Bunatrahir Bay surfForecast / Mayo and Achill Island / Ireland

information circle16 Day Weather and Surf, issued 12 pm Friday 29 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
12.5° C
(Which is slightly warmer than usual)

Bunatrahir Bay surf forecast from 29 May 2026:

  • Best quality surf: Wednesday 3 Jun, 4PM (local time) - 13ft (4.0m), 12s period, WSW swell with cross-offshore winds.
  • Most powerful swell: Thursday 4 Jun, 7PM (local time) - 18ft (5.5m), 13s period, W swell with 11,267 kJ wave energy.
  • Next surfable swell (1★+): Friday 29 May, 10PM (local time) - 4ft (1.2m), 9s period with WSW swell.

Best Forecast Surf Conditions for Bunatrahir Bay this week:

The surf forecast for Bunatrahir Bay over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (May 29) at 10PM. The primary swell is predicted to be 1.2m and 9s period with a secondary swell of 0.9m and 8s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Bunatrahir Bay in the next 16 days are 5.5m 13s and forecast to arrive on Thursday (Jun 04) at 7PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Wednesday (Jun 03) at 4AM.

Wave TypeTime (IST) & Date Wave Height & Period
Next good surf (1 star+)10PM (Fri 29th May)4ft (1.2m) 9s
Best Surf 4PM (Wed 3rd Jun)13ft (4.0m) 12s
Most Powerful 7PM (Thu 4th Jun)18ft (5.5m) 13s

Table - best surf conditions forecast for Bunatrahir Bay over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Light rain (total 2mm), mostly falling on Sun night. Very mild (max 16°C on Sun afternoon, min 12°C on Fri morning). Mainly fresh winds.

Days 4-6 Weather Summary

Light rain (total 9mm), mostly falling on Wed night. Very mild (max 16°C on Mon afternoon, min 11°C on Wed night). Winds increasing (light winds from the W on Mon night, strong winds from the SW by Wed night).

