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Surf Forecasts:
Crab Island surfForecast / Clare / Ireland
48hr Weather and Surf, issued 6 am Wednesday 20 May 2026 ISTForecast 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
11.4° C
(Which is slightly cooler than normal)How big are the waves at Crab Island today?
The current surf forecast for Crab Island at 1PM is: 2.5m 13s primary swell from a West-southwest direction (forecast issued at 06:00am May 20). The wind direction is predicted to be cross-onshore.
| Time (IST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 May) | 10ft (3.0m) | 13s |
| Afternoon (20 May) | 7.5ft (2.3m) | 12s |
| Evening (20 May) | 6ft (1.8m) | 12s |
Table - waves today at Crab Island. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 6mm), mostly falling on Thu afternoon. Very mild (max 16°C on Fri morning, min 12°C on Wed morning). Mainly fresh winds. | ||||||||||||||||||||||||
Wednesday 20 | Thursday 21 | Friday 22 | Sat 23 | |||||||||||||||||||||
4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
WSW 14 | WSW 13 | W 13 | WSW 13 | WSW 12 | WSW 12 | W 12 | W 11 | WSW 11 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 11 | WSW 11 | WSW 11 | WSW 10 | WSW 11 | WSW 11 | WSW 10 | WSW 10 | WSW 10 | |
4005 | 3341 | 2499 | 1931 | 1316 | 1029 | 786 | 576 | 476 | 532 | 482 | 428 | 358 | 411 | 442 | 586 | 615 | 521 | 443 | 452 | 460 | 435 | 338 | 331 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | on | on | cross-on | cross-on | cross-on | cross-off | cross-off | cross | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-on | cross-on | cross-on | cross-on | cross-on | |
High Tide | 8:37AM4.16m | 8:53PM4.28m | 9:35AM3.90m | 9:51PM4.05m | 10:39AM3.66m | 10:54PM3.83m | ||||||||||||||||||
Low Tide | 2:09AM0.15m | 2:27PM0.61m | 3:03AM0.38m | 3:21PM0.91m | 4:04AM0.64m | 4:25PM1.18m | ||||||||||||||||||
 |  |  | |  | |  | | | | | | | | |  | | | | | | |  | | |
 | 5:31 | — | — | — | — | — | — | — | 5:31 | — | — | — | — | — | — | — | 5:28 | — | — | — | — | — | — | 5:28 |
 | — | — | — | — | — | 9:36 | — | — | — | — | — | — | — | 9:37 | — | — | — | — | — | — | — | 9:38 | — | 9:40 |
1 | 1 | — | — | — | — | — | 1 | 1 | — | — | — | 3 | 1 | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 12 | 12 | 12 | 12 | 13 | 15 | 15 | 13 | 14 | 14 | 15 | 15 | 15 | 14 | 14 | 12 | 13 | 13 | 15 | 16 | 15 | 14 | 14 | 13 |
4 | 5 | 7 | 7 | 9 | 13 | 11 | 9 | 10 | 10 | 12 | 12 | 10 | 10 | 9 | 8 | 10 | 11 | 11 | 12 | 11 | 11 | 12 | 11 | |
Swell 1 Height (m) Direction Period (s) | — | — | W 13 | WSW 13 | WSW 12 | WSW 12 | W 12 | W 11 | WSW 11 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 11 | WSW 11 | WSW 11 | WSW 10 | WSW 11 | WSW 11 | — | WSW 10 | WSW 10 |
 kJ | — | — | 2499 | 1931 | 1316 | 1029 | 786 | 576 | 476 | 532 | 482 | 428 | 358 | 411 | 442 | 586 | 615 | 521 | 443 | 452 | 460 | — | 338 | 331 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | NW 9 | NW 8 | NW 8 | NW 8 | NW 7 | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | 3 | 3 | 3 | 2 | 2 | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | WSW 14 | WSW 13 | — | — | — | — | — | SSE 3 | — | — | — | — | S 3 | — | S 3 | SSE 3 | — | — | — | — | — | WSW 10 | — | — |
| kJ | 4005 | 3341 | — | — | — | — | — | 2 | — | — | — | — | 5 | — | 5 | 6 | — | — | — | — | — | 435 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 138 | 292 | 117 | 97 | 101 | 16 | 11 | 16 | 99 | 82 | 92 | 82 | 139 | 16 | 16 | 16 | 11 | 11 | 99 | 101 | 293 | 92 | 92 | 16 |
Best forecast wave conditions in Clare | ||||||||||||||||||||||||
Best forecast wave conditions in Ireland | ||||||||||||||||||||||||
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