Bunatrahir Bay surfForecast / Mayo and Achill Island / Ireland

information circle12 Day Weather and Surf, issued 12 am Tuesday 02 Sep 2025 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
16.4° C
(Which is 1.5°C warmer than normal for this time of year)


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 Tuesday (Sep 02) at 7AM. The primary swell is predicted to be 2.2m and 9s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Bunatrahir Bay in the next 12 days are 4.0m 13s and forecast to arrive on Monday (Sep 08) at 10PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 5s period and expected on Saturday (Sep 06) at 1PM.

Wave TypeTime (IST) & Date Wave Height & Period
Next good surf (1 star+) 7AM (Tue 2nd Sep)7ft (2.2m) 9s
Best Surf10PM (Mon 8th Sep)13ft (4.0m) 13s
Most Powerful10PM (Mon 8th Sep)13ft (4.0m) 13s

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

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Heavy rain (total 35mm), heaviest during Wed morning. Very mild (max 16°C on Tue morning, min 11°C on Wed night). Wind will be generally light.

Days 3-6 Weather Summary Light rain (total 6mm), mostly falling on Fri night. Very mild (max 16°C on Fri morning, min 11°C on Sat night). Winds decreasing (strong winds from the SE on Fri night, light winds from the W by Sat night).

Tuesday
02
Wednesday
03
Thursday
04
Friday
05
Saturday
06
Sunday
07
Mon
08
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
4
1
1
1
1
0
2
0
0
2
2
2
0
0
0
2
3
2
3
1
1
Swell
Height Map
Wave Height (m) & direction (?)
3
WNW
1.9
WNW
1.6
WNW
1.3
WNW
1.5
W
1.5
W
1.3
W
0.8
W
2
W
1.8
W
1.8
W
1.8
W
1.6
W
1.6
W
1.3
WSW
2.4
WNW
2
WNW
2
WNW
2.1
W
2.1
W
2.5
WSW
Period(s) (?)109881211111010109991010101211131110
Wave
Graph
(?)Metric surfscale
Energy (?)143357236723572861439828085061052853252750443010881082911149010671388
Wind
(km/h)
15
SW
15
SSW
20
SW
10
ESE
15
NNE
20
WNW
10
WSW
20
W
25
WNW
10
WSW
15
S
20
S
35
SSE
40
SSE
20
WNW
10
W
15
SSW
20
SSW
20
SE
35
ESE
30
E
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
cross-
off
cross-
off
cross-
off
cross-
on
cross-
on
cross-
off
crosscross-
on
cross-
off
offoffcross-
off
cross-
off
cross-
on
crossoffcross-
off
cross-
off
cross-
off
cross
High Tide
/ height (m)
1:20AM
2.09
2:25PM
2.29
3:03AM
2.16
3:43PM
2.51
4:08AM
2.37
4:32PM
2.80
4:54AM
2.61
5:11PM
3.12
5:33AM
2.85
5:46PM
3.42
6:09AM
3.08
6:21PM
3.66
6:46AM
3.25
6:57PM
3.82
Low Tide
/ height (m)
7:43AM
1.35
9:04PM
1.33
9:15AM
1.20
10:09PM
1.10
10:10AM
0.96
10:52PM
0.81
10:50AM
0.71
11:28PM
0.50
11:26AM
0.46
12:03AM
0.21
12:02PM
0.25
12:37AM
-0.02
12:37PM
0.10
Tuesday
02
Wednesday
03
Thursday
04
Friday
05
Saturday
06
Sunday
07
Mon
08
Sunrise-6:45--6:47--6:48--6:50--6:52--6:54--6:56-
Sunset--8:27--8:24--8:22--8:20--8:16--8:15--8:12
part cloud
part cloud
cloud
heavy rain
heavy rain
rain showers
part cloud
part cloud
clear
part cloud
cloud
cloud
light rain
light rain
cloud
cloud
cloud
clear
part cloud
light rain
mod rain
Rain (mm)
---13202------33-----28
Temp. °C131616141314131616121616141614121516121414
Feels °C (?)10121213111110121110121210141091112988
  • 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

Eyeball surf reportRecent Eyeball Surf Reports for Mayo and Achill Island

  1. weather stationWind Update Continuing clean conditions at Bunatrahir Bay (calm at Ballina 28 km from Bunatrahir Bay). A 2.2m swell from the WNW

    Bunatrahir Bay
Expand
<
>
View all

28 km away, 53 min ago

3 km/h
S
0.0
16.4
Air / Water (°C)
Please reload the page to see if there are any updates.

FREE! Surf-Forecast.com widget for your website

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.


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.

Nearest
Nearest
Nearest