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Surf Forecasts:

Bunatrahir Bay surfForecast / Mayo and Achill Island / Ireland

information circle12 Day Weather and Surf, issued 11 pm Saturday 31 Jan 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
9.1° C
 (Which is slightly cooler than normal)

Best Forecast Surf Conditions for Bunatrahir Bay this week:

The surf forecast for Bunatrahir Bay over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Feb 01) at 6PM. The primary swell is predicted to be 5.0m and 17s period. The wind is predicted to be cross-shore as the swell arrives.

The most powerful waves expected at Bunatrahir Bay in the next 12 days are 5.0m 17s and forecast to arrive on Sunday (Feb 01) at 6PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 5s period and expected on Thursday (Feb 05) at 12AM.

Wave TypeTime (IST) & Date Wave Height & Period
Next good surf (1 star+) 6PM (Sun 1st Feb)16ft (5.0m) 17s
Best Surf 6PM (Sun 1st Feb)16ft (5.0m) 17s
Most Powerful 6PM (Sun 1st Feb)16ft (5.0m) 17s

Table - best surf conditions forecast for Bunatrahir Bay over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Light rain (total 4mm), mostly falling on Sat night. Mild temperatures (max 9°C on Sun afternoon, min 4°C on Sun night). Winds increasing (calm on Sun night, fresh winds from the E by Mon afternoon).

Days 3-6 Weather Summary Light rain (total 3mm), mostly falling on Thu night. Mild temperatures (max 9°C on Wed afternoon, min 5°C on Fri afternoon). Mainly fresh winds.

Sunday
01
Monday
02
Tuesday
03
Wednesday
04
Thursday
05
Friday
06
Sat
07
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
4
2
6
!
2
1
0
1
1
2
0
0
0
1
3
2
2
2
3
3
2
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
3
W
3
W
3
W
4
W
3
W
2.3
W
1.5
W
1.8
W
2.1
W
1.7
W
1.2
W
1
W
0.8
W
1.6
W
2.5
W
2.5
W
2.2
W
2
W
1.9
WSW
1.8
WSW
1.6
WSW
Period(s) (?)141318161514131615141313122018161514141313
Wave
Graph
(?)Metric surfscale
Energy kJ (?)3253275056168137376620957801667196311785063241771939438437512175171513031106799
Wind
(km/h)
15
SSW
20
W
15
WNW
10
SE
25
E
35
E
35
E
35
E
25
E
25
SE
25
SE
25
ESE
30
ESE
30
E
30
ESE
30
ESE
30
ESE
25
SE
20
ESE
15
ESE
10
E
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
offcrosscrosscross-
off		crosscrosscrosscrosscrosscross-
off		cross-
off		cross-
off		cross-
off		crosscross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross
High Tide
/ height (m)
5:05AM
3.51
5:32PM
3.11
5:49AM
3.73
6:15PM
3.17
6:31AM
3.83
6:54PM
3.17
7:09AM
3.82
7:32PM
3.12
7:46AM
3.69
8:08PM
3.02
8:22AM
3.46
8:43PM
2.89
8:57AM
3.17
Low Tide
/ height (m)
10:40PM
0.38
11:22AM
0.16
11:24PM
0.21
12:06PM
0.02
12:04AM
0.11
12:46PM
-0.02
12:42AM
0.09
1:24PM
0.03
1:19AM
0.16
2:00PM
0.16
1:56AM
0.31
2:34PM
0.35
2:32AM
0.51
3:08PM
0.58
Sunday
01
Monday
02
Tuesday
03
Wednesday
04
Thursday
05
Friday
06
Sat
07
Sunrise-8:26--8:23--8:22--8:21--8:18--8:17--8:15-
Sunset--5:15--5:17--5:20--5:22--5:23--5:25--5:28
light rain
rain showers
part cloud
clear
part cloud
part cloud
cloud
cloud
light rain
part cloud
part cloud
clear
part cloud
cloud
light rain
light rain
cloud
cloud
cloud
cloud
cloud
Rain (mm)
12------1-----12-----
Temp. °C889688765789778866555
Feels °C (?)225410-2-2-21231-122-1-1-112
  • 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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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Bunatrahir Bay surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.

View detailed surf forecast for Bunatrahir Bay at:
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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 12 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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