Kilcummin Harbour Surf Break

Lat Long: 54.28° N 9.22° W

Kilcummin Harbour Surf Forecast and Surf Report

Issued: 12 am 15 Jul 2026 (local time)

Forecast update in  hr  min

Today's Kilcummin Harbour sea temperature is
15.9° C
1.3° 

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 15 Jul 2026:

  • Most powerful swell: Sunday 19 Jul, 1AM (local time) - 4.5ft (1.3m), 6s period, N swell with 132 kJ wave energy.

Best Forecast Surf Conditions for Kilcummin Harbour this week:

The most powerful waves expected at Kilcummin Harbour in the next 16 days are 1.3m 6s and forecast to arrive on Sunday (Jul 19) at 1AM. Winds are predicted to be onshore at the time the swell arrives.

Wave TypeTime (IST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 1AM (Sun 19th Jul)4.5ft (1.3m) 6s

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


The Lowdown

Alright, let’s get into it. This is Rusty, your local surf reporter, and I’ve got the full 16-day run down for the next stretch here.

You want the honest truth? This is a tough stretch. There’s a long gap right at the start where there’s practically nothing worth paddling out for. We’re looking at a couple of weeks where the surf is just flat or messy, and it’s not until the very end that we finally get a pulse.

The first real swell on the cards isn’t until the final week. Honestly, you’re looking at about ten days of poor surf conditions where the energy is weak—those combined swell energy values barely hit triple digits until we get later in the run. The early mornings on Wednesday the 15th through to Friday the 24th are mostly small, weak, and messy.

Let’s be straight: the only break we have on the menu is Kilcummin Harbour, and it’s a reef setup, fairly consistent, exposed to the swell. But the news isn’t great. The water temp is about average for the time of year, nothing unusual there. For the first several days, the wave heights are only around 1 ft to 1 ft. That’s basically a lake. Even when it jumps a little on Friday the 17th afternoon, the period drops to 5 seconds—short, weak, and onshore. No bueno.

The week starting Monday the 21st is much the same. We get a slight bump in energy, but winds are on it and the swell is tiny. You’ll see some cross-offshore or glassy windows, but there’s simply no size to work with. The combined energy is in the low double digits to maybe 150 range—weak to moderate, but the wave height is never enough to ride.

Now, let’s talk about the light at the end of the tunnel. Saturday the 25th of July is the standout. The morning brings a clean window with offshore wind from the SW at 19 mph. That’s a major positive. Swell height jumps to 6 ft from the NNW with a 8-second period, and the combined energy is a solid 492 (moderate to strong). Afternoon cleans up again with a cross-off wind from the WSW at 22 mph, 5 ft from the NW and 351 energy. This is the best on offer, but it’s still a short-period swell (8 seconds), so at a reef like Kilcummin Harbour that can be a bit peaky and fast. The 6 ft is pushing into the size that’s better for intermediates and above; beginners should sit this one out. Expect crowds to be sometimes around.

Sunday the 26th fades quickly, with strong cross-winds and energy dropping.

Monday the 27th still has some moderate swell (3 ft, NNW) but the wind is on it and choppy. After that, it’s back to small, weak dribble for the rest of the run.

So, to sum it up: you’ve got a long dry spell until the very end. The only real day to get excited about is Saturday the 25th of July, with cleaner conditions and proper wave height. Everything else is a rest day or a session for the hardy. Keep an eye on the forecast for that late window, but for now, pull the wax off and give the board a rest.

This is Rusty, signing off.

Short Range Forecast

Mostly dry. Warm (max 23°C on Wed afternoon, min 13°C on Thu night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Very mild (max 14°C on Sat morning, min 12°C on Sat night). Wind will be generally light.

Wednesday
15
Thursday
16
Friday
17
Saturday
18
Sunday
19
Monday
20
Tuesday
21
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
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)
0.4
WSW
9
0.4
WSW
9
0.4
W
8
0.4
W
9
0.4
W
10
0.4
W
8
0.4
NW
10
0.5
NW
10
1.1
N
6
1
N
5
1.1
N
5
1.3
N
6
1
N
7
0.5
W
11
0.5
W
11
0.5
W
11
0.6
W
10
0.6
W
10
0.5
W
10
0.7
N
7
0.4
W
9
Wave Graph
Metric surfscale
Energy kJ
27
28
23
24
30
23
27
48
75
56
70
132
89
57
59
56
73
69
45
46
27
Wind (km/h)
10
ESE
15
NE
5
S
5
E
15
N
15
N
20
N
25
N
20
N
25
NNW
25
N
20
N
20
N
20
N
10
NW
20
NNW
20
N
15
NNW
15
NNE
20
N
15
NNE
Wind State
cross-off
cross-on
off
glassy
on
on
on
on
on
cross-on
on
on
on
on
cross-on
cross-on
on
on
on
on
on
High Tide
7:03AM3.23m
7:23PM3.84m
7:51AM3.22m
8:10PM3.90m
8:37AM3.14m
8:55PM3.83m
9:22AM3.02m
9:39PM3.65m
10:07AM2.88m
10:24PM3.39m
10:54AM2.73m
11:10PM3.07m
11:44AM2.59m
00:01AM2.76m
Low Tide
12:55PM0.12m
1:40AM-0.02m
1:40PM0.10m
2:27AM-0.00m
2:23PM0.15m
3:13AM0.11m
3:07PM0.29m
3:57AM0.29m
3:52PM0.48m
4:42AM0.50m
4:40PM0.72m
5:28AM0.73m
5:34PM0.95m
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
part cloud
part cloud
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:20
5:22
5:24
5:24
5:26
5:28
5:30
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
10:02
10:00
10:00
9:59
9:58
9:55
9:54
 mm
Temp °C
22
23
22
21
21
17
14
14
13
14
13
12
14
14
14
14
14
13
15
16
15
Feels °C
21
22
23
20
19
15
11
10
9
9
9
8
11
10
12
11
11
10
13
13
12
  • Map Icons:
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  • 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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