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Surf Forecasts:

Bunatrahir Bay surfForecast / Mayo and Achill Island / Ireland

information circle12 Day Weather and Surf, issued 5 am Tuesday 13 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
9.4° 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 Tuesday (Jan 13) at 9PM. The primary swell is predicted to be 2.5m and 11s period with a secondary swell of 1.9m and 12s. 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 5.0m 17s and forecast to arrive on Thursday (Jan 15) at 9AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.4m 12s period and expected on Wednesday (Jan 14) at 3PM.

Wave TypeTime (IST) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Tue 13th Jan)8ft (2.5m) 11s
Best Surf 6AM (Thu 15th Jan)15ft (4.5m) 18s
Most Powerful 9AM (Thu 15th Jan)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 Moderate rain (total 14mm), heaviest on Wed morning. Mild temperatures (max 8°C on Wed afternoon, min 4°C on Tue night). Mainly fresh winds.

Days 3-6 Weather Summary Mostly dry. Mild temperatures (max 7°C on Sat morning, min 3°C on Fri morning). Wind will be generally light.

Tuesday
13
Wednesday
14
Thursday
15
Friday
16
Saturday
17
Sunday
18
Monday
19
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
2
4
4
1
3
!
!
!
!
!
4
3
1
2
2
1
1
4
4
4
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
3
NNW
2.4
NNW
2.5
NW
1.7
NNW
1.2
NNW
2.3
W
5
W
5
W
4
W
4
W
4
W
3
W
2.2
W
1.8
W
1.5
W
1.2
W
1.1
W
0.9
W
2.4
WNW
3
WNW
3
WNW
Period(s) (?)12121010101117171615161412121110109161414
Wave
Graph
(?)Metric surfscale
Energy kJ (?)2204153814255872671323151321333488686941806433271439887517290234136290339192930
Wind
(km/h)
25
WNW
20
WNW
15
SSW
25
S
20
SSW
20
SW
15
S
15
SSE
20
SSE
20
SE
20
ESE
10
ESE
15
ENE
20
ENE
10
SE
5
SE
0
W
10
SSW
15
SSE
10
ESE
10
E
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		crosscross-
off		offcross-
off		cross-
off		offcross-
off		cross-
off		cross-
off		cross-
off		cross-
off		crosscrosscross-
off		glassglassoffcross-
off		cross-
off		cross-
off
High Tide
/ height (m)
1:40PM
2.35
2:31AM
2.45
2:50PM
2.39
3:28AM
2.61
3:45PM
2.49
4:14AM
2.79
4:30PM
2.62
4:54AM
2.99
5:08PM
2.75
5:30AM
3.17
5:44PM
2.85
6:04AM
3.33
6:18PM
2.91
Low Tide
/ height (m)
8:03PM
1.08
8:44AM
1.17
9:01PM
1.00
9:40AM
1.02
9:49PM
0.86
10:25AM
0.85
10:29PM
0.70
11:04AM
0.69
11:05PM
0.55
11:40AM
0.55
11:39PM
0.42
12:15PM
0.44
12:11AM
0.33
Tuesday
13
Wednesday
14
Thursday
15
Friday
16
Saturday
17
Sunday
18
Monday
19
Sunrise8:51--8:49--8:49--8:48--8:47--8:45--8:45--
Sunset-4:39--4:42--4:44--4:45--4:46--4:49--4:51-
part cloud
part cloud
cloud
light rain
rain showers
rain showers
part cloud
cloud
light rain
part cloud
part cloud
part cloud
clear
clear
clear
clear
cloud
part cloud
cloud
part cloud
part cloud
Rain (mm)
---452--3------------
Temp. °C775686665465775566676
Feels °C (?)010032210-111321342233
  • 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

Latest Updates

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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:
surf-forecast.com

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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