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Carrownisky Surf Forecast
/ Mayo and Achill Island (14 surf breaks) /
Surf Forecasts:
Carrownisky surfForecast / Mayo and Achill Island / Ireland
48hr Weather and Surf, issued 12 am Wednesday 20 May 2026 ISTForecast update in hr min s Forecast update imminent
Carrownisky surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Carrownisky sea temperature is
11.3° C
(Which is normal for this time of year)How big are the waves at Carrownisky today?
The current surf forecast for Carrownisky at 9AM is: 1.0m 13s primary swell from a West direction (forecast issued at 12:00am May 20). The wind direction is predicted to be onshore.
| Time (IST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 May) | 3.5ft (1.0m) | 13s |
| Afternoon (20 May) | 2.5ft (0.8m) | 12s |
| Evening (20 May) | 2ft (0.6m) | 12s |
Table - waves today at Carrownisky. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 19mm), heaviest on Thu afternoon. Very mild (max 15°C on Fri morning, min 11°C on Tue night). Mainly fresh winds. | ||||||||||||||||||||||||
Wednesday 20 | Thursday 21 | Friday 22 | ||||||||||||||||||||||
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 | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
WSW 14 | WSW 14 | W 13 | W 13 | WSW 13 | W 12 | W 12 | WSW 12 | W 11 | WSW 11 | WSW 9 | WSW 9 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 11 | WSW 10 | SW 11 | SW 11 | SW 10 | WSW 10 | |
651 | 756 | 440 | 350 | 218 | 141 | 137 | 106 | 63 | 65 | 49 | 49 | 51 | 51 | 52 | 57 | 85 | 86 | 64 | 63 | 165 | 224 | 132 | 57 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | on | on | cross-on | cross-on | cross | cross-off | cross-off | cross | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | cross-on | cross-on | cross | |
High Tide | 8:47AM3.61m | 9:01PM3.81m | 9:45AM3.36m | 9:57PM3.60m | 10:50AM3.14m | |||||||||||||||||||
Low Tide | 2:23AM0.15m | 2:38PM0.62m | 3:19AM0.33m | 3:32PM0.87m | 4:22AM0.53m | 4:36PM1.11m | ||||||||||||||||||
 | |  |  |  | | |  | | |  | | | | | | | | | | | |  |  | |
 | — | 5:31 | — | — | — | — | — | — | — | 5:28 | — | — | — | — | — | — | — | 5:28 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 9:42 | — | — | — | — | — | — | — | 9:43 | — | — | — | — | — | — | — | 9:45 | — |
1 | 1 | 1 | — | — | — | — | — | 2 | 3 | 1 | — | — | 4 | 4 | 1 | — | — | — | — | — | — | — | — | |
Temp °C | 11 | 11 | 11 | 12 | 12 | 12 | 14 | 13 | 13 | 13 | 13 | 13 | 14 | 14 | 13 | 14 | 13 | 13 | 13 | 14 | 15 | 14 | 13 | 13 |
4 | 4 | 6 | 6 | 7 | 8 | 11 | 9 | 10 | 7 | 8 | 9 | 12 | 11 | 9 | 10 | 9 | 10 | 10 | 10 | 9 | 9 | 9 | 10 | |
Swell 1 Height (m) Direction Period (s) | — | — | — | — | WSW 13 | W 12 | W 12 | WSW 12 | W 11 | WSW 11 | WSW 9 | WSW 9 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 11 | WSW 10 | — | — | — | WSW 10 |
 kJ | — | — | — | — | 218 | 141 | 137 | 106 | 63 | 65 | 49 | 49 | 51 | 51 | 52 | 57 | 85 | 86 | 64 | 63 | — | — | — | 57 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | NW 6 | NW 10 | NW 9 | NW 8 | NW 8 | NW 8 | NW 8 | — | N 9 | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | 2 | 4 | 3 | 3 | 3 | 2 | 2 | — | 2 | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | WSW 14 | WSW 14 | W 13 | W 13 | SW 3 | SW 3 | SSW 3 | — | SSE 3 | SSW 4 | SSW 4 | SSW 4 | S 3 | S 3 | S 3 | SSE 3 | SSE 3 | S 3 | SSE 3 | S 3 | SW 11 | SW 11 | SW 10 | SSW 3 |
| kJ | 651 | 756 | 440 | 350 | 2 | 5 | 4 | — | 2 | 13 | 16 | 11 | 6 | 3 | 1 | 2 | 1 | 1 | 1 | 2 | 165 | 224 | 132 | 5 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 74 | 74 | 257 | 167 | 166 | 74 | 6 | 6 | 74 | 70 | 70 | 70 | 70 | 70 | 70 | 99 | 70 | 6 | 70 | 70 | 70 | 74 | 74 | 70 |
Best forecast wave conditions in Mayo and Achill Island | ||||||||||||||||||||||||
Best forecast wave conditions in Ireland | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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