Lackan Bay surfForecast / Mayo and Achill Island / Ireland

information circle48hr Weather and Surf, issued 12 am 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 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) & DateWave HeightWave 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 Forecast

Heavy 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
Rating
(10 max)
3
!
!
!
2
2
3
3
4
3
3
3
1
0
0
0
0
0
0
1
0
1
1
2
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
3
W
13
3.5
W
13
3.5
W
13
3.5
W
13
3
W
13
3
WNW
12
3
W
12
2.5
W
12
2.5
WNW
12
2.4
WNW
11
2.2
WNW
11
2
WNW
11
1.9
WNW
10
1.7
WNW
10
1.6
WNW
10
1.4
WNW
10
1.1
WNW
10
0.9
WNW
10
0.8
WNW
9
0.7
WNW
9
1
WSW
9
1.4
WSW
10
1.6
WSW
9
1.1
W
16
Wave Graph
Metric surfscale
Energy kJ
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)
25
W
20
WSW
15
SW
25
WSW
25
W
25
W
20
WNW
10
NW
5
NW
5
WSW
5
S
10
SSE
20
SE
20
SE
20
SE
25
SSE
30
ESE
30
SE
20
S
20
SW
30
SW
35
SW
15
SSE
30
SW
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
clear
cloud
cloud
light rain
light rain
thunderstorm
rain showers
rain showers
clear
clear
clear
cloud
cloud
cloud
cloud
cloud
light rain
light rain
cloud
light rain
rain showers
part cloud
light rain
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:30
5:28
5:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
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)
0.4
NNE
10
0.4
NNE
10
3.5
W
13
3.5
W
13
3
W
13
3
WNW
12
3
W
12
2.5
W
12
2.5
WNW
12
2.4
WNW
11
2.2
WNW
11
2
WNW
11
1.9
WNW
10
1.7
WNW
10
1.6
WNW
10
1.4
WNW
10
1.1
WNW
10
0.9
WNW
10
0.8
WNW
9
0.7
WNW
9
0.4
WNW
9
0.4
W
13
0.6
W
16
1.1
W
16
Energy 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)
0.3
NNE
10
0.3
NNE
10
0.3
NNE
10
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
NNE
9
0.3
N
9
0.3
N
8
0.3
W
13
0.4
W
13
0.3
N
8
0.5
W
13
0.4
W
12
Energy 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)
0.1
W
16
0.1
W
16
0.1
W
15
0.2
W
15
0.2
W
15
0.3
N
8
0.3
N
8
0.2
WNW
9
0.3
N
8
0.2
N
8
Energy kJ
5
5
4
17
17
12
12
8
12
6
Wind waves
Height (m)
Direction
Period (s)
3
W
13
3.5
W
13
0.3
SSE
2
0.8
SE
4
0.9
SE
4
0.6
SE
4
0.5
SSE
3
1
WSW
9
1.4
WSW
10
1.6
WSW
9
1.9
WSW
9
Energy kJ
3406
3614
1
16
28
8
6
157
327
371
506
Nearest Offshore or Glassy
Rating
(10 max)
2
1
5
4
3
4
4
4
4
3
3
3
3
2
2
2
1
1
1
1
1
1
3
2
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
Rating
(10 max)
5
4
4
4
3
3
3
1
1
3
Best forecast wave conditions in Ireland
Rating
(10 max)
2
2
5
4
4
4
4
4
4
4
3
3
3
2
2
2
1
1
1
1
1
1
3
3
Header Global
Rating
(10 max)
5
4
4
6
9
9
7
4
4
5
7
5
4
5
4
4
4
4
5
5
4
4
5
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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