Crab Island Surf Forecast

/ Clare (14 surf breaks) /

Ireland (149 surf breaks) / Lat Long: (53.04° N 9.39° W)

Surf Forecasts:

Crab Island surfForecast / Clare / Ireland

12 Day Weather and Surf, issued 6 pm Wednesday 17 Sep 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 15.8° C
(Which is 1.1°C warmer than 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 (Sep 18) at 7AM. The primary swell is predicted to be 2.4m and 11s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Crab Island in the next 12 days are 3.0m 12s and forecast to arrive on Thursday (Sep 18) at 1AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 4s period and expected on Saturday (Sep 20) at 1PM.

Wave Type	Time (IST) & Date	Wave Height & Period
Next good surf (1 star+)	7AM (Thu 18th Sep)	8ft (2.4m) 11s
Best Surf	7AM (Thu 18th Sep)	8ft (2.4m) 11s
Most Powerful	1AM (Thu 18th Sep)	10ft (3.0m) 12s

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

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Short Range Forecast Light rain (total 9mm), mostly falling on Thu morning. Very mild (max 17°C on Thu morning, min 12°C on Wed night). Winds decreasing (strong winds from the SW on Wed afternoon, calm by Fri night).											Days 3-6 Weather Summary Light rain (total 4mm), mostly falling on Sat night. Very mild (max 13°C on Sun afternoon, min 9°C on Sat night). Winds decreasing (near gales from the N on Sat night, light winds from the NW by Tue morning).
	Wed 17		Thursday 18			Friday 19			Saturday 20			Sunday 21			Monday 22			Tuesday 23
	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM
Rating (10 max)	0	0	3	0	0	0	1	3	1	0	0	0	0	0	0	0	0	0	0	1	1
Swell Height Map See all maps
Wave Height (m) & direction (?)	WSW	W	W	WSW	WSW	WSW	W	W	W	N	N	N	N	NW	NW	NW	WNW	W	W	W	W
Period(s) (?)	13	12	10	10	10	10	10	10	9	5	6	5	5	6	6	11	10	14	13	12	10
Wave Graph (?)
kJ (?)	5195	2738	962	502	766	741	1069	654	215	106	360	146	77	22	5	5	10	37	84	174	141
Wind (km/h)	SW	SW	ESE	SSW	SW	SW	SW	S	NNE	N	N	NNE	NNE	NNE	NE	NE	NE	NW	NW	ENE	ESE
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- on	cross- on	cross- off	cross- on	cross- on	cross- on	cross- on	glass	cross- off	cross	cross	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- on	cross- on	cross- off	off
High Tide / height (m)		3:44AM 3.52		3:57PM 3.83		4:34AM 3.79	4:43PM 4.10		5:13AM 4.02	5:21PM 4.29		5:47AM 4.18	5:55PM 4.40		6:18AM 4.29	6:27PM 4.44		6:47AM 4.32	6:57PM 4.39		7:15AM 4.27
Low Tide / height (m)		9:31PM 0.96	9:50AM 1.11		10:20PM 0.64	10:34AM 0.82		10:58PM 0.39	11:10AM 0.58		11:32PM 0.21	11:43AM 0.41		12:03AM 0.12	12:14PM 0.31		12:32AM 0.12	12:44PM 0.29		1:00AM 0.21

	Wed 17		Thursday 18			Friday 19			Saturday 20			Sunday 21			Monday 22			Tuesday 23
Sunrise	-	-	7:15	-	-	7:16	-	-	7:18	-	-	7:20	-	-	7:22	-	-	7:24	-	-	7:24
Sunset	7:49	-	-	7:46	-	-	7:44	-	-	7:42	-	-	7:38	-	-	7:37	-	-	7:35	-	-

Rain (mm)	-	-	6	2	1	-	-	-	-	-	4	-	-	-	-	-	-	-	-	-	-
Temp. °C	14	14	17	17	17	14	14	14	13	12	10	12	13	11	11	13	11	13	14	13	13
Feels °C (?)	6	7	13	12	13	9	10	13	8	2	-2	2	3	2	4	7	5	11	11	10	12

Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)

Recent Eyeball Surf Reports for Clare

Wind Update The wind is still cross-on at Crab Island (strong winds from the WSW at Mace Head 46 km from Crab Island). A 2.5m groundswell from the WSW
1 hour 33 minutes ago Crab Island

Expand

View all

46 km away, 1 h 33 min ago

47 km/h

WSW

0.0

15.8

Air / Water (°C)

Please reload the page to see if there are any updates.

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Crab Island surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.

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.