross-off | cross | cross | cross | cross-off | cross | cross | cross-off | off | off | off | cross-off | off | |
High Tide | 6:29AM3.53m | 6:56PM3.61m | 7:17AM3.46m | 7:41PM3.64m | 8:08AM3.30m | 8:30PM3.60m | ||||||||||||||||||
Low Tide | 00:14AM0.11m | 12:35PM-0.03m | 1:01AM0.03m | 1:18PM0.04m | 1:51AM0.05m | 2:03PM0.18m | ||||||||||||||||||
 |  |  |  | |  |  |  | | |  | | | | | |  | | | | |  | | | |
 | — | 5:30 | — | — | — | — | — | — | — | 5:28 | — | — | — | — | — | — | — | 5:26 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 9:37 | — | — | — | — | — | — | — | 9:38 | — | — | — | — | — | — | — | 9:39 | — |
— | — | — | 4 | 3 | 1 | 2 | 1 | — | — | — | — | — | — | — | — | 5 | 4 | — | 1 | 1 | — | 1 | — | |
Temp °C | 8 | 7 | 7 | 9 | 9 | 10 | 10 | 8 | 8 | 7 | 7 | 9 | 12 | 13 | 13 | 10 | 9 | 10 | 11 | 12 | 13 | 14 | 11 | 12 |
2 | 2 | 3 | 3 | 3 | 4 | 5 | 5 | 6 | 5 | 5 | 6 | 7 | 8 | 8 | 4 | 3 | 4 | 7 | 8 | 6 | 7 | 8 | 7 | |
Swell 1 Height (m) Direction Period (s) | NNE 10 | NNE 10 | W 13 | W 13 | W 13 | WNW 12 | W 12 | W 12 | WNW 12 | WNW 11 | WNW 11 | WNW 11 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | WNW 9 | W 13 | W 16 | W 16 |
 kJ | 33 | 31 | 3711 | 3300 | 2914 | 2559 | 2246 | 1882 | 1558 | 1314 | 1066 | 867 | 754 | 562 | 473 | 356 | 245 | 163 | 115 | 86 | 32 | 55 | 183 | 590 |
Swell 2 Height (m) Direction Period (s) | — | — | NNE 10 | NNE 10 | NNE 10 | NNE 9 | NNE 9 | NNE 9 | NNE 9 | NNE 9 | NNE 9 | NNE 9 | NNE 9 | NNE 9 | NNE 9 | NNE 9 | NNE 9 | N 9 | N 8 | W 13 | W 13 | N 8 | W 13 | W 12 |
| kJ | — | — | 18 | 18 | 18 | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 15 | 15 | 13 | 12 | 32 | 55 | 12 | 79 | 46 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 16 | W 16 | W 15 | W 15 | W 15 | N 8 | N 8 | WNW 9 | N 8 | N 8 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 5 | 5 | 4 | 17 | 17 | 12 | 12 | 8 | 12 | 6 |
Wind waves Height (m) Direction Period (s) | W 13 | W 13 | — | — | — | — | — | — | — | — | — | — | — | — | — | SSE 2 | SE 4 | SE 4 | SE 4 | SSE 3 | WSW 9 | WSW 10 | WSW 9 | WSW 9 |
| kJ | 3406 | 3614 | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 16 | 28 | 8 | 6 | 157 | 327 | 371 | 506 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 196 | 176 | 2 | 176 | 134 | 165 | 176 | 57 | 0 | 0 | 0 | 0 | 11 | 11 | 11 | 11 | 73 | 63 | 2 | 0 | 140 | 173 | 2 | 101 |
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)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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