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Bunatrahir Bay surfForecast / Mayo and Achill Island / Ireland

information circle12 Day Weather and Surf, issued 11 am Monday 08 Dec 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
10.8° C
(Which is 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 Monday (Dec 08) at 6PM. The primary swell is predicted to be 4.5m and 17s period. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Bunatrahir Bay in the next 12 days are 6.5m 14s and forecast to arrive on Tuesday (Dec 09) at 3PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 5s period and expected on Tuesday (Dec 09) at 12PM.

Wave TypeTime (IST) & Date Wave Height & Period
Next good surf (1 star+) 6PM (Mon 8th Dec)15ft (4.5m) 17s
Best Surf 6PM (Mon 8th Dec)15ft (4.5m) 17s
Most Powerful 3PM (Tue 9th Dec)21ft (6.5m) 14s

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

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Moderate rain (total 16mm), heaviest on Mon night. Very mild (max 15°C on Tue morning, min 9°C on Mon morning). Winds increasing (light winds from the SSE on Mon afternoon, gales from the SSW by Tue morning).

Days 3-6 Weather Summary Moderate rain (total 12mm), heaviest on Thu afternoon. Very mild (max 11°C on Thu afternoon, min 4°C on Thu night). Winds decreasing (strong winds from the SSE on Thu morning, light winds from the SE by Sat night).

Monday
08
Tuesday
09
Wednesday
10
Thursday
11
Friday
12
Saturday
13
Sunday
14
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
4
!
!
0
0
0
!
!
!
!
!
!
!
!
!
!
4
3
4
!
!
Swell
Height Map
Wave Height (m) & direction (?)
3
W
4.5
W
3.5
W
3
W
6.5
WSW
5
W
5
W
5.5
W
4.5
W
3.5
WSW
3.5
WSW
4.5
W
3.5
W
4.5
W
4.5
W
4
W
3
W
2
W
3
WSW
5.5
W
5.5
W
Period(s) (?)191716151413121213131416161716151312111414
Wave
Graph
(?)Metric surfscale
Energy kJ (?)534511892683145111712981757393847278093871418291106567121321116462063283113223341082311300
Wind
(km/h)
30
SSW
20
SSW
25
SE
45
SSE
55
SW
50
SW
45
WSW
35
SW
30
SSW
40
SSE
35
SSE
15
S
30
SE
30
SSE
20
SSE
20
SSW
15
S
15
SE
10
SSW
20
WNW
25
W
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
offcross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
offoffoffoffcross-
off
offoffoffoffcross-
off
offcrosscross
High Tide
/ height (m)
8:12PM
2.88
8:32AM
3.48
9:06PM
2.65
9:26AM
3.29
10:05PM
2.45
10:24AM
3.09
11:10PM
2.34
11:25AM
2.90
12:19AM
2.32
12:29PM
2.75
1:26AM
2.39
1:32PM
2.67
2:23AM
2.52
Low Tide
/ height (m)
1:59PM
0.22
1:56AM
0.44
2:55PM
0.41
2:46AM
0.64
3:56PM
0.61
3:41AM
0.86
5:02PM
0.76
4:47AM
1.04
6:09PM
0.85
6:03AM
1.15
7:11PM
0.87
7:18AM
1.15
8:04PM
0.84
Monday
08
Tuesday
09
Wednesday
10
Thursday
11
Friday
12
Saturday
13
Sunday
14
Sunrise8:42--8:45--8:45--8:47--8:48--8:48--8:49--
Sunset-4:14--4:14--4:13--4:13--4:13--4:13--4:13-
light rain
part cloud
heavy rain
light rain
clear
part cloud
rain showers
part cloud
part cloud
clear
light rain
rain showers
part cloud
rain showers
rain showers
rain showers
part cloud
cloud
rain showers
cloud
rain showers
Rain (mm)
1-122--1---32-241--2-3
Temp. °C11111415101010111110117788981011108
Feels °C (?)4697-20134133-111447864
  • 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

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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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