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Surf Forecasts:

Kilcummin Harbour surfForecast / Mayo and Achill Island / Ireland

information circle12 Day Weather and Surf, issued 6 pm Tuesday 19 Aug 2025 IST
Forecast update in hr  min  s Forecast update imminent
Kilcummin Harbour surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Kilcummin Harbour sea temperature is
17.1° C
 (Which is 2.0°C warmer than normal for this time of year)

Best Forecast Surf Conditions for Kilcummin Harbour this week:

The surf forecast for Kilcummin Harbour over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Aug 22) at 4AM. The primary swell is predicted to be 1.0m and 12s period with a secondary swell of 0.5m and 8s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Kilcummin Harbour in the next 12 days are 4.5m 19s and forecast to arrive on Tuesday (Aug 26) at 4AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 9s period and expected on Monday (Aug 25) at 10PM.

Wave TypeTime (IST) & Date Wave Height & Period
Next good surf (1 star+) 4AM (Fri 22nd Aug)3.5ft (1.0m) 12s
Best Surf 4AM (Tue 26th Aug)15ft (4.5m) 19s
Most Powerful 4AM (Tue 26th Aug)15ft (4.5m) 19s

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

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

Short Range Forecast Mostly dry. Very mild (max 19°C on Tue afternoon, min 14°C on Thu night). Wind will be generally light.

Days 3-6 Weather Summary Light rain (total 9mm), mostly falling on Mon morning. Warm (max 22°C on Sun afternoon, min 14°C on Sat night). Winds increasing (calm on Fri night, strong winds from the SSE by Mon morning).

Tue
19
Wednesday
20
Thursday
21
Friday
22
Saturday
23
Sunday
24
Monday
25
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
0
0
0
0
0
0
0
1
1
0
1
1
1
1
0
1
1
0
1
8
!
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.4
N
0.6
N
0.5
N
0.5
N
0.6
N
0.6
N
0.5
W
0.9
W
1
W
0.9
WSW
0.7
W
0.6
W
0.4
NNE
0.5
N
0.6
W
0.8
W
1
W
0.8
W
0.6
WNW
3.5
W
4.5
W
Period(s) (?)6777691412111099101081099241918
Wave
Graph
(?)Metric surfscale
Energy (?)25392925427113126827019710875901041221922781905831011613319
Wind
(km/h)
15
NE
10
SSE
10
ESE
10
NE
5
N
0
NNW
15
N
5
NNW
5
N
10
NNE
5
NE
5
SSE
10
SE
5
SSE
15
SSE
20
SSE
25
SE
50
SSE
40
S
15
W
20
WNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		cross-
off		cross-
off		cross-
on		glassglassoncross-
on		ononglasscross-
off		cross-
off		offcross-
off		offcross-
off		offoffcrosscross
High Tide
/ height (m)
4:17AM
2.64
4:42PM
3.08
5:14AM
2.81
5:32PM
3.35
6:00AM
2.97
6:15PM
3.55
6:39AM
3.08
6:52PM
3.68
7:14AM
3.15
7:27PM
3.71
7:47AM
3.16
8:00PM
3.64
8:19AM
3.13
Low Tide
/ height (m)
10:05PM
0.80
10:17AM
0.80
11:04PM
0.56
11:08AM
0.59
11:51PM
0.35
11:50AM
0.40
12:31AM
0.20
12:28PM
0.26
1:06AM
0.12
1:03PM
0.19
1:39AM
0.11
1:36PM
0.20
2:09AM
0.17
Tue
19
Wednesday
20
Thursday
21
Friday
22
Saturday
23
Sunday
24
Monday
25
Sunrise--6:20--6:22--6:24--6:26--6:28--6:30--6:31
Sunset9:00--8:57--8:54--8:52--8:50--8:47--8:45--
part cloud
part cloud
clear
part cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
cloud
light rain
mod rain
light rain
heavy rain
rain showers
Rain (mm)
----------------181243
Temp. °C191818191617161516161519211819221917201515
Feels °C (?)171717171517151515151418201816211712151212
  • 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 Kilcummin Harbour (calm at Ballina 18 km from Kilcummin Harbour). 0.5m 6s windswell from the N with a 0.4m 3s local chop from the NNE and a 0.2m 8s swell from the WNW. 3 swells combining to make bigger set waves.

    1 hour 9 minutes ago Kilcummin Harbour
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18 km away, 1 h 9 min ago

3 km/h
ENE
0.0
17.1
Air / Water (°C)
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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 Kilcummin Harbour 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 Kilcummin Harbour at:
surf-forecast.com

Information about the Kilcummin Harbour Surf forecast

The above surf forecast table for Kilcummin Harbour provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Kilcummin Harbour can be found by selecting the local surf guide option on the grey menu. Our Kilcummin Harbour 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 (Kilcummin Harbour) 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 Kilcummin Harbour 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.

Kilcummin Harbour is 19 km (12 miles) from Ballina. If you plan a holiday in Mayo and Achill Island, look for hotels and other accommodation in Ballina. Ballina has rooms for a wide range of budgets as well as car hire and transport links.

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