Bunatrahir Bay Surf Break

Lat Long: 54.29° N 9.39° W

Bunatrahir Bay Surf Forecast and Surf Report

Issued: 6 pm 08 Aug 2026 (local time)

Forecast update in  hr  min

Today's Bunatrahir Bay sea temperature is
16.0° C
0.9° 

Bunatrahir Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Bunatrahir Bay surf forecast from 9 Aug 2026:

  • Best quality surf: Sunday 9 Aug, 4AM (local time) - 6ft (1.8m), 9s period, W swell with cross-offshore winds.
  • Most powerful swell: Sunday 9 Aug, 7AM (local time) - 6ft (1.9m), 9s period, W swell with 593 kJ wave energy.
  • Next surfable swell (1★+): Sunday 9 Aug, 4AM (local time) - 6ft (1.8m), 9s period with W 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 Sunday (Aug 09) at 4AM. The primary swell is predicted to be 1.8m and 9s period with a secondary swell of 0.2m and 10s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Bunatrahir Bay in the next 16 days are 1.9m 9s and forecast to arrive on Sunday (Aug 09) at 7AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Tuesday (Aug 11) at 7AM.

Wave TypeTime (IST) & Date Wave Height & Period
Next good surf (1 star+) 4AM (Sun 9th Aug)6ft (1.8m) 9s
Best Surf 4AM (Sun 9th Aug)6ft (1.8m) 9s
Most Powerful 7AM (Sun 9th Aug)6ft (1.9m) 9s

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


Short Range Forecast

Light rain (total 4mm), mostly falling on Sun morning. Warm (max 20°C on Tue morning, min 13°C on Sun morning). Wind will be generally light.

Days 5-7 Weather Summary

Light rain (total 9mm), mostly falling on Thu night. Warm (max 22°C on Tue afternoon, min 15°C on Fri morning). Wind will be generally light.

Sat
8
Sunday
9
Monday
10
Tuesday
11
Wednesday
12
Thursday
13
Friday
14
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
2
0
0
1
1
1
2
0
1
2
2
1
2
2
1
1
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2.1
W
9
1.8
WNW
9
1.9
WNW
9
1.7
WNW
9
1.4
WNW
8
1
NW
8
1.3
N
11
1.2
N
10
0.9
N
9
0.8
N
9
1.2
WSW
10
1.2
WSW
10
1.1
WSW
9
1.6
WSW
10
1.3
WSW
10
1.1
WSW
10
0.9
WSW
9
0.8
W
8
0.7
WSW
8
0.6
W
7
Wave Graph
Metric surfscale
Energy kJ
716
589
579
454
277
120
375
277
129
99
292
258
203
511
349
240
132
86
68
40
Wind (km/h)
25
SW
15
SSW
10
WNW
20
WNW
10
W
5
SSW
5
NE
10
SSE
20
SSE
15
S
15
SSE
15
S
15
SW
10
SSE
10
S
15
SW
5
S
15
NW
15
NNW
10
NW
Wind State
cross-off
cross-off
cross-on
cross
cross
glassy
cross-on
cross-off
cross-off
off
off
off
cross-off
off
off
cross-off
glassy
cross-on
cross-on
cross-on
High Tide
2:56AM2.59m
3:38PM2.83m
4:13AM2.73m
4:43PM3.14m
5:14AM2.92m
5:36PM3.46m
6:05AM3.09m
6:22PM3.72m
6:50AM3.20m
7:06PM3.88m
7:32AM3.24m
7:47PM3.90m
Low Tide
8:37PM0.98m
9:10AM0.85m
10:00PM0.74m
10:17AM0.66m
11:02PM0.45m
11:11AM0.43m
11:54PM0.18m
11:58AM0.24m
00:40AM-0.01m
12:40PM0.10m
1:23AM-0.10m
1:21PM0.05m
2:02AM-0.08m
cloud
light rain
light rain
part cloud
part cloud
cloud
part cloud
part cloud
cloud
cloud
cloud
cloud
part cloud
rain showers
part cloud
thunderstorm
mod rain
light rain
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:01
6:03
6:05
6:07
6:09
6:11
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:23
9:22
9:20
9:17
9:15
9:13
9:10
 mm
1
3
1
1
6
1
Temp °C
17
15
14
15
14
16
17
17
20
22
21
21
21
19
21
22
19
15
16
14
Feels °C
14
13
13
11
11
16
16
16
16
20
21
21
21
19
21
21
21
14
14
13
  • 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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