Lackan Bay surfForecast / Mayo and Achill Island / Ireland

information circle48hr Weather and Surf, issued 6 pm Monday 18 May 2026 IST
Forecast 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 normal for this time of year)

How big are the waves at Lackan Bay today?

The current surf forecast for Lackan Bay at 2AM is: 0.9m 10s primary swell from a West-northwest direction and 0.2m 9s secondary swell from a North direction (forecast issued at 06:00pm May 18). An open ocean swell of 0.9m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (IST) & DateWave HeightWave Period
Morning (19 May)2.5ft (0.8m)9s
Afternoon (19 May)3.5ft (1.0m)9s
Evening (19 May)5ft (1.5m)16s

Table - waves today at Lackan Bay. (Swell directed towards the surf break)


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Moderate rain (total 13mm), heaviest on Mon night. Very mild (max 15°C on Wed afternoon, min 9°C on Mon afternoon). Winds decreasing (fresh winds from the SE on Mon night, light winds from the SSE by Wed night).

Mon
18
Tuesday
19
Wednesday
20
Thu
21
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
Rating
(10 max)
0
0
0
0
0
0
0
0
1
2
4
4
3
4
4
3
3
3
3
1
1
1
1
1
Swell
Height Map
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
1.6
WNW
10
1.5
WNW
10
1.2
WNW
10
1
WNW
10
0.9
WNW
9
0.6
WNW
9
0.8
WSW
9
0.9
WSW
9
1.1
W
9
1
W
16
1.5
W
16
2.2
W
15
2.5
W
14
2.5
W
14
2.5
W
13
2.3
W
13
2.1
W
12
2
W
12
1.8
W
12
1.5
W
11
1.4
W
11
1.3
WSW
11
1.3
WSW
11
1.4
WSW
10
Wave Graph
Metric surfscale
Energy kJ
482
416
294
205
147
68
103
132
203
496
1078
2089
2811
2659
2149
1766
1320
1136
880
596
466
400
392
400
Wind (km/h)
25
SSE
35
SE
35
SE
20
SSE
15
SSE
20
SSE
20
SSW
25
SSW
15
S
15
SSW
20
WSW
20
SW
30
SW
25
WSW
20
SW
25
SW
25
WSW
15
SSW
15
SSE
25
SSE
20
S
20
S
20
S
20
S
cross-off
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
off
off
off
off
off
off
off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
7:41PM3.64m
8:08AM3.30m
8:30PM3.60m
9:01AM3.06m
9:23PM3.49m
9:58AM2.80m
Low Tide
1:18PM0.04m
1:51AM0.05m
2:03PM0.18m
2:43AM0.17m
2:50PM0.38m
3:42AM0.36m
cloud
light rain
light rain
light rain
cloud
light rain
light rain
light rain
light rain
light rain
clear
part cloud
cloud
cloud
cloud
rain showers
part cloud
cloud
cloud
light rain
cloud
cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:26
5:24
5:24
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:38
9:39
9:42
9:43
1
2
1
2
2
1
1
1
1
1
Temp °C
11
9
10
11
11
11
13
13
12
11
10
10
11
11
12
12
15
13
13
12
14
14
14
15
6
2
3
7
8
7
9
9
9
8
6
5
5
6
8
7
10
11
11
8
11
11
11
12
Swell 1
Height (m)
Direction
Period (s)
1.6
WNW
10
1.5
WNW
10
1.2
WNW
10
1
WNW
10
0.9
WNW
9
0.6
WNW
9
0.8
WSW
9
0.9
WSW
9
1.1
W
9
1.1
W
10
1.5
W
16
2.2
W
15
2.5
W
14
2.5
W
14
2.5
W
13
2.3
W
13
2.1
W
12
2
W
12
1.8
W
12
1.5
W
11
1.4
W
11
1.3
WSW
11
1.3
WSW
11
1.4
WSW
10
Energy kJ
482
416
294
205
147
68
103
132
203
231
1078
2089
2811
2659
2149
1766
1320
1136
880
596
466
400
392
400
Swell 2
Height (m)
Direction
Period (s)
0.3
NNE
9
0.3
NNE
9
0.3
NNE
9
0.2
N
9
0.2
N
9
0.6
WSW
9
0.4
WNW
9
0.4
W
13
0.4
W
16
1
W
16
0.2
N
8
0.2
N
8
0.2
N
8
0.2
N
8
0.2
N
8
0.1
N
8
0.4
NW
6
0.4
NW
6
0.4
NW
6
0.5
NW
9
0.5
NW
8
Energy kJ
15
15
15
6
6
61
33
55
82
496
6
5
5
5
5
1
9
13
14
38
28
Swell 3
Height (m)
Direction
Period (s)
0.1
W
16
0.1
W
16
0.1
W
15
0.2
W
15
0.2
N
8
0.3
W
13
0.4
NW
9
0.4
W
13
0.2
N
8
0.1
N
8
0.1
N
10
0.1
NW
9
0.1
N
7
Energy kJ
5
5
4
17
6
32
21
55
6
1
2
3
1
Wind waves
Height (m)
Direction
Period (s)
0.4
SE
3
0.7
SE
3
1
SE
4
1
SE
4
0.6
SE
4
0.7
SE
4
0.6
SSE
4
0.3
SSW
3
0.4
SSW
3
1.5
W
10
1.1
WSW
5
0.5
S
3
0.4
SSE
3
0.4
SSE
3
0.1
SE
4
Energy kJ
2
12
34
35
12
14
11
2
3
441
57
4
3
3
1
Nearest Offshore or Glassy
Rating
(10 max)
2
1
1
2
1
1
1
2
2
3
4
4
1
4
4
1
3
3
3
3
2
2
2
2
Distance (km)
11
53
203
2
2
2
2
2
2
2
0
0
196
0
0
255
0
0
0
17
2
2
2
2
Best forecast wave conditions in Mayo and Achill Island
Rating
(10 max)
2
1
1
1
2
2
3
4
4
4
4
3
3
3
1
2
2
2
2
Best forecast wave conditions in Ireland
Rating
(10 max)
2
2
1
2
1
1
1
2
2
3
4
4
1
4
4
4
3
3
3
3
2
2
2
Header Global
Rating
(10 max)
5
5
4
4
4
4
4
4
5
4
5
5
5
4
5
5
4
5
5
4
4
5
5
4
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

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