Bunatrahir Bay surfForecast / Mayo and Achill Island / Ireland

information circle48hr Weather and Surf, issued 6 pm Friday 15 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 1AM is: 1.0m 8s primary swell from a West direction and 0.7m 7s secondary swell from a North direction (forecast issued at 06:00pm May 15). The wind direction is predicted to be cross-offshore.

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 14mm), heaviest on Sun morning. Very mild (max 12°C on Mon morning, min 6°C on Sun night). Winds increasing (calm on Fri afternoon, fresh winds from the W by Sat morning).

Fri
15
Saturday
16
Sunday
17
Mon
18
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
1
1
1
1
2
0
0
0
1
1
!
!
!
!
3
2
2
2
4
4
3
3
2
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
N
7
0.9
N
7
0.8
W
8
1
W
8
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
11
3.5
W
13
3.5
W
13
3.5
W
12
3.5
W
13
3
W
13
3
W
12
3
W
12
3
W
12
2.5
W
11
2.4
W
11
2.2
W
11
2
W
11
1.8
WNW
11
Wave Graph
Metric surfscale
Energy kJ
106
86
90
115
115
121
196
232
365
1488
1412
4011
4321
3863
3502
3265
2700
2405
2171
1786
1405
1144
951
749
Wind (km/h)
10
WNW
5
WSW
10
SSW
10
SW
10
SW
10
SW
25
WNW
30
W
30
W
30
WNW
25
W
25
W
20
WSW
20
WSW
15
W
20
WSW
25
W
25
W
15
W
10
WSW
10
WSW
10
SW
10
S
20
SSE
cross-on
glassy
off
cross-off
cross-off
cross-off
cross
cross
cross
cross
cross
cross
cross-off
cross-off
cross
cross-off
cross
cross
cross
cross-off
cross-off
cross-off
off
cross-off
High Tide
5:28PM3.27m
5:40AM3.45m
6:11PM3.45m
6:28AM3.48m
6:54PM3.57m
7:16AM3.41m
Low Tide
11:27PM0.30m
11:51AM-0.02m
00:13AM0.12m
12:34PM-0.02m
1:01AM0.03m
cloud
cloud
cloud
cloud
cloud
cloud
rain showers
part cloud
cloud
rain showers
clear
part cloud
cloud
light rain
light rain
light rain
rain showers
rain showers
rain showers
clear
clear
part cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:31
5:31
5:28
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:34
9:36
9:37
9:38
1
1
1
5
2
2
1
1
Temp °C
10
9
9
9
10
10
9
11
11
10
8
8
8
8
8
9
9
10
8
7
6
7
10
12
7
7
7
7
8
8
3
4
4
3
2
2
2
3
4
4
4
5
4
3
3
4
7
7
Swell 1
Height (m)
Direction
Period (s)
1
N
7
0.9
N
7
0.8
W
8
1
W
8
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
W
13
3
W
12
3
W
12
3
W
12
2.5
W
11
2.4
W
11
2.2
W
11
2
W
11
1.8
WNW
11
Energy kJ
106
86
90
115
115
121
75
232
365
288
912
33
32
3863
3502
3265
2700
2405
2171
1786
1405
1144
951
749
Swell 2
Height (m)
Direction
Period (s)
0.8
NW
8
0.6
NW
7
0.8
N
7
0.7
N
7
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
10
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
67
44
68
51
51
100
147
75
53
52
51
31
31
31
30
29
28
28
27
27
26
26
Swell 3
Height (m)
Direction
Period (s)
0.5
W
7
0.6
W
7
0.6
NW
7
0.1
W
16
0.2
WNW
16
0.4
WNW
15
Energy kJ
23
35
34
5
24
71
Wind waves
Height (m)
Direction
Period (s)
1.3
WNW
8
1.6
WNW
7
1.7
WNW
7
2.3
W
12
2.5
W
11
3.5
W
13
3.5
W
13
Energy kJ
196
219
293
1488
1412
4011
4321
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
2
1
1
1
3
1
2
2
5
4
4
4
4
4
4
4
3
3
3
Distance (km)
226
0
0
0
0
0
42
157
263
453
476
203
203
49
179
9
151
123
107
0
0
0
0
27
Best forecast wave conditions in Mayo and Achill Island
Rating
(10 max)
1
1
1
1
2
4
4
4
3
3
Best forecast wave conditions in Ireland
Rating
(10 max)
1
1
1
1
1
2
1
1
2
2
5
4
4
4
4
4
4
4
4
3
3
Header Global
Rating
(10 max)
6
5
5
5
5
5
4
5
6
5
5
5
4
5
6
9
9
7
4
4
5
8
7
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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