Kilcummin Harbour Surf Break

Lat Long: 54.28° N 9.22° W

Kilcummin Harbour Surf Forecast and Surf Report

Issued: 6 pm 02 Aug 2026 (local time)

Forecast update in  hr  min

Today's Kilcummin Harbour sea temperature is
16.4° C
1.4° 

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 2 Aug 2026:

  • Best quality surf: Saturday 8 Aug, 7AM (local time) - 6.5ft (2.0m), 8s period, W swell with cross-offshore winds.
  • Most powerful swell: Wednesday 5 Aug, 4PM (local time) - 15ft (4.5m), 10s period, WNW swell with 3,628 kJ wave energy.
  • Next surfable swell (1★+): Monday 3 Aug, 4AM (local time) - 2.5ft (0.8m), 9s period with N 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 (Aug 03) at 4AM. The primary swell is predicted to be 0.8m and 9s period with a secondary swell of 0.6m and 7s. 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 4.5m 10s and forecast to arrive on Wednesday (Aug 05) 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 0.5m 3s period and expected on Tuesday (Aug 04) at 4AM.

Wave TypeTime (IST) & Date Wave Height & Period
Next good surf (1 star+) 4AM (Mon 3rd Aug)2.5ft (0.8m) 9s
Best Surf 7AM (Sat 8th Aug)6.5ft (2.0m) 8s
Most Powerful 4PM (Wed 5th Aug)15ft (4.5m) 10s

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


The Lowdown

Alright, this is Rusty, and I’m looking at the surf outlook for our little corner of the world. We’ve only got one spot on the cards, so let’s dig into it.

The next week and a half is a bit of a mixed bag. We’re starting off with a frustrating wait. The first few days are a write-off, with poor conditions and small, weak swell. The energy is just not there, with combined energy readings barely hitting 252 (moderate) at best early on, and then dropping right off. It’s looking like we’ll be sitting on the beach for a few days.

The first real sign of life comes on Thursday, August 6th morning. It’s not huge, with a 4ft swell from the North, but it’s got a bit of period (8 seconds) and the wind is cross-offshore and light. The water is a touch warmer than normal at 62°, which is a nice bonus. It’s clean, but it’s just a taste.

Then, Friday, August 7th morning looks a bit better. The swell picks up to 5ft from the West, with a 9-second period. The wind is offshore from the SSW, so it’ll be clean. The combined energy is a solid 364 (moderate), so there’s some push. This is a solid choice for a morning session.

But the real standout in this entire forecast is Saturday, August 8th morning. The conditions are looking prime. We’re getting a 6ft swell from the WNW, with a period of 8 seconds. The wind is a whisper-light cross-offshore from the WSW, which is as good as it gets for clean lines. The combined energy is 512 (moderate), and it feels like it’ll have some punch. This is the best on offer in the whole window – a proper clean, fun-size wave for the confident intermediate.

After that, things get messy again. The wind swings onshore, and the swell drops off. There’s a long gap with nothing worth paddling out for. The next flicker of hope is way down the line on Saturday, August 15th morning. The swell is back up to 6ft from the West, with a light offshore wind from the SSW. The combined energy is 477 (moderate), and it’s clean. It’s a promising call, but we’re a week and a half out, so keep your fingers crossed. The swell stays solid through Sunday, but the wind gets a bit more cross-offshore, so it’s still surfable but not as perfect.

The very end of the run, on Monday, August 17th, sees a big 10ft swell from the WNW, but with a cross-onshore wind, it’s going to be a messy, choppy mess. That’s for experts only, if anyone.

For the core of the run, the Kilcummin Harbour reef is the only game in town. It’s fairly consistent, but it’s a reef, so watch your feet.

- Rusty

Short Range Forecast

Heavy rain (total 26mm), heaviest during Sun afternoon. Very mild (max 18°C on Mon afternoon, min 13°C on Sun afternoon). Winds increasing (calm on Tue morning, strong winds from the WNW by Wed morning).

Days 5-7 Weather Summary

Moderate rain (total 14mm), heaviest on Fri morning. Very mild (max 17°C on Thu afternoon, min 13°C on Wed afternoon). Winds decreasing (fresh winds from the WNW on Wed afternoon, light winds from the WSW by Sat morning).

Sun
2
Monday
3
Tuesday
4
Wednesday
5
Thursday
6
Friday
7
Saturday
8
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
0
0
0
0
1
0
0
0
0
1
2
0
2
2
1
2
3
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
NW
8
0.8
N
9
0.8
N
9
1
N
9
1
N
9
0.8
N
9
1
N
8
2.1
NW
7
3.5
NW
9
4.5
WNW
10
2.5
NNW
8
1.2
N
8
0.8
N
7
1.2
WNW
8
1.5
W
9
1.6
W
9
1.7
WNW
8
1.9
WNW
8
1.6
WNW
8
1.2
WNW
8
Wave Graph
Metric surfscale
Energy kJ
129
99
102
165
164
99
140
428
2176
3628
897
169
61
197
351
412
422
509
359
173
Wind (km/h)
10
E
15
ESE
15
E
15
ENE
15
SE
10
S
10
WNW
30
WNW
40
WNW
35
WNW
20
WNW
15
WSW
20
W
15
SSW
20
SSW
20
SW
10
WSW
5
WSW
10
NNW
10
NW
Wind State
cross
cross-off
cross
cross-on
cross-off
off
cross-on
cross-on
cross-on
cross
cross
cross-off
cross
cross-off
off
cross-off
cross-off
cross-off
cross-on
cross-on
High Tide
9:00PM3.43m
9:21AM2.91m
9:35PM3.31m
10:00AM2.84m
10:14PM3.15m
10:46AM2.74m
11:02PM2.95m
11:42AM2.63m
00:04AM2.74m
12:54PM2.57m
1:26AM2.61m
2:20PM2.64m
2:57AM2.62m
Low Tide
3:12AM0.36m
3:09PM0.48m
3:47AM0.44m
3:48PM0.62m
4:28AM0.56m
4:35PM0.79m
5:18AM0.72m
5:36PM0.95m
6:23AM0.88m
7:00PM1.06m
7:48AM0.94m
8:38PM0.99m
light rain
light rain
part cloud
cloud
mod rain
rain showers
thunderstorm
light rain
light rain
rain showers
part cloud
rain showers
rain showers
light rain
light rain
rain showers
light rain
part cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:50
5:52
5:54
5:56
5:58
6:00
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:35
9:32
9:30
9:29
9:27
9:24
9:22
 mm
4
4
6
1
5
3
3
1
1
1
1
5
4
1
Temp °C
14
14
16
18
15
18
18
15
13
14
14
16
17
14
14
15
14
15
15
14
Feels °C
12
13
13
16
12
19
18
12
5
7
8
13
13
12
11
12
12
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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