Crab Island Surf Break

Lat Long: 53.04° N 9.39° W

Crab Island Surf Forecast and Surf Report

Issued: 6 pm 22 Jul 2026 (local time)

Forecast update in  hr  min

Today's Crab Island sea temperature is
16.7° C
1.3° 

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 23 Jul 2026:

  • Most powerful swell: Sunday 26 Jul, 7AM (local time) - 7ft (2.1m), 10s period, WNW swell with 788 kJ wave energy.

Best Forecast Surf Conditions for Crab Island this week:

The most powerful waves expected at Crab Island in the next 16 days are 2.1m 10s and forecast to arrive on Sunday (Jul 26) at 7AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 2s period and expected on Thursday (Jul 23) at 4AM.

Wave TypeTime (IST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 7AM (Sun 26th Jul)7ft (2.1m) 10s

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


The Lowdown

Alright folks, Rusty here. Let’s get into it. We’ve got a stretch ahead for our spot, and I’ll be honest with you – it’s a rough run. This is a real waiting game, so don’t be in a rush.

Looking at the whole 16-day window, the pattern is grim. We’ve got a solid two weeks of poor surf conditions, with very few windows that even look surfable. The first decent opportunity doesn’t roll around until the 5th of August, which is a long, dry spell. From the 22nd of July right through to the 4th of August, it’s a total write-off. The swell is either tiny, the wind is howling onshore, or both. That’s a gap of about 13 days with nothing to recommend.

Let’s start with the one and only spot we’ve got: Crab Island. This is an advanced reef break, and it’s fairly consistent, but it’s exposed to swell from the west. The best direction for this setup is a clean west swell, and unfortunately, we just don’t get that in the right conditions for a long time.

The water temperature has been a touch warmer than normal, sitting at 62°, which is about two and a third degrees Fahrenheit above the average for this time of year. Not a huge deal, but a little unusual.

For the first week, from the 22nd through the 31st of July, it’s just one bad report after another. The swell is tiny – 1 foot to 3 feet – with periods all over the place, mostly under 9 seconds, which is weak, short-period windswell. The combined energy is very low, often in the teens (16) or just barely scrapping into triple digits (225) on the 25th, which is still just moderate energy. The biggest problem is the wind. It’s coming straight onshore or cross-onshore from the west and northwest, making it lumpy, choppy, and messy. For a reef break, that’s a nightmare. The 25th and 26th of July actually see some bigger swell, 5 feet to 6 feet, and the energy jumps up (624), but with 19 to 22 mph winds, it’s just a washing machine. Forget about it.

The 31st of July finally sees a shift with light offshore winds, but the swell is still a pathetic 1 feet, so it’s too small to do anything.

Then we get another blank stretch through the 1st to the 4th of August. Swell is tiny, winds are mostly onshore or cross, and the energy is barely above 20.

Finally, we get a glimmer of hope. On the 5th of August morning, we see a bit of a pulse. The swell is 2 feet from the west with a period of 11 seconds – that’s a proper groundswell, and it’s got some energy behind it (116). The wind is a gentle cross-offshore breeze from the southeast. This is the only window that looks even remotely clean and surfable. The waves will be small, but that long period (11s) will give them some shape for a reef break. It’s the best of a bad bunch, but it’s still “surfable waves but very ordinary conditions.” If you’re desperate for a paddle, this is your only shot.

The 6th of August tries to pump up to 6 feet and 425 energy, but the wind swings back to cross-onshore, ruining it again.

So, who’s the standout? There’s no true standout here. The only real highlight is the 5th of August morning. It’s the only time the forecast gives us any chance of a clean, rideable wave. If you’re an advanced surfer who can make the most of a small, clean, long-period swell, that’s your moment. The break is an exposed reef, so it’s prone to holding that swell well, but it’s a one-off. For beginners, everything is too small, too big, or too messy. For the rest of the run, it’s a total bust.

Hang in there, folks. The forecasts can change, but right now, it’s a sleeping giant.

Rusty.

Short Range Forecast

Light rain (total 2mm), mostly falling on Fri night. Very mild (max 18°C on Wed afternoon, min 12°C on Thu night). Winds increasing (light winds from the NNE on Thu morning, fresh winds from the W by Fri night).

Days 5-7 Weather Summary

Light rain (total 3mm), mostly falling on Sat afternoon. Very mild (max 17°C on Tue morning, min 14°C on Sat night). Winds decreasing (strong winds from the WNW on Sat night, light winds from the WSW by Sun night).

Wed
22
Thursday
23
Friday
24
Saturday
25
Sunday
26
Monday
27
Tuesday
28
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
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)
0.3
W
9
0.3
W
9
0.3
W
8
0.3
W
8
0.3
W
8
0.5
WNW
10
0.8
WNW
8
0.9
WNW
8
1.5
W
7
1.6
W
9
1.9
WNW
10
1.9
WNW
9
1.9
WNW
10
1.5
WNW
9
1.2
W
9
1.2
W
9
1.3
W
9
1.5
W
9
1.6
W
9
1.4
W
9
Wave Graph
Metric surfscale
Energy kJ
14
13
12
12
13
51
92
99
225
412
631
624
651
367
251
235
262
351
407
292
Wind (km/h)
15
NNE
20
NE
10
NNE
15
WNW
10
NNW
15
W
25
W
25
W
30
W
35
W
35
WNW
30
NW
30
NW
20
WNW
20
SW
25
SW
20
SSW
30
SSW
30
SW
25
WSW
Wind State
cross-off
cross-off
cross-off
on
cross-on
on
on
on
on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
High Tide
00:31AM3.22m
1:08PM3.26m
1:41AM3.09m
2:16PM3.25m
2:55AM3.11m
3:22PM3.36m
3:59AM3.25m
4:17PM3.54m
4:49AM3.43m
5:02PM3.76m
5:31AM3.62m
5:41PM3.97m
Low Tide
6:20PM1.48m
6:51AM1.48m
7:43PM1.56m
8:09AM1.56m
8:58PM1.48m
9:16AM1.50m
9:55PM1.31m
10:08AM1.34m
10:40PM1.09m
10:51AM1.15m
11:20PM0.86m
11:28AM0.95m
11:55PM0.65m
cloud
clear
clear
clear
part cloud
part cloud
part cloud
light rain
light rain
light rain
light rain
part cloud
cloud
clear
part cloud
part cloud
part cloud
clear
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:39
5:41
5:43
5:43
5:46
5:47
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:47
9:45
9:45
9:43
9:42
9:39
9:38
 mm
1
1
1
2
Temp °C
18
17
16
16
14
15
15
16
15
16
15
15
15
14
15
16
16
17
17
16
Feels °C
16
14
15
13
11
12
11
12
11
11
8
10
9
10
12
12
13
13
13
13
  • 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 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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