Kilcummin Harbour Surf Break

Lat Long: 54.28° N 9.22° W

Issued: 12 am 06 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 6 Jul 2026:

  • Best quality surf: Tuesday 7 Jul, 10PM (local time) - 5ft (1.5m), 9s period, W swell with cross-offshore winds.
  • Most powerful swell: Tuesday 7 Jul, 7AM (local time) - 6ft (1.8m), 8s period, W swell with 465 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 7 Jul, 10PM (local time) - 5ft (1.5m), 9s 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 Tuesday (Jul 07) at 10PM. The primary swell is predicted to be 1.5m and 9s period with a secondary swell of 0.2m and 8s. 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 1.8m 8s and forecast to arrive on Tuesday (Jul 07) at 7AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Sunday (Jul 12) at 7AM.

Wave TypeTime (IST) & Date Wave Height & Period
Next good surf (1 star+)10PM (Tue 7th Jul)5ft (1.5m) 9s
Best Surf10PM (Tue 7th Jul)5ft (1.5m) 9s
Most Powerful 7AM (Tue 7th Jul)6ft (1.8m) 8s

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


Updates in  hr  min  s Forecast update imminent

Alright, let's get into it. This is the outlook for the coming weeks from Kilcummin Harbour.

Overall, it's a bit of a mixed bag and a waiting game. The start of the period is a bit messy and not really delivering the goods. The real standout is shaping up to be Thursday morning, July 9th. We've got a clean, 4ft swell rolling in from the west with a period of 9 seconds, light offshore winds from the SSW, and the whole setup is looking glassy and clean. The wave energy is moderate (263), but the conditions are going to make it surfable and fun. Another good shout is Wednesday morning, July 8th. Same sort of deal – a 4ft west swell with a 9-second period, light offshore breeze, and clean conditions. It’s a touch smaller on Thursday but the wind is better.

Now, for the grizzly details. Monday, July 6th is a write-off. The swell is there at 6ft from the west, but the cross-off winds and marginal tide spots are making it a mess. Tuesday, July 7th is similar, with the afternoon turning into a choppy cross-shore mess. Wednesday afternoon, July 8th, it goes glassy but the wind switches to a light cross-shore, so the quality drops off.

From Friday, July 10th onwards, it's mostly poor. We see onshore winds (NNW) pick up and the swell drops significantly from Saturday and Sunday, with waves barely 2ft and the energy levels dropping to just 64 and 47. That small, weak swell combined with onshore and cross-onshore winds means no go. There’s a tiny glimmer of hope on Tuesday morning, July 14th, with glassy conditions and a small 3ft west swell, but the energy is low (138) and it’s just ordinary.

Then things get a bit wild but not in a good way. On Saturday, July 18th, we get a rapid increase in swell from the WNW, hitting 7ft by the afternoon with a short, weak 7-second period. But the winds are cranking – up to 25 mph onshore, making it a total mess. The combined energy climbs over 400 but with that wind, it’s not for paddle surfing. Honestly, with that strong cross-onshore wind and a beach-and-reef setup, it’s looking more like it’s for the kite surfers. It stays windy and choppy right through to the end of the period on Monday, July 20th, with the swell levels bumping up again but the winds just ruining it.

So, to sum it up: get your best sessions in on the 8th and 9th of July. After that, you're waiting a long time for something clean, and the forecast for late July isn't shaping up well at all. Conditions like this rarely stay completely dead for long, so keep an eye on it.

Rusty

Short Range Forecast

Mostly dry. Warm (max 21°C on Tue morning, min 14°C on Sun night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 21°C on Thu morning, min 12°C on Fri night). Winds increasing (calm on Thu afternoon, fresh winds from the N by Sat afternoon).

