Surf Forecasts:
How big are the waves at Crab Island today (20 Aug):
- Morning surf: Morning surf (20 Aug, local time) - 6ft (1.9m), 10s period with WNW swell.
- Afternoon surf: Afternoon surf (20 Aug, local time) - 5ft (1.6m), 10s period with WNW swell.
- Evening surf: Evening surf (20 Aug, local time) - 3.5ft (1.1m), 9s period with NW swell.
The current surf forecast for Crab Island at 1AM is: 2.3m 10s primary swell from a West-northwest direction and 0.1m 16s secondary swell from a Southwest direction (forecast issued at 06:00pm August 19). The wind direction is predicted to be cross-onshore.
| Time (IST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Aug) | 6ft (1.9m) | 10s |
| Afternoon (20 Aug) | 5ft (1.6m) | 10s |
| Evening (20 Aug) | 3.5ft (1.1m) | 9s |
Table - waves today at Crab Island. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 3mm), mostly falling on Wed afternoon. Very mild (max 16°C on Thu morning, min 12°C on Fri night). Winds decreasing (fresh winds from the WNW on Wed afternoon, light winds from the N by Sat morning). | |||||||||||||||||||
Wed 19 | Thursday 20 | Friday 21 | |||||||||||||||||
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 | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||
Wave Height (m) Direction Period (s) | W 10 | W 10 | W 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | NW 9 | WNW 8 | NW 8 | NW 8 | NW 7 | NW 6 | NW 7 | NW 6 | WSW 10 |
Wave Graph  | |||||||||||||||||||
 kJ | 715 | 813 | 904 | 920 | 788 | 772 | 590 | 434 | 287 | 255 | 178 | 123 | 95 | 93 | 71 | 49 | 49 | 51 | 31 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross-off |
High Tide | 10:42PM3.39m | 11:09AM3.32m | 11:40PM3.09m | 12:14PM3.12m | |||||||||||||||
Low Tide | 4:15PM1.23m | 4:35AM1.37m | 5:11PM1.54m | 5:38AM1.69m | 6:48PM1.74m | ||||||||||||||
 |  |  |  | | | | |  | |  |  | | | | | |  | | |
 | — | — | — | — | 6:24 | — | — | — | — | — | — | — | 6:26 | — | — | — | — | — | — |
 | — | 8:57 | — | — | — | — | — | — | — | 8:54 | — | — | — | — | — | — | — | 8:52 | — |
mm | 1 | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 15 | 15 | 15 | 14 | 14 | 15 | 16 | 16 | 15 | 13 | 13 | 13 | 13 | 13 | 14 | 15 | 15 | 14 |
Feels °C | 9 | 9 | 9 | 10 | 9 | 8 | 9 | 10 | 10 | 9 | 7 | 8 | 8 | 8 | 8 | 9 | 10 | 9 | 10 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 16 | SW 16 | SW 16 | WNW 10 | SW 15 | SW 15 | SW 15 | WNW 9 | SW 14 | NW 9 | WNW 8 | WSW 9 | WSW 8 | WSW 9 | WSW 9 | WSW 9 | WSW 9 | NW 6 |
| kJ | 10 | 10 | 10 | 10 | 788 | 9 | 9 | 8 | 287 | 8 | 178 | 123 | 26 | 23 | 26 | 25 | 25 | 25 | 24 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | SW 16 | — | — | — | SW 15 | — | WSW 9 | WSW 9 | SW 14 | W 14 | W 14 | W 16 | SW 13 | SW 13 | WSW 10 |
| kJ | — | — | — | — | 10 | — | — | — | 8 | — | 8 | 16 | 8 | 4 | 4 | 5 | 7 | 7 | 31 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | SW 14 | SW 14 | — | — | W 17 | W 13 | W 16 | W 16 | WNW 7 |
| kJ | — | — | — | — | — | — | — | — | — | — | 8 | 8 | — | — | 5 | 3 | 5 | 5 | 5 |
Wind waves Height (m) Direction Period (s) | W 10 | W 10 | W 10 | WNW 10 | — | WNW 10 | WNW 10 | WNW 10 | — | WNW 9 | — | — | NW 8 | NW 8 | NW 7 | NW 6 | NW 7 | NW 6 | NNE 3 |
| kJ | 715 | 813 | 904 | 920 | — | 772 | 590 | 434 | — | 255 | — | — | 95 | 93 | 71 | 49 | 49 | 51 | 1 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 300 | 225 | 183 | 628 | 328 | 325 | 351 | 354 | 617 | 164 | 164 | 164 | 164 | 383 | 164 | 164 | 164 | 164 | 11 |
Best forecast wave conditions in Clare | |||||||||||||||||||
Best forecast wave conditions in Ireland | |||||||||||||||||||
Header Global | |||||||||||||||||||
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