Crab Island Surf Break

Lat Long: 53.04° N 9.39° W

Crab Island Surf Forecast and Surf Report

Issued: 6 am 01 Aug 2026 (local time)

Forecast update in  hr  min

Today's Crab Island sea temperature is
16.7° C
1.1° 

Crab Island surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Crab Island surf forecast from 1 Aug 2026:

  • Best quality surf: Sunday 2 Aug, 4PM (local time) - 2ft (0.6m), 10s period, WSW swell with cross-offshore winds.
  • Most powerful swell: Wednesday 5 Aug, 7PM (local time) - 4.5ft (1.4m), 6s period, WNW swell with 127 kJ wave energy.
  • Next surfable swell (1★+): Sunday 2 Aug, 4PM (local time) - 2ft (0.6m), 10s period with WSW swell.

Best Forecast Surf Conditions for Crab Island this week:

The surf forecast for Crab Island over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Aug 02) at 4PM. The primary swell is predicted to be 0.6m and 10s period with a secondary swell of 0.4m and 8s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Crab Island in the next 16 days are 1.4m 6s and forecast to arrive on Wednesday (Aug 05) at 7PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 2s period and expected on Monday (Aug 03) at 4AM.

Wave TypeTime (IST) & Date Wave Height & Period
Next good surf (1 star+) 4PM (Sun 2nd Aug)2ft (0.6m) 10s
Best Surf 4PM (Sun 2nd Aug)2ft (0.6m) 10s
Most Powerful 7PM (Wed 5th Aug)4.5ft (1.4m) 6s

Table - best surf conditions forecast for Crab Island over the next 16 days.


The Lowdown

Alright folks, Rusty here. Let’s have a look at what’s on the cards for the next 16 days.

Right off the bat, I gotta be straight with you – this is a tough stretch. The whole 16-day window is looking pretty quiet. There’s a long gap from the start, right through to Tuesday the 12th of August, where there’s really nothing worth paddling out for. We’re looking at tiny swell, mostly short-period stuff, and a lot of onshore or cross-onshore winds messing things up. The water’s a touch warmer than normal at 62°F, which is a little unusual for this time of year, but it won’t make up for the lack of waves.

The only faint glimmer I can see is on the morning of Wednesday the 12th of August at Crab Island (Clare). It’s a reef break, pretty exposed, so it needs the right swell. We’re looking at a 3ft swell from the WSW, with a period of 8 seconds, and a south-southeast wind just 9 mph, blowing cross-offshore. That’ll clean things up nicely. The wave energy is moderate at 197, so there’s a bit of push behind it. The commentary says “surfable waves but very ordinary conditions,” which is about as optimistic as it gets for this run. The swell direction is a bit off from the optimum W, but with the wind playing nice, it might be your only chance. It’s a fairly consistent spot, but expect a few others with the same idea, as it’s often crowded.

Honestly, the rest of the period is a write-off. There’s a lot of small, weak swell and strong onshore winds. By the 15th and 16th of August, the swell gets a bit bigger, hitting 3ft to 4ft from the west, but the wind is howling from the west at 22 to 28 mph. That’s a messy, lumpy onshore mess. For a reef setup like this, it’s going to be blown out and ugly. Might be more interesting for the kite surfers than us paddle guys.

So, keep your expectations low. If you’re desperate, the morning of the 12th is your best bet, but don’t hold your breath for much else.

Rusty.

Short Range Forecast

Moderate rain (total 16mm), heaviest on Sun afternoon. Warm (max 20°C on Mon afternoon, min 12°C on Sun morning). Wind will be generally light.

Days 4-6 Weather Summary

Light rain (total 6mm), mostly falling on Tue morning. Very mild (max 18°C on Tue afternoon, min 14°C on Wed night). Winds increasing (calm on Tue morning, fresh winds from the NW by Wed afternoon).

Saturday
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Sunday
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Monday
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Tuesday
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Wednesday
5
Thursday
6
Friday
7
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Night
AM
PM
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AM
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PM
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AM
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Rating
(10 max)
0
0
0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
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)
0.7
WNW
6
0.4
WSW
8
0.4
WSW
8
0.4
NW
8
0.6
WSW
10
0.7
SW
9
0.5
SW
9
0.5
SW
8
0.3
SW
8
0.3
SW
7
0.2
W
9
0.2
W
10
0.8
WNW
4
1.4
WNW
5
1.1
WNW
6
0.8
WNW
5
0.3
W
10
0.3
W
9
0.4
NW
9
0.8
WNW
9
0.9
WNW
9
Wave Graph
Metric surfscale
Energy kJ
44
24
23
18
61
81
37
35
9
8
6
8
17
102
74
31
16
15
22
92
111
Wind (km/h)
15
W
15
W
5
NE
10
ESE
15
SE
20
E
15
E
10
E
15
E
10
E
10
NNW
5
NW
15
WNW
35
NW
30
NW
15
WNW
15
W
10
SW
20
SSW
15
W
15
W
Wind State
on
on
glassy
off
cross-off
off
off
off
off
off
cross
cross-on
on
cross-on
cross-on
cross-on
on
cross-on
cross-on
on
on
High Tide
7:56PM4.30m
8:22AM4.01m
8:30PM4.21m
8:58AM3.96m
9:06PM4.07m
9:36AM3.86m
9:48PM3.89m
10:21AM3.73m
10:38PM3.67m
11:16AM3.58m
11:41PM3.47m
12:24PM3.48m
1:00AM3.35m
Low Tide
1:38PM0.55m
2:02AM0.29m
2:11PM0.59m
2:34AM0.36m
2:46PM0.69m
3:09AM0.50m
3:25PM0.83m
3:49AM0.70m
4:11PM1.03m
4:39AM0.95m
5:11PM1.23m
5:45AM1.20m
6:36PM1.35m
clear
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clear
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<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:54
5:54
5:56
5:58
6:00
6:01
6:03
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:31
9:30
9:29
9:27
9:24
9:22
9:21
 mm
2
4
3
7
1
1
1
2
1
1
Temp °C
14
14
14
13
13
13
18
20
16
17
18
17
16
15
14
14
15
15
16
16
15
Feels °C
11
11
13
11
11
10
16
18
14
18
18
17
12
9
8
11
12
12
13
14
13
  • 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 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 16 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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