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Carrownisky Surf Forecast
/ Mayo and Achill Island (14 surf breaks) /
Surf Forecasts:
Carrownisky surfForecast / Mayo and Achill Island / Ireland
12 Day Weather and Surf, issued 12 pm Monday 06 Oct 2025 IST
Best Forecast Surf Conditions for Carrownisky this week:
The surf forecast for Carrownisky over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Oct 10) at 7PM. The primary swell is predicted to be 0.5m and 11s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Carrownisky in the next 12 days are 1.6m 11s and forecast to arrive on Tuesday (Oct 07) at 1AM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (IST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7PM (Fri 10th Oct) | 1.5ft (0.5m) 11s |
| Best Surf | 7PM (Fri 10th Oct) | 1.5ft (0.5m) 11s |
| Most Powerful | 1AM (Tue 7th Oct) | 5ft (1.6m) 11s |
Table - best surf conditions forecast for Carrownisky over the next 12 days.
Short Range Forecast Light rain (total 6mm), mostly falling on Mon night. Very mild (max 14°C on Mon morning, min 11°C on Tue afternoon). Winds decreasing (strong winds from the SSW on Mon afternoon, light winds from the WNW by Tue afternoon). | Days 3-6 Weather Summary Mostly dry. Very mild (max 14°C on Sat afternoon, min 11°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Monday 06 | Tuesday 07 | Wednesday 08 | Thursday 09 | Friday 10 | Saturday 11 | Sunday 12 | |||||||||||||||
| AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Rating (10 max) | |||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||
| Period(s) (?) | 10 | 10 | 11 | 13 | 14 | 13 | 12 | 11 | 11 | 11 | 11 | 11 | 11 | 12 | 11 | 10 | 10 | 10 | 8 | 9 | 10 |
Wave (?)Graph  | |||||||||||||||||||||
 kJ (?) | 162 | 420 | 582 | 404 | 320 | 206 | 224 | 195 | 123 | 133 | 126 | 91 | 64 | 77 | 44 | 33 | 31 | 10 | 7 | 8 | 10 |
Wind (km/h) | |||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross | cross- on | cross- on | cross- on | on | on | on | on | on | on | on | cross- on | cross- on | cross- off | off | glass | off | off | off | off |
High Tide / height (m) | 5:31PM 4.04 | 6:00AM 4.04 | 6:11PM 4.19 | 6:38AM 4.17 | 6:52PM 4.22 | 7:17AM 4.17 | 7:36PM 4.12 | 7:58AM 4.05 | 8:22PM 3.88 | 8:42AM 3.83 | 9:14PM 3.55 | 9:32AM 3.53 | 10:15PM 3.18 | ||||||||
Low Tide / height (m) | 11:22AM 0.30 | 11:43PM -0.17 | 12:00PM 0.08 | 12:20AM -0.26 | 12:39PM -0.04 | 12:59AM -0.21 | 1:19PM -0.04 | 1:39AM -0.00 | 2:02PM 0.09 | 2:22AM 0.31 | 2:49PM 0.33 | 3:08AM 0.70 | 3:45PM 0.65 | ||||||||
Monday 06 | Tuesday 07 | Wednesday 08 | Thursday 09 | Friday 10 | Saturday 11 | Sunday 12 | |||||||||||||||
| Sunrise | 7:48 | - | - | 7:50 | - | - | 7:52 | - | - | 7:54 | - | - | 7:56 | - | - | 7:58 | - | - | 8:00 | - | - |
| Sunset | - | 7:05 | - | - | 7:01 | - | - | 7:00 | - | - | 6:58 | - | - | 6:54 | - | - | 6:52 | - | - | 6:51 | - |
 |  |  |  |  |  | | |  | | | | | | | | | | | |  | |
Rain (mm) | - | - | 5 | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 14 | 14 | 14 | 12 | 11 | 11 | 11 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 12 | 13 | 14 | 13 | 13 | 14 | 14 |
| Feels °C (?) | 8 | 7 | 7 | 8 | 7 | 7 | 6 | 7 | 8 | 9 | 10 | 10 | 10 | 10 | 11 | 12 | 14 | 12 | 10 | 12 | 12 |
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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 Mayo and Achill Island
Cross-shore wind has turned cross-on at Carrownisky (moderate winds from the SSW at Mayo Sailing Club 19 km from Carrownisky). 1.4m 7s swell from the SW with a 1.2m 10s swell from the W. 2 swells combining so expect closeout sets.
19 km away, 1 h 26 min ago
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 Carrownisky 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 Carrownisky Surf forecast
The above surf forecast table for Carrownisky provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Carrownisky can be found by selecting the local surf guide option on the grey menu. Our Carrownisky 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 (Carrownisky) 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 Carrownisky 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 Mayo and Achill Island? If you are looking for accommodation near Carrownisky, camping, hotels and holiday cottages in Mayo and Achill Island, consider staying in Westport which is 25 km (16 miles) away. Other places in and around Mayo and Achill Island where you can find information about places to rent, and car hire include Belmullet which is 55 km (34 miles) away, Claremorris, Ballina and Galway.
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