Killadoon surfForecast / Mayo and Achill Island / Ireland

information circle12 Day Weather and Surf, issued 11 pm Wednesday 17 Dec 2025 IST
Forecast update in hr  min  s Forecast update imminent
Killadoon surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Killadoon sea temperature is
10.4° C
(Which is normal for this time of year)


Best Forecast Surf Conditions for Killadoon this week:

The surf forecast for Killadoon over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Dec 21) at 12AM. The primary swell is predicted to be 2.0m and 17s period. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Killadoon in the next 12 days are 3.0m 19s and forecast to arrive on Thursday (Dec 18) at 6AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 4s period and expected on Saturday (Dec 20) at 3AM.

Wave TypeTime (IST) & Date Wave Height & Period
Next good surf (1 star+)12AM (Sun 21st Dec)6.5ft (2.0m) 17s
Best Surf12AM (Sun 21st Dec)6.5ft (2.0m) 17s
Most Powerful 6AM (Thu 18th Dec)10ft (3.0m) 19s

Table - best surf conditions forecast for Killadoon over the next 12 days.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Heavy rain (total 43mm), heaviest during Thu morning. Very mild (max 10°C on Fri afternoon, min 5°C on Thu morning). Mainly near gales.

Days 3-6 Weather Summary Moderate rain (total 14mm), heaviest on Sun afternoon. Mild temperatures (max 9°C on Sun night, min 5°C on Sat night). Mainly fresh winds.

Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wed
24
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
0
4
0
0
0
0
0
1
0
4
3
2
0
0
1
0
1
0
1
1
0
Swell
Height Map
Wave Height (m) & direction (?)
3
W
2.5
W
2.5
W
2.5
W
2.5
W
2.1
W
1.2
W
1.7
WSW
1.2
W
2
W
1.8
W
1.4
W
0.9
W
0.6
W
0.5
W
0.3
W
0.3
WNW
0.5
W
0.4
WNW
0.5
W
0.4
WNW
Period(s) (?)201918171615131212171616141211111514151312
Wave
Graph
(?)Metric surfscale
Energy kJ (?)7246527741564203365919764928024252344166795231510866204493738950
Wind
(km/h)
45
SW
15
SE
40
WSW
50
WSW
45
WSW
40
SW
50
S
35
S
20
WSW
15
ESE
20
E
15
NE
30
NE
25
E
20
E
15
E
20
E
20
E
15
ENE
10
NE
20
NNE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
cross-
off
cross-
on
cross-
on
cross-
on
crosscross-
off
cross-
off
cross-
on
offcross-
off
cross-
off
cross-
off
offoffoffoffcross-
off
cross-
off
cross-
off
cross
High Tide
/ height (m)
4:05AM
3.41
4:29PM
3.22
4:42AM
3.52
5:06PM
3.30
5:18AM
3.61
5:43PM
3.33
5:53AM
3.66
6:20PM
3.33
6:29AM
3.68
6:56PM
3.28
7:04AM
3.65
7:34PM
3.22
7:41AM
3.59
Low Tide
/ height (m)
9:48PM
0.89
10:18AM
0.77
10:25PM
0.82
10:55AM
0.65
11:01PM
0.77
11:31AM
0.58
11:35PM
0.73
12:06PM
0.53
12:09AM
0.73
12:42PM
0.52
12:43AM
0.75
1:18PM
0.54
1:18AM
0.81
1:56PM
0.57
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wed
24
Sunrise-8:52--8:52--8:52--8:53--8:55--8:55--8:55-
Sunset--4:19--4:19--4:20--4:20--4:20--4:21--4:22
thunderstorm
heavy rain
rain showers
thunderstorm
rain showers
light rain
light rain
rain showers
part cloud
part cloud
cloud
light rain
mod rain
clear
cloud
part cloud
part cloud
clear
part cloud
part cloud
clear
Rain (mm)
321261154---410--------
Temp. °C97999101088757987756799
Feels °C (?)-130-2-12103201522301465
  • 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 Killadoon Surf forecast

The above surf forecast table for Killadoon provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Killadoon can be found by selecting the local surf guide option on the grey menu. Our Killadoon 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 (Killadoon) 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 Killadoon 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.

Are you planning a holiday in Mayo and Achill Island? If you are looking for accommodation near Killadoon, camping, hotels and holiday cottages in Mayo and Achill Island, consider staying in Westport which is 28 km (17 miles) away. Other places in and around Mayo and Achill Island where you can find information about places to rent, and car hire include Belmullet which is 58 km (36 miles) away, Claremorris, Ballina and Galway.

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