Kilcummin Harbour surfForecast / Mayo and Achill Island / Ireland

information circle16 Day Weather and Surf, issued 6 pm Wednesday 27 May 2026 IST
Forecast update in hr  min  s Forecast update imminent
Kilcummin Harbour surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Kilcummin Harbour sea temperature is
12.4° C
(Which is slightly warmer than usual)

Kilcummin Harbour surf forecast from 27 May 2026:

  • Best quality surf: Saturday 30 May, 1PM (local time) - 3.5ft (1.0m), 12s period, W swell with offshore winds.
  • Most powerful swell: Thursday 4 Jun, 1AM (local time) - 7ft (2.1m), 11s period, WSW swell with 990 kJ wave energy.
  • Next surfable swell (1★+): Thursday 28 May, 1AM (local time) - 2ft (0.6m), 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 Thursday (May 28) at 1AM. The primary swell is predicted to be 0.6m and 9s period with a secondary swell of 0.4m and 5s. 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 2.1m 11s and forecast to arrive on Thursday (Jun 04) at 1AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 6s period and expected on Friday (May 29) at 10AM.

Wave TypeTime (IST) & Date Wave Height & Period
Next good surf (1 star+) 1AM (Thu 28th May)2ft (0.6m) 9s
Best Surf 1PM (Sat 30th May)3.5ft (1.0m) 12s
Most Powerful 1AM (Thu 4th Jun)7ft (2.1m) 11s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Light rain (total 3mm), mostly falling on Sat morning. Warm (max 24°C on Wed afternoon, min 11°C on Sat morning). Wind will be generally light.

Days 5-7 Weather Summary

Light rain (total 8mm), mostly falling on Mon morning. Very mild (max 16°C on Sun afternoon, min 11°C on Mon night). Wind will be generally light.

Wed
27
Thursday
28
Friday
29
Saturday
30
Sunday
31
Monday
1
Tuesday
2
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
Rating
(10 max)
0
1
0
0
0
0
1
2
2
3
2
2
2
2
2
2
0
0
1
3
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.7
W
10
0.6
W
9
0.4
W
9
0.4
W
8
0.3
WNW
8
0.4
WNW
9
1.4
W
7
0.9
WSW
9
0.9
WSW
10
1.8
WSW
12
1.5
WSW
11
1.5
WSW
12
1.5
W
12
1.2
WSW
11
1.1
WSW
11
1
W
10
1.1
W
10
0.9
WSW
9
0.9
WSW
10
1.3
W
13
1.7
WSW
12
Wave Graph
Metric surfscale
Energy kJ
90
58
24
22
13
32
206
127
163
828
521
589
617
363
286
200
219
138
154
564
780
Wind (km/h)
15
E
10
ESE
25
SSE
10
S
30
SSW
20
SW
25
WSW
15
S
15
SSE
20
S
20
SW
25
WSW
20
WSW
15
SSE
10
SSE
10
S
10
NW
20
W
20
SW
20
S
15
WSW
cross
cross-off
cross-off
off
cross-off
cross-off
cross-off
off
off
off
cross-off
cross-off
cross-off
cross-off
off
off
cross-on
cross
cross-off
off
cross-off
High Tide
4:22PM2.80m
4:28AM2.95m
5:01PM2.95m
5:10AM2.95m
5:37PM3.07m
5:48AM2.95m
6:11PM3.15m
6:25AM2.95m
6:45PM3.19m
7:01AM2.91m
7:20PM3.21m
7:37AM2.85m
7:57PM3.18m
8:12AM2.76m
Low Tide
10:18PM0.82m
10:41AM0.54m
11:01PM0.71m
11:16AM0.50m
11:39PM0.61m
11:49AM0.48m
00:15AM0.55m
12:22PM0.47m
00:52AM0.52m
12:56PM0.49m
1:28AM0.54m
1:30PM0.52m
2:06AM0.61m
clear
part cloud
cloud
cloud
cloud
part cloud
clear
cloud
light rain
rain showers
part cloud
part cloud
part cloud
cloud
light rain
light rain
part cloud
part cloud
light rain
rain showers
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:13
5:13
5:11
5:11
5:09
5:09
5:07
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:52
9:53
9:54
9:55
9:58
9:59
10:00
10:00
3
1
3
4
2
7
5
Temp °C
24
19
16
18
15
15
16
14
12
15
13
15
16
13
14
14
12
14
16
13
14
23
17
13
17
12
9
11
12
8
12
11
10
12
11
13
13
10
12
12
11
8
Swell 1
Height (m)
Direction
Period (s)
0.7
W
10
0.6
W
9
0.4
W
9
0.4
W
8
0.3
WNW
8
0.4
WNW
9
0.4
WSW
11
0.9
WNW
7
0.9
WSW
10
1.8
WSW
12
1.5
WSW
11
1.5
WSW
12
0.4
N
10
1.2
WSW
11
1.1
WSW
11
1
W
10
1.1
W
10
0.9
WSW
9
0.9
WSW
10
1.3
W
13
0.2
N
8
Energy kJ
90
58
24
22
13
32
47
93
163
828
521
589
31
363
286
200
219
138
154
564
4
Swell 2
Height (m)
Direction
Period (s)
0.4
NW
7
0.4
NNE
5
0.3
NNW
6
0.3
SE
3
0.2
WNW
10
0.3
WSW
12
0.1
W
18
0.9
WSW
9
0.5
NW
7
0.3
SE
4
0.3
NNW
10
0.4
N
10
0.1
NW
8
0.5
N
10
0.5
N
10
0.5
N
10
0.4
N
9
0.6
N
5
0.5
W
15
0.3
N
8
0.2
N
7
Energy kJ
11
8
7
1
10
30
6
127
23
2
20
30
3
54
48
46
25
16
106
10
4
Swell 3
Height (m)
Direction
Period (s)
0.1
W
18
0.4
NW
6
0.1
W
18
0.2
NNW
6
0.1
SW
16
0.1
W
19
0.1
SW
16
0.5
W
13
0.3
NW
8
0.1
NW
7
0.1
NW
9
0.1
NW
7
0.1
NW
6
0.1
W
14
0.3
N
8
0.4
W
12
Energy kJ
6
10
6
3
10
7
10
90
9
2
3
2
2
4
12
45
Wind waves
Height (m)
Direction
Period (s)
0.4
NNE
5
0.4
ESE
3
0.5
SE
3
1.1
SW
5
1.4
WSW
6
1.4
W
7
0.6
SE
3
0.4
SSE
3
1.5
W
12
0.8
WNW
5
0.8
SSE
4
1.7
WSW
12
Energy kJ
9
3
5
47
131
206
9
3
617
32
17
780
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
2
2
3
2
2
2
2
2
2
1
1
2
3
2
Distance (km)
10
0
111
520
450
2
2
0
0
0
2
227
227
0
0
0
2
227
2
0
145
Best forecast wave conditions in Mayo and Achill Island
Rating
(10 max)
1
1
1
1
2
2
3
2
2
2
2
2
2
3
Best forecast wave conditions in Ireland
Rating
(10 max)
1
1
1
2
1
2
3
3
2
3
3
2
2
2
2
1
2
4
2
Header Global
Rating
(10 max)
6
9
9
6
5
4
5
5
5
7
7
6
5
4
4
4
5
6
4
4
4
  • 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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