Crab Island surf break

Crab Island surfForecast / Clare / Ireland

information circle12 Day Weather and Surf, issued 5 am Wednesday 10 Dec 2025 IST
Forecast update in hr  min  s Forecast update imminent
Crab Island surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Crab Island sea temperature is
10.9° C
(Which is normal for this time of year)


Best Forecast Surf Conditions for Crab Island this week:

The surf forecast for Crab Island over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Dec 11) at 9AM. The primary swell is predicted to be 4.5m and 14s period with a secondary swell of 0.6m and 22s. The wind is predicted to be cross-shore as the swell arrives.

The most powerful waves expected at Crab Island in the next 12 days are 6.0m 18s and forecast to arrive on Friday (Dec 12) at 9AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Sunday (Dec 14) at 9PM.

Wave TypeTime (IST) & Date Wave Height & Period
Next good surf (1 star+) 9AM (Thu 11th Dec)15ft (4.5m) 14s
Best Surf 9AM (Thu 11th Dec)15ft (4.5m) 14s
Most Powerful 9AM (Fri 12th Dec)20ft (6.0m) 18s

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

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Moderate rain (total 15mm), heaviest on Thu morning. Very mild (max 12°C on Wed night, min 7°C on Thu night). Mainly strong winds.

Days 3-6 Weather Summary Heavy rain (total 41mm), heaviest during Sun afternoon. Very mild (max 14°C on Sun afternoon, min 8°C on Mon night). Mainly near gales.

Wednesday
10
Thursday
11
Friday
12
Saturday
13
Sunday
14
Monday
15
Tuesday
16
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
!
!
0
!
!
!
0
0
0
!
0
0
0
0
0
0
!
!
Swell
Height Map
Wave Height (m) & direction (?)
3.5
W
4
W
3.5
WSW
4.5
WSW
3.5
WSW
4
W
6
W
5.5
W
5
W
4.5
W
5
WSW
4
W
4
W
3.5
W
3.5
WSW
3.5
W
3.5
WSW
4
WSW
4
W
3.5
W
3
W
Period(s) (?)111213141416181816141313151414141413151413
Wave
Graph
(?)Metric surfscale
Energy kJ (?)330746204231744246918757222162005712190856388025400669255824182422041246344785352862733
Wind
(km/h)
45
WSW
45
SW
45
S
35
S
20
WSW
30
SSW
30
SW
30
SW
30
S
35
S
60
SSW
30
SW
25
S
45
SSW
40
SW
40
SSW
40
SSW
45
WSW
30
WNW
15
W
35
SSE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
oncross-
on
crosscrosscross-
on
cross-
on
cross-
on
cross-
on
crosscrosscross-
on
cross-
on
crosscrosscross-
on
crosscross-
on
cross-
on
ononcross-
off
High Tide
/ height (m)
9:41PM
3.58
9:53AM
3.74
10:41PM
3.41
10:53AM
3.52
11:43PM
3.33
11:56AM
3.37
12:43AM
3.35
12:59PM
3.32
1:39AM
3.43
1:58PM
3.36
2:28AM
3.55
2:50PM
3.46
Low Tide
/ height (m)
3:10PM
0.70
3:27AM
1.24
4:14PM
0.95
4:37AM
1.43
5:23PM
1.12
5:55AM
1.49
6:32PM
1.19
7:06AM
1.43
7:30PM
1.19
8:03AM
1.29
8:19PM
1.14
8:49AM
1.13
9:02PM
1.06
Wednesday
10
Thursday
11
Friday
12
Saturday
13
Sunday
14
Monday
15
Tuesday
16
Sunrise8:38--8:40--8:41--8:41--8:42--8:44--8:45--
Sunset-4:20--4:20--4:20--4:20--4:20--4:20--4:20-
rain showers
part cloud
part cloud
mod rain
rain showers
rain showers
rain showers
rain showers
rain showers
light rain
light rain
light rain
mod rain
heavy rain
rain showers
rain showers
thunderstorm
thunderstorm
rain showers
clear
rain showers
Rain (mm)
1--61222135261332252-5
Temp. °C101112129899912121212141099910109
Feels °C (?)01253231231673300-135-2
  • 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 Crab Island Surf forecast

The above surf forecast table for Crab Island provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Crab Island can be found by selecting the local surf guide option on the grey menu. Our Crab Island 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 (Crab Island) 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 Crab Island 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 Clare? If you are looking for accommodation near Crab Island, camping, hotels and holiday cottages in Clare, consider staying in Galway which is 35 km (22 miles) away. Other places in and around Clare where you can find information about places to rent, and car hire include Inis which is 35 km (22 miles) away, Shannon, Foynes and Limerick.

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