Lackan Bay surfForecast / Mayo and Achill Island / Ireland

information circle48hr Weather and Surf, issued 6 pm Sunday 17 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 11PM is: 2.5m 12s primary swell from a West direction and 0.3m 9s secondary swell from a North-northeast direction (forecast issued at 06:00pm May 17). The wind direction is predicted to be cross-shore.

Time (IST) & DateWave HeightWave Period
Morning (17 May)--
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 Forecast

Moderate rain (total 13mm), heaviest on Tue morning. Very mild (max 14°C on Wed morning, min 6°C on Sun night). Winds increasing (calm on Sun night, fresh winds from the SE by Mon night).

Sun
17
Monday
18
Tuesday
19
Wed
20
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)
3
3
3
4
3
3
2
2
0
0
0
0
0
0
1
1
1
3
4
3
3
3
3
3
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
3
W
12
3
W
12
2.5
W
12
2.5
WNW
12
2.2
W
11
2
W
11
1.9
WNW
11
1.7
WNW
10
1.6
WNW
10
1.5
WNW
10
1.2
WNW
10
1
WNW
10
0.9
WNW
10
0.7
WNW
9
0.7
WSW
9
0.9
WSW
9
1
W
9
1
W
16
1.5
W
16
2.5
W
15
3
W
14
2.3
W
14
2.5
W
13
2.4
W
13
Wave Graph
Metric surfscale
Energy kJ
2527
2246
1882
1558
1186
951
846
659
544
416
294
205
150
78
80
132
165
496
1078
2792
3753
2094
2504
1922
Wind (km/h)
20
WNW
15
WNW
10
NW
5
WSW
10
S
10
SSE
15
SSE
20
SSE
25
SSE
30
SE
35
SE
30
SSE
15
SSE
15
SSE
20
SSW
20
SSW
15
S
20
SW
20
SW
25
SW
25
SW
30
SW
30
SW
30
SW
cross-off
cross-off
cross
glassy
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross
cross-off
cross-off
cross-off
off
off
cross-off
off
off
off
off
off
off
off
High Tide
6:56PM3.61m
7:17AM3.46m
7:41PM3.64m
8:08AM3.30m
8:30PM3.60m
9:01AM3.06m
Low Tide
1:01AM0.03m
1:18PM0.04m
1:51AM0.05m
2:03PM0.18m
2:43AM0.17m
light rain
rain showers
clear
clear
part cloud
cloud
cloud
cloud
cloud
light rain
light rain
light rain
cloud
cloud
light rain
part cloud
light rain
light rain
clear
clear
cloud
part cloud
part cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:28
5:26
5:24
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:37
9:38
9:39
9:42
1
1
1
1
2
4
2
1
Temp °C
10
10
7
7
6
6
9
12
12
9
10
10
11
11
11
13
11
12
10
11
11
11
12
14
5
6
3
5
3
3
5
7
7
3
3
4
8
8
7
8
8
8
6
6
6
5
6
8
Swell 1
Height (m)
Direction
Period (s)
3
W
12
3
W
12
2.5
W
12
2.5
WNW
12
2.2
W
11
2
W
11
1.9
WNW
11
1.7
WNW
10
1.6
WNW
10
1.5
WNW
10
1.2
WNW
10
1
WNW
10
0.9
WNW
10
0.7
WNW
9
0.7
WSW
9
0.9
WSW
9
1
W
9
1.3
WSW
9
1.5
W
16
0.2
N
8
0.2
N
8
2.3
W
14
2.5
W
13
2.4
W
13
Energy kJ
2527
2246
1882
1558
1186
951
846
659
544
416
294
205
150
78
80
132
165
277
1078
5
5
2094
2504
1922
Swell 2
Height (m)
Direction
Period (s)
0.3
NNE
9
0.3
NNE
9
0.3
NNE
9
0.3
NNE
9
0.3
NNE
9
0.3
NNE
9
0.3
NNE
9
0.3
NNE
9
0.3
NNE
9
0.3
NNE
9
0.3
NNE
9
0.3
N
9
0.3
N
9
0.5
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
0.1
N
8
Energy kJ
17
17
16
16
16
16
16
15
15
15
15
14
13
43
33
55
83
496
6
5
5
5
1
Swell 3
Height (m)
Direction
Period (s)
0.1
W
16
0.1
W
16
0.1
W
15
0.2
W
15
0.3
N
8
0.3
W
13
0.4
NW
9
0.4
W
13
0.2
N
8
Energy kJ
5
5
4
17
13
32
21
55
6
Wind waves
Height (m)
Direction
Period (s)
0.6
SSE
3
0.9
SE
4
1.1
SE
4
0.8
SSE
4
0.5
SE
4
0.5
S
3
0.4
SSE
3
0.5
S
3
1.4
WSW
10
2.5
W
15
3
W
14
2
W
8
Energy kJ
6
24
39
21
6
6
3
5
341
2792
3753
454
Nearest Offshore or Glassy
Rating
(10 max)
4
2
4
4
3
3
3
3
2
2
1
2
1
1
1
1
2
3
4
3
1
1
3
2
Distance (km)
173
189
57
0
0
0
11
11
11
40
67
165
9
2
0
0
2
0
0
173
196
196
232
232
Best forecast wave conditions in Mayo and Achill Island
Rating
(10 max)
4
4
3
1
1
1
1
1
2
3
4
Best forecast wave conditions in Ireland
Rating
(10 max)
4
2
4
4
4
3
3
3
2
2
1
2
1
1
1
1
2
3
4
3
1
1
3
2
Header Global
Rating
(10 max)
8
6
4
4
5
7
5
4
5
4
4
4
4
4
4
4
4
4
4
4
5
4
4
5
  • 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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