Kilcummin Harbour Surf Break

Lat Long: 54.28° N 9.22° W

Issued: 6 am 04 Jul 2026 (local time)

Forecast update in  hr  min

Today's Kilcummin Harbour sea temperature is
15.0° C

Slightly warmer than usual

Kilcummin Harbour surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Kilcummin Harbour surf forecast from 4 Jul 2026:

  • Best quality surf: Friday 10 Jul, 10AM (local time) - 5ft (1.5m), 11s period, W swell with cross-offshore winds.
  • Most powerful swell: Saturday 4 Jul, 4PM (local time) - 8ft (2.4m), 9s period, W swell with 901 kJ wave energy.
  • Next surfable swell (1★+): Monday 6 Jul, 1AM (local time) - 5.5ft (1.7m), 8s period with W swell.

Best Forecast Surf Conditions for Kilcummin Harbour this week:

The surf forecast for Kilcummin Harbour over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Jul 06) at 1AM. The primary swell is predicted to be 1.7m and 8s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Kilcummin Harbour in the next 16 days are 2.4m 9s and forecast to arrive on Saturday (Jul 04) at 4PM. Winds are predicted to be cross-offshore at the time the swell arrives.

Wave TypeTime (IST) & Date Wave Height & Period
Next good surf (1 star+) 1AM (Mon 6th Jul)5.5ft (1.7m) 8s
Best Surf10AM (Fri 10th Jul)5ft (1.5m) 11s
Most Powerful 4PM (Sat 4th Jul)8ft (2.4m) 9s

Table - best surf conditions forecast for Kilcummin Harbour over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Alright folks, Rusty here. Let’s have a look at what’s on the cards for Kilcummin Harbour.

Right off the bat, the next week and a half is going to be a tough slog. The water temp is sitting at 59° which is about average for this time of year, so that’s not the issue. The problem is the wind and the quality of the swell. We’ve got a run of poor to marginal conditions from Saturday the 4th all the way through to about Thursday the 16th of July. That’s a long gap with nothing worth paddling out for. The wind is mostly cross-off or cross-on, with a few stronger breezes, and the swell is just not arranging itself well for this spot.

The only real bright spot in the whole 16-day window is Wednesday the 8th of July. That morning we’ve got a light offshore breeze from the south at just 6 mph, clean conditions, with a 4ft swell out of the west at 9 seconds. It’s not big, but the combined wave energy is moderate at 294, and it’s clean. Then into the afternoon it goes glassy – light breeze from the WNW at 3 mph, and the swell cleans up even more with a period stretching to 10 seconds and energy at 325. That’s the pick of the week for sure. A really nice, clean little session if you’ve got a grovel board.

Thursday the 9th holds similar, with clean, light wind conditions, but the swell is a touch smaller at 4ft.

Then look at Friday the 10th of July. The morning gets interesting. We’ve got light rain, a slight air from the ESE, and a 5ft west swell with a long period of 11 seconds. The energy jumps up to 549, which is decent. That’s a proper groundswell, and it’s clean. Now, at a reef break like Kilcummin Harbour, that longer period west swell should line up nicely, giving you some proper shape and longer waits between sets. This is the standout of the entire forecast. Conditions look very good for the morning session. The afternoon turns a bit cross-on with a northeast breeze, so get in early.

After that, it’s back to disappointment. From Saturday the 11th through to Saturday the 18th, it’s a wasteland of small, weak swell and poor wind. We’re looking at swell heights dropping to 1ft to 2ft and combined energy falling to double digits – weak stuff. Not worth the effort.

There’s a tiny flicker on Sunday the 19th of July with a 3ft west-northwest swell and a light offshore wind from the south-southwest in the morning, but at 143 energy it’s weak, and the description says “surfable waves but very ordinary conditions”. The afternoon gets a bit more size but drops in quality.

So to sum it up: this forecast is a long dry spell bookended by the 8th to the 10th of July. Wednesday morning the 8th is your best bet for clean, user-friendly waves. Friday morning the 10th is the real standout – bigger, longer-period, and clean. Don’t bother with anything else for the next two weeks unless the forecast changes.

Stay stoked, and keep an eye on the sky.

Rusty

Short Range Forecast

Mostly dry. Very mild (max 19°C on Mon morning, min 14°C on Sat night). Mainly fresh winds.

Days 4-6 Weather Summary

Mostly dry. Warm (max 26°C on Thu afternoon, min 15°C on Tue night). Wind will be generally light.

