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Surf Forecasts:

Kilcummin Harbour surfForecast / Mayo and Achill Island / Ireland

information circle12 Day Weather and Surf, issued 6 pm Thursday 18 Sep 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
15.6° C
 (Which is 1.5°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 (Sep 19) at 7AM. The primary swell is predicted to be 1.7m and 11s period with a secondary swell of 0.1m and 18s. Another secondary swell of 1.6m and 10s is also forecast. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Kilcummin Harbour in the next 12 days are 6.5m 12s and forecast to arrive on Saturday (Sep 20) at 7PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Saturday (Sep 20) at 1AM.

Wave TypeTime (IST) & Date Wave Height & Period
Next good surf (1 star+) 7AM (Fri 19th Sep)5.5ft (1.7m) 11s
Best Surf 7AM (Fri 19th Sep)5.5ft (1.7m) 11s
Most Powerful 7PM (Sat 20th Sep)21ft (6.5m) 12s

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 Moderate rain (total 13mm), heaviest on Sat night. Very mild (max 17°C on Thu afternoon, min 10°C on Sat night). Winds increasing (light winds from the SSW on Fri night, gales from the N by Sat night).

Days 3-6 Weather Summary Mostly dry. Very mild (max 12°C on Sun afternoon, min 8°C on Tue morning). Winds decreasing (fresh winds from the NNE on Sun afternoon, light winds from the NE by Mon night).

Thu
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
2
2
4
2
4
0
0
0
0
0
1
2
0
1
2
3
2
2
2
1
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.3
WSW
1.9
NNW
1.6
N
1.6
W
2
W
2.1
NNW
5.5
NNW
6
N
4
N
3
N
2.2
N
1.6
N
1.3
N
1
N
0.9
WNW
1.2
W
1.3
W
1.2
W
1.2
W
1
W
1
W
Period(s) (?)1012111011121212101010101010121211111099
Wave
Graph
(?)Metric surfscale
Energy kJ (?)3421064606470901129087478918320214841009556338214256409411332302180175
Wind
(km/h)
20
SSE
30
SW
15
S
20
SW
15
SSW
25
NNW
35
NW
60
N
40
NNE
30
NNE
20
NNE
10
NE
10
NNE
5
E
10
SSE
10
ESE
10
SSE
15
SSE
15
S
15
SSE
15
SSE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		cross-
off		offcross-
off		offcross-
on		cross-
on		onononcross-
on		cross-
on		oncrossoffcross-
off		cross-
off		cross-
off		offcross-
off		cross-
off
High Tide
/ height (m)
4:31PM
3.14
5:05AM
2.80
5:16PM
3.36
5:44AM
2.98
5:53PM
3.52
6:17AM
3.12
6:26PM
3.59
6:48AM
3.22
6:57PM
3.58
7:17AM
3.27
7:27PM
3.50
7:45AM
3.26
7:56PM
3.35
8:13AM
3.20
Low Tide
/ height (m)
10:58PM
0.51
10:56AM
0.62
11:36PM
0.32
11:33AM
0.43
12:08AM
0.18
12:07PM
0.30
12:37AM
0.11
12:39PM
0.23
1:05AM
0.10
1:10PM
0.21
1:32AM
0.16
1:41PM
0.26
1:59AM
0.27
Thu
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Sunrise--7:15--7:16--7:18--7:20--7:22--7:24--7:26
Sunset7:46--7:44--7:42--7:38--7:37--7:34--7:31--
light rain
part cloud
cloud
part cloud
part cloud
light rain
rain showers
mod rain
light rain
part cloud
cloud
part cloud
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
Rain (mm)
2----2261------------
Temp. °C171714151212131212121212121111121211131312
Feels °C (?)1412101097823569898910710117
  • 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 (light winds from the S.(Wind varies from 130 to 230 degs) at Sligo Airport 40 km from Kilcummin Harbour). 1.4m 10s swell from the WNW with a 1.0m 12s groundswell from the NW and a 0.6m 8s swell, also from the NW. 3 swells combining to make bigger set waves.

    2 hours 24 minutes ago Kilcummin Harbour
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40 km away, 2 h 24 min ago

9 km/h
S
0.0
15.6
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 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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