Kilcummin Harbour Surf Break

Lat Long: 54.28° N 9.22° W

Kilcummin Harbour Surf Forecast and Surf Report

Issued: 12 am 25 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 25 Jul 2026:

  • Best quality surf: Monday 27 Jul, 10PM (local time) - 5.5ft (1.7m), 9s period, W swell with cross-offshore winds.
  • Most powerful swell: Saturday 25 Jul, 4PM (local time) - 10ft (3.0m), 11s period, WNW swell with 1,843 kJ wave energy.
  • Next surfable swell (1★+): Monday 27 Jul, 10PM (local time) - 5.5ft (1.7m), 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 Monday (Jul 27) at 10PM. The primary swell is predicted to be 1.7m and 9s period with a secondary swell of 0.9m and 10s. 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 11s and forecast to arrive on Saturday (Jul 25) at 4PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Wednesday (Jul 29) at 1AM.

Wave TypeTime (IST) & Date Wave Height & Period
Next good surf (1 star+)10PM (Mon 27th Jul)5.5ft (1.7m) 9s
Best Surf10PM (Mon 27th Jul)5.5ft (1.7m) 9s
Most Powerful 4PM (Sat 25th Jul)10ft (3.0m) 11s

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


The Lowdown

Right, I’ve had a look at the charts for here, and to be honest, it’s a bit of a mixed bag, if not a frustrating one. Kilcummin Harbour is a reef setup, and it’s exposed to the swell, but the timing and conditions are going to be a real test of patience. Let’s break it down.

We’re kicking off with a solid pulse of swell, but it’s coming with a lot of wind. Saturday the 25th of July, you’re looking at a 10-foot swell from the WNW, with a 10-second period. That’s a lot of water moving, and the combined energy is a hefty 1676, which is a proper strong event. But the wind is a cross-off from the WSW at 15 mph. It’s clean, but the forecast says “marginal surf forecast or questionable tide conditions.” It’s there, but it’s not a gimme. Sunday the 26th is worse, with the same size swell but a fresh cross-breeze at 18 mph, making for a lumpy, cross-chop. That’s a write-off.

The best bet in the near term is likely Monday the 27th. The swell drops to a still-juicy 7 feet from the WNW (10-second period), and the combined energy is a strong 1098. The wind is a clean cross-off from the SW at 12 mph. It’s still a “marginal” call, but that’s the cleanest it’s going to be for a while. Tuesday the 28th morning has a 5-foot swell from the W with a 9-second period, and importantly, it’s an offshore wind from the SSW at 12 mph. The energy is moderate at 476, and the forecast says “expect good surf conditions.” That’s about as close to a standout as we get in this first week, but the afternoon goes to hell with a fresh 18 mph cross-off.

After that, the surf drops off a cliff. From Wednesday the 29th through to the 2nd of August, it’s mostly under 3 feet and onshore, with periods of glassy conditions but no real swell. The water temperature here is about average for the time of year, nothing unusual.

There is a long-range glimmer, but it’s a promise, not a certainty. On Saturday the 8th of August, we see a new pulse of 5-foot swell from the N, with a 10-second period and a combined energy of 545. The wind is a light cross-on from the NW, so it’s not perfect, but it’s the best looking set of numbers in the second week. The morning of the 9th is small and clean, but that’s about it.

The crowd profile here is “sometimes” busy, so it’s not a secret spot, but with the forecast being so marginal, I doubt you’ll be fighting for a peak. This is a reef, so the longer period swells (like the 10-11 second stuff) will have more shape than the short-period junk. The 10-foot swells are for experienced surfers only; it’s over 8 feet, so keep the beginners on the beach. Honestly, with the wind and the conditions, if you’re a kite surfer, you might have more fun on the bigger, windier days than a paddle surfer will.

Rusty.

Short Range Forecast

Light rain (total 4mm), mostly falling on Sat afternoon. Very mild (max 17°C on Mon afternoon, min 13°C on Sun night). Mainly fresh winds.

Days 4-6 Weather Summary

Light rain (total 8mm), mostly falling on Wed morning. Warm (max 20°C on Tue afternoon, min 13°C on Wed morning). Wind will be generally light.

Saturday
25
Sunday
26
Monday
27
Tuesday
28
Wednesday
29
Thursday
30
Friday
31
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
3
2
1
1
0
3
3
2
3
2
0
1
0
0
1
1
0
0
1
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)
3
WNW
10
3
WNW
11
2.5
WNW
10
3
WNW
10
3
WNW
10
2.5
WNW
10
2.2
WNW
10
1.9
WNW
10
1.7
W
9
1.6
W
9
1.7
W
9
1.5
W
8
1.4
W
8
1.1
W
8
0.8
W
8
0.8
W
7
0.8
WNW
7
0.9
WNW
7
0.9
WNW
7
0.8
WNW
7
0.9
NW
7
Wave Graph
Metric surfscale
Energy kJ
1676
1843
1478
1748
1678
1196
878
667
463
393
421
305
258
146
72
70
71
76
76
62
65
Wind (km/h)
25
WSW
20
W
30
W
30
WNW
30
WNW
20
WSW
20
SW
20
SW
15
SSW
20
SSW
30
SW
15
SSW
15
NNW
10
WNW
10
SW
10
SW
10
NNW
10
W
5
N
15
NNE
15
N
Wind State
cross-off
cross
cross
cross
cross-on
cross-off
cross-off
cross-off
off
off
cross-off
cross-off
cross-on
cross-on
cross-off
cross-off
on
cross
glassy
on
on
High Tide
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
7:06AM2.91m
7:25PM3.44m
7:39AM2.96m
7:56PM3.50m
Low Tide
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
12:59PM0.37m
1:36AM0.39m
1:30PM0.32m
2:07AM0.34m
cloud
light rain
light rain
cloud
part cloud
part cloud
light rain
cloud
light rain
light rain
cloud
rain showers
light rain
cloud
clear
part cloud
part cloud
clear
part cloud
cloud
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:35
5:37
5:39
5:41
5:41
5:43
5:46
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:49
9:46
9:45
9:44
9:42
9:39
9:38
 mm
1
2
1
1
1
2
4
2
Temp °C
15
16
15
15
15
14
16
17
17
19
20
17
13
15
14
16
16
14
15
14
14
Feels °C
12
13
11
9
9
11
15
15
16
16
16
14
11
13
12
14
14
12
13
11
11
  • 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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