Bunatrahir Bay surfForecast / Mayo and Achill Island / Ireland

information circle48hr Weather and Surf, issued 6 am Saturday 16 May 2026 IST
Forecast update in hr  min  s Forecast update imminent
Bunatrahir Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Bunatrahir Bay sea temperature is
11.6° C
(Which is normal for this time of year)

How big are the waves at Bunatrahir Bay today?

The current surf forecast for Bunatrahir Bay at 3PM is: 1.0m 13s primary swell from a West direction and 0.6m 10s secondary swell from a North direction, 1.6m 7s secondary swell from a West direction (forecast issued at 06:00am May 16). The wind direction is predicted to be cross-shore.

Time (IST) & DateWave HeightWave Period
Morning (16 May)4.5ft (1.3m)8s
Afternoon (16 May)3.5ft (1.0m)13s
Evening (16 May)8ft (2.5m)11s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Moderate rain (total 19mm), heaviest on Mon night. Very mild (max 13°C on Mon afternoon, min 6°C on Sun night). Winds decreasing (fresh winds from the W on Sat afternoon, light winds from the W by Sun night).

Saturday
16
Sunday
17
Monday
18
Tue
19
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
1 AM
Rating
(10 max)
1
2
0
0
0
1
1
!
!
!
!
!
2
2
3
4
3
3
3
2
1
1
0
1
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)
1
W
8
1
W
8
1.3
WNW
8
1.6
WNW
7
1.1
W
12
2.3
W
12
2.5
W
10
3.5
W
13
3.5
W
13
3.5
W
12
3.5
W
13
3.5
W
13
3
W
12
3
W
12
2.5
W
12
2.5
W
11
2.4
WNW
11
2.2
WNW
11
2.1
WNW
11
1.9
WNW
10
1.7
WNW
10
1.6
WNW
10
1.4
WNW
10
1.1
WNW
10
Wave Graph
Metric surfscale
Energy kJ
115
121
196
232
365
1469
1481
3974
4514
4016
3711
3300
2655
2405
1989
1656
1291
1066
954
754
610
473
356
245
Wind (km/h)
10
WSW
10
SW
25
WNW
30
W
30
W
30
W
25
W
25
W
20
W
20
WSW
20
WSW
25
WSW
25
WNW
15
WNW
10
WNW
5
W
5
SSW
10
S
15
SSE
15
SSE
20
SSE
20
SE
30
ESE
20
SE
cross-off
cross-off
cross-on
cross
cross
cross
cross
cross
cross
cross-off
cross-off
cross-off
cross
cross
cross-on
cross-off
cross-off
off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
5:40AM3.45m
6:11PM3.45m
6:28AM3.48m
6:54PM3.57m
7:16AM3.41m
7:40PM3.60m
Low Tide
11:51AM-0.02m
00:13AM0.12m
12:34PM-0.02m
1:01AM0.03m
1:17PM0.05m
cloud
cloud
light rain
cloud
cloud
rain showers
clear
cloud
cloud
cloud
light rain
thunderstorm
light rain
rain showers
clear
clear
clear
clear
cloud
cloud
cloud
light rain
light rain
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:31
5:31
5:28
5:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:36
9:37
9:38
9:40
1
1
3
3
1
1
1
4
3
Temp °C
10
10
10
11
11
10
9
8
8
8
8
10
9
10
8
7
6
6
9
12
13
10
9
10
8
7
5
4
4
3
2
2
2
3
3
4
3
6
5
5
3
3
5
7
8
6
3
6
Swell 1
Height (m)
Direction
Period (s)
1
W
8
1
W
8
0.6
N
10
0.8
WNW
13
1.1
W
12
0.8
WNW
15
1.5
W
14
0.4
NNE
10
0.4
NNE
10
3.5
W
12
3.5
W
13
3.5
W
13
3
W
12
3
W
12
2.5
W
12
2.5
W
11
2.4
WNW
11
2.2
WNW
11
2.1
WNW
11
1.9
WNW
10
1.7
WNW
10
1.6
WNW
10
1.4
WNW
10
1.1
WNW
10
Energy kJ
115
121
75
232
365
288
912
33
32
4016
3711
3300
2655
2405
1989
1656
1291
1066
954
754
610
473
356
245
Swell 2
Height (m)
Direction
Period (s)
0.7
N
7
0.7
N
10
0.6
WNW
14
0.6
N
10
0.5
N
10
0.5
N
10
0.5
N
10
0.4
NNE
10
0.4
NNE
10
0.4
NNE
10
0.4
NNE
9
0.4
NNE
9
0.4
NNE
9
0.4
NNE
9
0.3
NNE
9
0.4
NNE
9
0.4
NNE
9
0.4
NNE
9
0.4
NNE
9
0.4
NNE
9
0.4
NNE
9
0.4
NNE
9
Energy kJ
51
100
147
75
53
52
51
31
31
31
29
28
28
28
16
26
26
26
31
26
26
25
Swell 3
Height (m)
Direction
Period (s)
0.2
WNW
16
0.4
WNW
15
0.1
W
16
0.1
W
16
0.2
W
15
Energy kJ
24
71
5
5
17
Wind waves
Height (m)
Direction
Period (s)
1.3
WNW
8
1.6
WNW
7
1.6
W
7
2.3
W
12
2.5
W
10
3.5
W
13
3.5
W
13
0.3
SE
3
0.5
SE
3
0.9
SE
4
Energy kJ
196
212
240
1469
1481
3974
4514
1
5
22
Nearest Offshore or Glassy
Rating
(10 max)
1
2
1
1
1
1
1
2
1
2
5
4
4
4
4
4
3
3
3
3
3
2
1
1
Distance (km)
0
0
42
157
263
266
203
203
182
203
26
179
179
179
9
0
0
0
0
21
26
20
61
170
Best forecast wave conditions in Mayo and Achill Island
Rating
(10 max)
1
2
4
4
4
3
3
Best forecast wave conditions in Ireland
Rating
(10 max)
1
2
1
1
1
2
2
2
5
4
4
4
4
4
4
3
3
3
3
2
1
1
Header Global
Rating
(10 max)
5
5
4
5
5
6
5
5
5
5
6
9
9
7
4
4
5
6
7
4
5
4
4
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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