Friday
29
Saturday
30
Sunday
31
Monday
1
Tuesday
2
Wednesday
3
Thursday
4
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
2
2
3
2
2
2
2
1
1
1
0
1
3
2
!
!
!
!
!
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.8
WSW
7
1.3
WSW
8
1.1
WSW
9
1.4
WSW
10
1.9
WSW
12
1.7
WSW
11
2
WSW
12
1.8
WSW
12
1.5
WSW
11
1.1
WSW
11
1
WSW
10
0.9
WSW
10
1.1
W
9
1.2
WSW
9
1.4
WSW
14
2.2
WSW
12
4
WSW
12
4.5
W
14
5
W
13
5.5
W
13
5
W
13
Wave Graph
Metric surfscale
Energy kJ
325
204
186
351
983
744
1036
882
512
292
209
163
194
243
777
1435
4714
7971
8967
9617
9112
Wind (km/h)
30
SW
25
SW
10
SSE
20
SSE
20
S
20
SW
20
WSW
20
WSW
10
SSE
15
SW
10
WSW
10
W
15
W
20
W
25
S
25
SSW
35
SW
25
WSW
40
WSW
35
WSW
35
SW
cross-off
cross-off
off
off
off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross-off
off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
5:36PM3.03m
5:47AM2.91m
6:10PM3.11m
6:24AM2.90m
6:44PM3.16m
7:00AM2.87m
7:19PM3.17m
7:35AM2.81m
7:56PM3.15m
8:11AM2.71m
8:33PM3.10m
8:49AM2.60m
9:13PM3.03m
Low Tide
11:14AM0.50m
11:38PM0.61m
11:48AM0.48m
00:15AM0.55m
12:21PM0.48m
00:51AM0.52m
12:55PM0.49m
1:28AM0.54m
1:29PM0.53m
2:05AM0.61m
2:03PM0.59m
2:44AM0.71m
2:39PM0.67m
3:26AM0.81m
part cloud
part cloud
cloud
cloud
part cloud
part cloud
part cloud
clear
rain showers
cloud
cloud
part cloud
part cloud
part cloud
light rain
rain showers
light rain
light rain
rain showers
light rain
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:13
5:13
5:11
5:11
5:09
5:09
5:07
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:55
9:57
9:59
10:00
10:00
10:01
10:02
2
2
1
2
4
2
2
Temp °C
15
15
14
13
15
13
15
16
13
15
16
12
13
15
13
13
13
12
12
11
10
9
10
11
9
11
9
10
12
11
13
14
11
10
11
10
8
6
7
5
4
3
Swell 1
Height (m)
Direction
Period (s)
0.4
NW
9
1.1
WNW
8
1.1
WSW
9
1.4
WSW
10
1.9
WSW
12
1.7
WSW
11
0.4
N
10
1.8
WSW
12
1.5
WSW
11
1.1
WSW
11
1
WSW
10
0.9
WSW
10
1.1
W
9
0.3
N
8
1.4
WSW
14
0.2
N
9
Energy kJ
21
138
186
351
983
744
31
882
512
292
209
163
194
11
777
6
Swell 2
Height (m)
Direction
Period (s)
0.1
SW
18
0.5
WSW
11
0.8
WNW
8
0.5
W
13
0.2
WNW
8
0.4
NNW
10
0.5
N
10
0.5
N
10
0.5
N
10
0.5
N
9
0.1
SW
14
0.3
N
8
0.2
W
16
0.2
N
7
Energy kJ
13
65
74
89
6
33
52
49
47
44
8
12
21
4
Swell 3
Height (m)
Direction
Period (s)
0.2
WSW
17
0.2
WSW
16
0.4
NW
7
0.2
NNW
11
0.1
NW
7
0.1
SW
14
0.1
SW
14
0.1
W
19
0.1
W
18
0.1
W
18
0.2
N
7
Energy kJ
29
26
13
12
2
8
8
7
6
6
4
Wind waves
Height (m)
Direction
Period (s)
1.8
WSW
7
1.3
WSW
8
0.3
S
3
0.6
SE
3
0.5
SE
3
2
WSW
12
0.2
ESE
2
0.7
N
9
1.2
WSW
9
0.6
SSE
3
2.2
WSW
12
4
WSW
12
4.5
W
14
5
W
13
5.5
W
13
5
W
13
Energy kJ
325
204
1
7
6
1036
1
76
243
9
1435
4714
7971
8967
9617
9112
Nearest Offshore or Glassy
Rating
(10 max)
2
2
2
2
3
2
3
3
2
2
1
1
1
1
3
1
1
4
5
3
2
Distance (km)
244
9
0
0
0
9
9
232
0
9
0
0
128
179
0
42
207
456
179
535
288
Best forecast wave conditions in Mayo and Achill Island
Rating
(10 max)
2
2
2
3
2
3
2
2
1
1
3
Best forecast wave conditions in Ireland
Rating
(10 max)
2
2
2
3
3
2
4
3
2
2
1
1
1
2
3
2
1
5
2
Header Global
Rating
(10 max)
5
5
5
7
7
6
5
5
4
4
5
8
4
6
5
5
5
5
5
7
6
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Information about the Bunatrahir Bay Surf forecast

The above surf forecast table for Bunatrahir Bay provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Bunatrahir Bay can be found by selecting the local surf guide option on the grey menu. Our Bunatrahir Bay surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Bunatrahir Bay) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Bunatrahir Bay may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Are you planning a holiday in Mayo and Achill Island? If you are looking for accommodation near Bunatrahir Bay, camping, hotels and holiday cottages in Mayo and Achill Island, consider staying in Ballina which is 24 km (15 miles) away. Other places in and around Mayo and Achill Island where you can find information about places to rent, and car hire include Belmullet which is 41 km (25 miles) away, Westport, Sligo and Claremorris.

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