Monday
6
Tuesday
7
Wednesday
8
Thursday
9
Friday
10
Saturday
11
Sunday
12
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
1
1
0
2
2
1
2
2
2
1
1
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.7
W
8
1.7
W
8
1.8
W
8
1.7
W
9
1.6
W
9
1.4
W
9
1.3
W
9
1.3
W
9
1.3
W
9
1.3
W
9
1.2
W
9
1
W
9
0.9
WNW
11
1.3
W
10
1.1
W
10
1.1
WNW
10
1.4
N
6
1.2
NNE
6
0.7
N
6
0.5
WNW
7
0.4
WNW
7
Wave Graph
Metric surfscale
Energy kJ
381
390
439
435
408
313
288
282
262
262
220
150
198
339
231
230
143
115
33
31
16
Wind (km/h)
20
SW
25
WSW
20
SW
25
WSW
20
W
10
SSW
10
SSW
5
W
10
S
15
SSW
5
WSW
5
SE
5
NE
20
NNW
20
N
25
N
30
N
30
NNE
20
NNE
20
NNE
15
NE
Wind State
cross-off
cross-off
cross-off
cross-off
cross
cross-off
off
cross
off
off
glassy
glassy
cross-on
on
on
on
on
on
cross-on
on
cross-on
High Tide
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
3:49PM2.90m
4:14AM2.94m
4:50PM3.16m
Low Tide
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
9:24AM0.64m
9:59PM0.71m
10:25AM0.50m
11:02PM0.46m
cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
cloud
cloud
part cloud
part cloud
clear
clear
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:11
5:11
5:13
5:13
5:15
5:16
5:16
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
10:10
10:09
10:08
10:08
10:07
10:07
10:06
 mm
Temp °C
17
17
15
21
21
18
20
21
18
21
21
18
17
14
13
12
12
12
16
19
21
Feels °C
14
13
13
17
18
17
20
21
18
20
21
19
17
11
10
7
6
7
13
18
21
Swell 1
Height (m)
Direction
Period (s)
0.1
N
9
0.2
N
9
1.7
W
9
1.6
W
9
1.4
W
9
1.3
W
9
1.3
W
9
1.3
W
9
1.3
W
9
1.2
W
9
1
W
9
0.9
WNW
11
1.3
W
10
1.1
W
10
1.1
WNW
10
0.9
WNW
9
1.2
NNE
6
0.7
N
6
0.5
N
6
0.4
WNW
7
Energy kJ
2
7
435
408
313
288
282
262
262
220
150
198
339
231
230
143
115
31
15
16
Swell 2
Height (m)
Direction
Period (s)
0.2
N
8
0.2
N
8
0.2
N
8
0.2
N
8
0.2
N
7
0.2
N
7
0.1
N
7
0.1
N
7
0.2
W
13
0.8
W
8
0.2
N
9
0.7
WNW
11
0.1
N
9
0.6
WNW
8
0.5
WNW
8
0.5
WNW
7
0.3
NNE
5
Energy kJ
5
5
6
5
4
4
1
1
14
86
7
107
2
53
33
31
5
Swell 3
Height (m)
Direction
Period (s)
0.1
N
8
0.1
N
11
0.1
N
10
0.3
NW
7
Energy kJ
1
2
2
7
Wind waves
Height (m)
Direction
Period (s)
1.7
W
8
1.7
W
8
1.8
W
8
0.5
N
3
1.2
NNE
5
1.3
NNE
5
1.4
N
6
0.4
E
3
0.4
ESE
3
0.3
E
3
0.3
E
3
Energy kJ
381
390
439
4
69
102
141
3
3
1
2
Nearest Offshore or Glassy
Rating
(10 max)
2
2
2
2
2
2
2
2
2
2
2
1
2
2
2
1
1
1
1
1
1
Distance (km)
2
2
2
2
247
0
0
2
0
0
0
0
11
244
85
444
270
39
166
282
282
Best forecast wave conditions in Mayo and Achill Island
Rating
(10 max)
2
2
2
2
2
2
2
2
2
2
1
2
Best forecast wave conditions in Ireland
Rating
(10 max)
2
2
2
2
2
2
2
2
2
2
2
1
2
2
2
1
1
1
1
1
Header Global
Rating
(10 max)
7
8
7
5
5
9
6
9
9
5
6
5
4
5
5
4
5
4
4
5
5
  • 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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