Kilcummin Harbour Surf Break

Lat Long: 54.28° N 9.22° W

Kilcummin Harbour Surf Forecast and Surf Report

Issued: 6 am 23 Jul 2026 (local time)

Forecast update in  hr  min

Today's Kilcummin Harbour sea temperature is
16.3° C
1.5° 

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 23 Jul 2026:

  • Best quality surf: Tuesday 28 Jul, 1AM (local time) - 6ft (1.8m), 9s period, WNW swell with offshore winds.
  • Most powerful swell: Sunday 26 Jul, 10AM (local time) - 10ft (3.0m), 10s period, WNW swell with 1,902 kJ wave energy.
  • Next surfable swell (1★+): Friday 24 Jul, 1AM (local time) - 2.5ft (0.7m), 11s period with NW 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 Friday (Jul 24) at 1AM. The primary swell is predicted to be 0.7m and 11s period with a secondary swell of 0.8m and 6s. 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 3.0m 10s and forecast to arrive on Sunday (Jul 26) at 10AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Tuesday (Jul 28) at 7AM.

Wave TypeTime (IST) & Date Wave Height & Period
Next good surf (1 star+) 1AM (Fri 24th Jul)2.5ft (0.7m) 11s
Best Surf 1AM (Tue 28th Jul)6ft (1.8m) 9s
Most Powerful10AM (Sun 26th Jul)10ft (3.0m) 10s

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


The Lowdown

Alright folks, Rusty here. Let’s have a look at what’s cookin’ for Kilcummin Harbour over the next couple of weeks.

First off, we’ve got a bit of a quiet start. Thursday the 23rd is pretty much a write-off – tiny, weak swell coming in at only 2ft from the NNW with a short period of 6 seconds, and the wind is cross-on, so it’s just messy and unappealing. The combined energy is a weak 56, so you’re not missing anything.

The first real glimmer of hope shows up on Friday morning, the 24th. The swell bumps up to 5ft from the WNW, with a period of 9 seconds, and the wind swings cross-offshore, leaving the surf clean. The combined energy jumps to a moderate 360. It’s still a bit marginal, but for a reef break like this, that cleaner look is what you want. Later that day the wind gets messy again, so the morning session is the window.

Now, Saturday the 25th brings a serious pulse of energy. We’re looking at 10ft of swell from the WNW, with a 10-second period, and the combined energy is a strong 1435 in the morning, building to 1732 in the afternoon. That’s proper. But – and this is a big but – the wind is cross-shore and the surf is lumpy with a cross-chop. The size is well over 8ft, so this is expert-only territory, and the conditions are messy. It’s not the clean, lined-up gem we’d hope for at that size. This continues through Sunday, with the wind turning cross-on and making it choppy, so it’s more of a battle than a pleasure.

Monday the 27th is a nice reset. The swell drops to a more manageable 6ft in the morning, still from the WNW, with a 10-second period, and the wind is cross-off, giving us clean faces. The combined energy is a solid 890. This is the real standout of the first week. The break is fairly consistent, and with that clean cross-off wind, the reef should be offering up some good, shaped waves. Tuesday the 28th and Wednesday the 29th keep the clean, cross-off wind, but the swell is a bit smaller, around 5ft to 5ft, with energy in the moderate range (457 to 502). It’s still surfable, just not as good as Monday.

Then we get a nice little window on Thursday the 30th. The swell holds at 5ft from the WNW, period 9 seconds, and the wind is a light cross-off, even going glassy-light in the afternoon with a slight air. The combined energy is a moderate 321, and the conditions are expected to be good. This is another top pick – clean, clean, clean.

Friday the 31st sees offshore wind in the morning, which is a treat, but the swell is dropping to 4ft with a shorter 7-second period, so the energy is down to 177. It’s surfable, but just ordinary.

After that, things start to fade. From Saturday the 1st of August onwards, the swell drops below 3ft, the wind gets strong and messy, or the direction goes off. There’s a gap of several days with no solid recommendations. You might see a tiny 2ft wave on Wednesday the 5th with a clean offshore wind, but the energy is weak at 98, so it’s a longboard or a rest day. The second week overall is pretty flat and uninspiring.

Best Bet: Your standout sessions are Monday morning, the 27th of July, when you’ve got 6ft of clean, cross-off swell, and Thursday the 30th of July, for the glassy, clean 5ft waves. The earlier swell on the 25th is big, but the wind spoils it for a paddle surfer – might be more of a kite day.

Rusty.

Short Range Forecast

Light rain (total 2mm), mostly falling on Fri night. Very mild (max 18°C on Fri afternoon, min 13°C on Thu night). Winds increasing (light winds from the NNW on Thu morning, fresh winds from the WSW by Fri night).

Days 4-6 Weather Summary

Light rain (total 3mm), mostly falling on Mon afternoon. Very mild (max 19°C on Tue morning, min 13°C on Sun night). Winds decreasing (fresh winds from the WNW on Sun afternoon, light winds from the SSE by Mon night).

Thursday
23
Friday
24
Saturday
25
Sunday
26
Monday
27
Tuesday
28
Wednesday
29
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
1
1
0
0
1
2
1
0
0
2
3
2
3
2
2
2
2
1
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.7
NNW
6
0.7
NNW
6
0.7
NW
11
1.6
WNW
9
1.7
WNW
8
1.9
WNW
8
3
WNW
9
3
WNW
10
3
WNW
10
3
WNW
10
3
WNW
10
2.5
WNW
10
2
WNW
10
1.9
WNW
9
1.8
WNW
9
1.5
W
9
1.5
W
9
1.5
W
9
1.4
W
8
1.3
W
8
1.2
W
8
Wave Graph
Metric surfscale
Energy kJ
34
33
117
396
361
449
1464
1699
1538
1902
1624
1163
717
612
516
355
363
343
266
217
164
Wind (km/h)
10
NNW
15
NW
15
WSW
25
WSW
25
W
35
WSW
25
W
15
W
25
W
35
WNW
35
WNW
20
W
20
SW
25
SSW
15
SSW
20
S
25
SSW
15
S
20
S
20
SSW
20
SSE
Wind State
cross-on
cross-on
cross-off
cross-off
cross
cross-off
cross
cross
cross
cross-on
cross-on
cross
cross-off
cross-off
off
off
off
off
off
cross-off
off
High Tide
1:49PM2.44m
2:15AM2.38m
3:03PM2.48m
3:30AM2.37m
4:07PM2.60m
4:31AM2.46m
4:59PM2.78m
5:18AM2.59m
5:41PM2.97m
5:57AM2.72m
6:18PM3.16m
6:33AM2.83m
6:52PM3.32m
Low Tide
8:03PM1.23m
8:34AM1.13m
9:22PM1.18m
9:39AM1.07m
10:24PM1.06m
10:32AM0.94m
11:12PM0.90m
11:15AM0.78m
11:52PM0.74m
11:53AM0.62m
00:29AM0.59m
12:27PM0.47m
1:03AM0.48m
part cloud
part cloud
part cloud
clear
part cloud
light rain
light rain
cloud
cloud
cloud
clear
part cloud
cloud
light rain
light rain
light rain
cloud
part cloud
cloud
cloud
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:33
5:33
5:35
5:37
5:39
5:41
5:41
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:52
9:50
9:49
9:46
9:45
9:44
9:42
 mm
1
1
1
1
1
3
Temp °C
14
14
13
17
18
15
15
15
15
15
15
14
16
15
16
19
19
17
20
20
18
Feels °C
13
12
11
12
13
11
12
13
12
9
9
9
12
12
15
16
16
16
17
18
17
  • 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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