Saturday
4
Sunday
5
Monday
6
Tuesday
7
Wednesday
8
Thursday
9
Friday
10
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
1
2
0
0
2
1
0
1
1
0
2
2
2
2
2
2
1
3
1
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2.3
W
9
2.4
W
9
2.1
W
9
1.8
W
9
1.8
W
9
1.7
W
8
1.6
W
8
1.6
W
8
1.7
W
8
1.7
W
9
1.5
W
9
1.4
W
9
1.3
W
9
1.3
W
10
1.2
W
9
1.3
W
9
1.2
W
9
0.9
W
9
1.5
W
11
1.5
W
11
1.7
WNW
10
Wave Graph
Metric surfscale
Energy kJ
823
901
691
481
471
372
331
329
405
476
364
311
281
313
241
293
230
125
545
525
598
Wind (km/h)
30
WSW
35
WSW
20
WSW
25
WSW
30
WSW
15
SW
20
SW
25
WSW
15
SW
20
WSW
20
W
5
S
10
S
5
WNW
0
ESE
10
SE
10
ESE
5
SE
5
ESE
15
NE
5
NNE
Wind State
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
off
off
glassy
glassy
cross-off
cross-off
cross-off
cross-off
cross-on
glassy
High Tide
9:31PM3.23m
9:50AM2.65m
10:08PM3.15m
10:34AM2.59m
10:49PM3.06m
11:25AM2.55m
11:38PM2.95m
12:24PM2.53m
00:37AM2.85m
1:31PM2.57m
1:48AM2.81m
2:42PM2.70m
3:03AM2.84m
Low Tide
2:58PM0.57m
3:45AM0.64m
3:35PM0.67m
4:25AM0.67m
4:17PM0.79m
5:10AM0.71m
5:07PM0.92m
6:03AM0.74m
6:10PM1.01m
7:07AM0.76m
7:26PM1.03m
8:16AM0.73m
8:46PM0.92m
part cloud
cloud
cloud
cloud
part cloud
part cloud
cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
light rain
cloud
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:09
5:09
5:11
5:11
5:13
5:13
5:15
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
10:12
10:10
10:10
10:09
10:08
10:08
10:07
 mm
2
1
Temp °C
17
17
15
18
18
15
19
19
16
21
22
19
22
23
19
24
26
22
21
21
20
Feels °C
12
12
12
14
14
12
15
15
14
18
19
20
21
23
19
25
26
24
21
20
20
Swell 1
Height (m)
Direction
Period (s)
1.6
W
8
0.1
N
11
0.2
N
10
1.7
W
9
1.5
W
9
1.4
W
9
1.3
W
9
1.3
W
10
1.2
W
9
1.3
W
9
1.2
W
9
0.9
W
9
1.5
W
11
1.5
W
11
1.7
WNW
10
Energy kJ
331
2
8
476
364
311
281
313
241
293
230
125
545
525
598
Swell 2
Height (m)
Direction
Period (s)
0.2
N
8
0.2
N
8
0.2
N
9
0.3
N
9
0.3
N
8
0.2
N
7
0.2
N
7
0.2
N
7
0.3
WNW
13
0.1
NE
7
0.1
N
9
0.2
N
8
Energy kJ
6
5
6
13
12
4
4
4
34
2
2
5
Swell 3
Height (m)
Direction
Period (s)
0.1
N
7
0.1
N
10
0.1
N
7
Energy kJ
1
2
1
Wind waves
Height (m)
Direction
Period (s)
2.3
W
9
2.4
W
9
2.1
W
9
1.8
W
9
1.8
W
9
1.7
W
8
1.6
W
8
1.7
W
8
0.2
NNE
3
Energy kJ
823
901
691
481
471
372
329
405
1
Nearest Offshore or Glassy
Rating
(10 max)
1
2
3
2
2
2
2
2
2
1
2
2
2
2
2
2
2
1
3
2
3
Distance (km)
233
247
2
2
233
0
2
2
2
31
245
0
0
0
0
0
0
0
0
11
0
Best forecast wave conditions in Mayo and Achill Island
Rating
(10 max)
3
2
2
2
2
2
2
2
2
2
2
2
2
3
3
3
Best forecast wave conditions in Ireland
Rating
(10 max)
1
2
3
2
2
2
2
2
2
1
2
2
2
2
2
2
2
1
3
2
3
Header Global
Rating
(10 max)
5
5
5
9
6
5
6
8
7
5
5
9
8
9
9
5
7
5
4
8
4
  • 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 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 16 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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