Carrownisky surf break

Carrownisky surfForecast / Mayo and Achill Island / Ireland

information circle12 Day Weather and Surf, issued 11 pm Sunday 04 Jan 2026 IST
Forecast update in hr  min  s Forecast update imminent
Carrownisky surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Carrownisky sea temperature is
9.5° C
(Which is slightly cooler than normal)


Best Forecast Surf Conditions for Carrownisky this week:

The surf forecast for Carrownisky over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Jan 08) at 9AM. The primary swell is predicted to be 0.9m and 11s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Carrownisky in the next 12 days are 1.7m 12s and forecast to arrive on Friday (Jan 09) at 3PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 4s period and expected on Thursday (Jan 08) at 9PM.

Wave TypeTime (IST) & Date Wave Height & Period
Next good surf (1 star+) 9AM (Thu 8th Jan)3ft (0.9m) 11s
Best Surf 9AM (Thu 8th Jan)3ft (0.9m) 11s
Most Powerful 3PM (Fri 9th Jan)5.5ft (1.7m) 12s

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

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Moderate rain (total 15mm), heaviest on Tue morning. Very mild (max 10°C on Wed afternoon, min 4°C on Sun night). Winds decreasing (strong winds from the SW on Mon night, light winds from the NW by Tue night).

Days 3-6 Weather Summary Heavy rain (total 39mm), heaviest during Thu afternoon. Mild temperatures (max 8°C on Wed night, min 3°C on Thu afternoon). Winds increasing (calm on Fri night, near gales from the SSE by Sat afternoon).

Monday
05
Tuesday
06
Wednesday
07
Thursday
08
Friday
09
Saturday
10
Sun
11
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
1
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
0.9
NNW
0.7
NNW
0.7
NNW
0.2
NNW
1
WSW
0.6
W
0.8
WNW
0.5
WNW
0.7
WNW
1.2
WNW
0.9
WNW
0.8
W
0.6
W
1.5
NW
1.7
NW
1
W
0.8
WNW
0.7
W
0.5
W
0.8
WSW
0.8
WSW
Period(s) (?)411101067991191112131212121111101013
Wave
Graph
(?)Metric surfscale
Energy kJ (?)1811790108040944311923718718411760376529516711448122218
Wind
(km/h)
35
N
25
N
25
N
25
W
25
W
25
WNW
25
NNW
15
SSE
35
NW
30
NW
10
SSE
30
ENE
50
NNW
45
NW
40
NW
25
NNE
25
SSE
45
SSE
35
SSW
35
W
35
SW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscrosscrossononcross-
on
crosscross-
off
cross-
on
cross-
on
cross-
off
cross-
off
crosscross-
on
cross-
on
cross-
off
cross-
off
cross-
off
crossoncross-
on
High Tide
/ height (m)
6:23AM
4.16
6:59PM
3.72
7:07AM
4.11
7:44PM
3.60
7:50AM
3.96
8:29PM
3.43
8:34AM
3.73
9:13PM
3.25
9:18AM
3.45
10:00PM
3.07
10:05AM
3.16
10:50PM
2.92
10:59AM
2.90
Low Tide
/ height (m)
12:04AM
0.36
12:39PM
-0.05
12:47AM
0.42
1:24PM
0.02
1:30AM
0.54
2:08PM
0.18
2:14AM
0.72
2:52PM
0.40
2:59AM
0.93
3:37PM
0.67
3:48AM
1.14
4:25PM
0.93
4:47AM
1.33
5:21PM
1.16
Monday
05
Tuesday
06
Wednesday
07
Thursday
08
Friday
09
Saturday
10
Sun
11
Sunrise-8:55--8:55--8:55--8:53--8:52--8:52--8:52-
Sunset--4:32--4:35--4:36--4:37--4:38--4:39--4:42
rain showers
part cloud
part cloud
light rain
rain showers
rain showers
cloud
light rain
light rain
cloud
light rain
heavy rain
mod rain
rain showers
rain showers
rain showers
cloud
mod rain
heavy rain
rain showers
light rain
Rain (mm)
1--251-51-3139321-82493
Temp. °C55689986108637888571199
Feels °C (?)-2-3-1123-122-13-5-4-2-2-1-2-4501
  • 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 Carrownisky Surf forecast

The above surf forecast table for Carrownisky provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Carrownisky can be found by selecting the local surf guide option on the grey menu. Our Carrownisky 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 (Carrownisky) 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 Carrownisky 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 Carrownisky, camping, hotels and holiday cottages in Mayo and Achill Island, consider staying in Westport which is 25 km (16 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 55 km (34 miles) away, Claremorris, Ballina and Galway.

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