Surf Forecasts:
Crab Island surf forecast from 26 Jul 2026:
- Best quality surf: Saturday 1 Aug, 1AM (local time) - 2.5ft (0.8m), 8s period, WNW swell with offshore winds.
- Most powerful swell: Sunday 26 Jul, 4PM (local time) - 7ft (2.2m), 10s period, WNW swell with 896 kJ wave energy.
- Next surfable swell (1★+): Saturday 1 Aug, 1AM (local time) - 2.5ft (0.8m), 8s period with WNW 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 Saturday (Aug 01) at 1AM. The primary swell is predicted to be 0.8m and 8s period with a secondary swell of 0.2m and 10s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Crab Island in the next 16 days are 2.2m 10s and forecast to arrive on Sunday (Jul 26) at 4PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Friday (Jul 31) at 7PM.
| Wave Type | Time (IST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Sat 1st Aug) | 2.5ft (0.8m) 8s |
| Best Surf | 1AM (Sat 1st Aug) | 2.5ft (0.8m) 8s |
| Most Powerful | 4PM (Sun 26th Jul) | 7ft (2.2m) 10s |
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 couple of weeks.
Honestly, I'm looking at the charts and it's a bit of a grim stretch for Crab Island. There's not a single session in the whole 16-day window that I'd call good. The whole run is a write-off.
We kick off on Saturday, 25th July, with a 6 ft swell from the west-northwest, but it's got a light rain on it and a 16 mph westerly wind that's onshore. The water's sitting at 62°, which is about normal for this time of year. The combined energy is moderate (517), but the wind is just ruining any chance of a clean wave. It's a no-go.
Sunday the 26th picks up a bit, swell goes to 7 ft, still from the west-northwest, but the wind cranks up to 22 mph from the same direction, blowing cross-onshore. That's a fresh, lumpy mess. The energy's up there in the moderate range (844-896), but it's unsurfable.
The whole of the following week is a bust. We see weak to moderate energy (from 102 up to 367), but every single day is plagued by cross-onshore or onshore winds. The wind might drop a little, but it's never favourable. The swell is there, but it's all short-period, wind-affected junk. The best it gets is a "poor surf conditions" tag for every single entry.
We hit a bit of a lull at the start of August, with swell dropping to 2 ft and 1 ft on the 1st and 3rd, but the wind is still messy. The 1st of August morning has a brief moment of clean conditions with a 22 mph cross-offshore wind, but the swell is a tiny 2 ft—barely a ripple.
The second week doesn't offer any hope. We get a spike in swell on the 8th and 9th of August, with 8 ft and 8 ft on the cards, and the combined energy jumps right up to 909 and 990. But the wind is still cross-onshore, blowing fresh at 16-22 mph. It's a powerful, churning mess, not a surfable wave. This setup looks more interesting for kite surfing than paddle surfing.
So, there you have it. Nothing to get excited about here. It's one of those blank runs that's more normal for this area when the wind doesn't play ball. Forecasts can change, but right now, I'd leave the board at home.
Rusty.
Short Range ForecastLight rain (total 9mm), mostly falling on Mon afternoon. Very mild (max 18°C on Tue morning, min 15°C on Sat night). Mainly strong winds. | Days 5-7 Weather SummaryMostly dry. Very mild (max 19°C on Tue afternoon, min 13°C on Thu night). Wind will be generally light. | |||||||||||||||||||
Sat 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | ||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | WNW 9 | W 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | W 9 | W 9 | W 8 | W 8 | W 8 | W 8 | WSW 8 | W 7 | W 6 | W 7 | W 8 | W 8 | W 8 | WNW 8 |
Wave Graph  | ||||||||||||||||||||
 kJ | 517 | 849 | 844 | 896 | 586 | 245 | 502 | 306 | 235 | 160 | 156 | 102 | 178 | 123 | 124 | 242 | 240 | 191 | 134 | 77 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross-on | on | on | on | cross | cross | off |
High Tide | 3:59AM3.25m | 4:17PM3.54m | 4:49AM3.43m | 5:02PM3.76m | 5:31AM3.62m | 5:41PM3.97m | 6:08AM3.78m | 6:17PM4.14m | 6:42AM3.91m | 6:50PM4.26m | 7:16AM3.99m | 7:23PM4.31m | ||||||||
Low Tide | 9:55PM1.31m | 10:08AM1.34m | 10:40PM1.09m | 10:51AM1.15m | 11:20PM0.86m | 11:28AM0.95m | 11:55PM0.65m | 12:02PM0.78m | 00:28AM0.48m | 12:34PM0.65m | 1:00AM0.35m | 1:06PM0.57m | 1:31AM0.29m | |||||||
 |  |  | |  | | | | |  |  | | | |  | | | | | | |
 | — | — | 5:43 | — | — | 5:46 | — | — | 5:47 | — | — | 5:48 | — | — | 5:50 | — | — | 5:52 | — | — |
 | — | 9:43 | — | — | 9:42 | — | — | 9:39 | — | — | 9:38 | — | — | 9:37 | — | — | 9:36 | — | — | 9:34 |
mm | 1 | 2 | — | — | — | 2 | 3 | 1 | — | — | — | — | — | — | — | — | — | — | 1 | 3 |
Temp °C | 16 | 16 | 15 | 15 | 15 | 16 | 17 | 17 | 18 | 19 | 18 | 18 | 18 | 17 | 15 | 15 | 14 | 14 | 13 | 14 |
Feels °C | 13 | 11 | 8 | 9 | 11 | 13 | 14 | 14 | 16 | 18 | 16 | 16 | 15 | 15 | 12 | 11 | 10 | 12 | 11 | 11 |
Swell 1 Height (m) Direction Period (s) | — | — | — | — | — | WNW 10 | — | W 9 | W 8 | W 8 | W 8 | W 8 | — | — | — | — | — | W 8 | W 8 | WNW 8 |
| kJ | — | — | — | — | — | 245 | — | 306 | 235 | 160 | 156 | 102 | — | — | — | — | — | 191 | 134 | 77 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 10 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 9 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | WNW 9 | W 10 | WNW 10 | WNW 10 | WNW 10 | WSW 6 | W 9 | — | — | — | — | — | WSW 8 | W 7 | W 6 | W 7 | W 8 | — | — | — |
| kJ | 517 | 849 | 844 | 896 | 586 | 122 | 502 | — | — | — | — | — | 178 | 123 | 124 | 242 | 240 | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 97 | 373 | 588 | 617 | 97 | 97 | 97 | 101 | 92 | 101 | 16 | 16 | 99 | 175 | 164 | 617 | 79 | 3 | 11 | 0 |
Best forecast wave conditions in Clare | ||||||||||||||||||||
Best forecast wave conditions in Ireland | ||||||||||||||||||||
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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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