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Kilcummin Harbour Surf Forecast
/ Mayo and Achill Island (14 surf breaks) /
Surf Forecasts:
Kilcummin Harbour surfForecast / Mayo and Achill Island / Ireland
12 Day Weather and Surf, issued 5 am Thursday 18 Dec 2025 ISTForecast update in hr min s Forecast update imminent
Kilcummin Harbour surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Kilcummin Harbour sea temperature is
10.4° C
(Which is normal for this time of year)Best Forecast Surf Conditions for Kilcummin Harbour this week:
The surf forecast for Kilcummin Harbour over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Dec 18) at 12PM. The primary swell is predicted to be 7.0m and 19s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Kilcummin Harbour in the next 12 days are 7.0m 19s and forecast to arrive on Thursday (Dec 18) at 12PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.0m 6s period and expected on Tuesday (Dec 23) at 3AM.
| Wave Type | Time (IST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12PM (Thu 18th Dec) | 23ft (7.0m) 19s |
| Best Surf | 12PM (Thu 18th Dec) | 23ft (7.0m) 19s |
| Most Powerful | 12PM (Thu 18th Dec) | 23ft (7.0m) 19s |
Table - best surf conditions forecast for Kilcummin Harbour over the next 12 days.
Updates in hr min s Forecast update imminent
Short Range Forecast Moderate rain (total 17mm), heaviest on Thu morning. Mild temperatures (max 9°C on Fri afternoon, min 4°C on Sat night). Winds decreasing (near gales from the SSE on Fri night, light winds from the SE by Sat night). | Days 3-6 Weather Summary Moderate rain (total 15mm), heaviest on Sun night. Mild temperatures (max 9°C on Sun night, min 4°C on Sun morning). Winds increasing (calm on Sun morning, strong winds from the SE by Mon night). | ||||||||||||||||||||
Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | Wednesday 24 | |||||||||||||||
| 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) (?) | 19 | 18 | 17 | 16 | 15 | 13 | 12 | 12 | 16 | 16 | 16 | 14 | 13 | 12 | 11 | 15 | 14 | 12 | 13 | 13 | 12 |
Wave (?)Graph  | |||||||||||||||||||||
 kJ (?) | 39560 | 33092 | 26620 | 22473 | 15795 | 4646 | 2498 | 2096 | 12425 | 15259 | 9897 | 3879 | 1401 | 669 | 291 | 152 | 322 | 304 | 482 | 418 | 236 |
Wind (km/h) | |||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | cross- off | cross- off | off | off | cross- off | off | glass | cross- on | cross | cross | cross- off | cross- off | cross- off | cross- off | cross- on | cross | cross | cross |
High Tide / height (m) | 4:43PM 2.83 | 5:06AM 3.10 | 5:21PM 2.87 | 5:42AM 3.20 | 5:56PM 2.89 | 6:18AM 3.26 | 6:31PM 2.87 | 6:54AM 3.29 | 7:07PM 2.82 | 7:30AM 3.29 | 7:43PM 2.75 | 8:06AM 3.26 | 8:22PM 2.66 | ||||||||
Low Tide / height (m) | 10:36AM 0.70 | 10:43PM 0.57 | 11:13AM 0.60 | 11:18PM 0.50 | 11:50AM 0.55 | 11:52PM 0.46 | 12:26PM 0.53 | 12:26AM 0.44 | 1:03PM 0.55 | 12:59AM 0.46 | 1:40PM 0.59 | 1:33AM 0.51 | 2:18PM 0.64 | 2:09AM 0.60 | |||||||
Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | Wednesday 24 | |||||||||||||||
| Sunrise | 8:52 | - | - | 8:52 | - | - | 8:53 | - | - | 8:55 | - | - | 8:55 | - | - | 8:56 | - | - | 8:56 | - | - |
| Sunset | - | 4:13 | - | - | 4:13 | - | - | 4:13 | - | - | 4:14 | - | - | 4:14 | - | - | 4:15 | - | - | 4:15 | - |
 |  |  |  |  |  |  | | | |  |  | |  |  | | | | | | | |
Rain (mm) | 11 | 2 | - | - | - | 2 | 2 | - | - | - | 7 | 7 | - | - | - | - | - | 1 | 1 | - | - |
| Temp. °C | 7 | 7 | 8 | 8 | 9 | 9 | 8 | 7 | 6 | 7 | 8 | 9 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 |
| Feels °C (?) | 0 | 0 | -2 | 0 | 2 | 2 | 1 | 3 | 2 | 2 | 1 | 3 | 3 | -1 | -2 | 1 | 1 | 3 | -1 | -1 | -2 |
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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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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Kilcummin Harbour 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.
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Information about the Kilcummin Harbour Surf forecast
The above surf forecast table for Kilcummin Harbour provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Kilcummin Harbour can be found by selecting the local surf guide option on the grey menu. Our Kilcummin Harbour 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 (Kilcummin Harbour) 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 Kilcummin Harbour 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.
Kilcummin Harbour is 19 km (12 miles) from Ballina. If you plan a holiday in Mayo and Achill Island, look for hotels and other accommodation in Ballina. Ballina has rooms for a wide range of budgets as well as car hire and transport links.
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