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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
16 Day Weather and Surf, issued 6 pm Sunday 17 May 2026 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
11.8° 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 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (May 18) at 1AM. The primary swell is predicted to be 2.5m and 12s period with a secondary swell of 0.3m and 9s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Kilcummin Harbour in the next 16 days are 3.0m 14s and forecast to arrive on Wednesday (May 20) at 4AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 4s period and expected on Tuesday (May 19) at 1AM.
| Wave Type | Time (IST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Mon 18th May) | 8ft (2.5m) 12s |
| Best Surf | 1AM (Mon 18th May) | 8ft (2.5m) 12s |
| Most Powerful | 4AM (Wed 20th May) | 10ft (3.0m) 14s |
Table - best surf conditions forecast for Kilcummin Harbour over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 16mm), heaviest on Tue morning. Very mild (max 14°C on Wed morning, min 6°C on Sun night). Winds increasing (calm on Sun night, fresh winds from the SE by Mon night). | Days 5-7 Weather SummaryLight rain (total 8mm), mostly falling on Thu night. Very mild (max 18°C on Fri afternoon, min 12°C on Wed afternoon). Wind will be generally light. | ||||||||||||||||||||
Sun 17 | Monday 18 | Tuesday 19 | Wednesday 20 | Thursday 21 | Friday 22 | Saturday 23 | |||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
W 12 | WNW 12 | WNW 11 | WNW 10 | WNW 10 | WSW 9 | W 9 | W 15 | W 13 | W 12 | W 12 | WSW 11 | WSW 10 | WSW 13 | WSW 12 | WSW 12 | W 10 | WSW 11 | W 10 | W 9 | W 9 | |
2527 | 1558 | 846 | 544 | 205 | 80 | 165 | 2792 | 2504 | 1299 | 519 | 487 | 419 | 888 | 505 | 418 | 216 | 187 | 122 | 60 | 40 | |
Wind (km/h) | |||||||||||||||||||||
cross-on | glassy | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | off | off | off | off | cross-off | off | cross-off | off | glassy | on | on | on | |
High Tide | 6:56PM3.61m | 7:17AM3.46m | 7:41PM3.64m | 8:08AM3.30m | 8:30PM3.60m | 9:01AM3.06m | 9:23PM3.49m | 9:58AM2.80m | 10:21PM3.34m | 11:02AM2.57m | 11:26PM3.19m | 12:14PM2.43m | 00:35AM3.06m | ||||||||
Low Tide | 1:01AM0.03m | 1:18PM0.04m | 1:51AM0.05m | 2:03PM0.18m | 2:43AM0.17m | 2:50PM0.38m | 3:42AM0.36m | 3:42PM0.59m | 4:48AM0.56m | 4:42PM0.81m | 6:03AM0.70m | 5:54PM0.97m | 7:21AM0.75m | ||||||||
 |  |  |  |  | | | |  | | | | |  | | | |  | |  | | |
 | — | — | 5:28 | — | — | 5:26 | — | — | 5:24 | — | — | 5:24 | — | — | 5:22 | — | — | 5:20 | — | — | 5:18 |
 | — | 9:37 | — | — | 9:37 | — | — | 9:39 | — | — | 9:42 | — | — | 9:43 | — | — | 9:45 | — | — | 9:45 | 9:47 |
2 | — | — | 1 | 4 | 5 | 4 | — | — | — | 1 | 1 | — | 6 | — | — | — | — | — | — | — | |
Temp °C | 10 | 7 | 12 | 12 | 11 | 13 | 12 | 11 | 14 | 14 | 14 | 15 | 17 | 14 | 17 | 18 | 16 | 15 | 15 | 15 | 17 |
5 | 3 | 7 | 6 | 8 | 9 | 8 | 6 | 8 | 11 | 11 | 11 | 14 | 12 | 14 | 14 | 15 | 13 | 14 | 15 | 16 | |
Swell 1 Height (m) Direction Period (s) | W 12 | WNW 12 | WNW 11 | WNW 10 | WNW 10 | WSW 9 | W 9 | N 8 | W 13 | W 12 | W 12 | WSW 11 | WSW 10 | WSW 13 | WSW 12 | WSW 12 | W 10 | WSW 11 | W 10 | W 9 | W 9 |
 kJ | 2527 | 1558 | 846 | 544 | 205 | 80 | 165 | 5 | 2504 | 1299 | 519 | 487 | 419 | 888 | 505 | 418 | 216 | 187 | 122 | 60 | 40 |
Swell 2 Height (m) Direction Period (s) | NNE 9 | NNE 9 | NNE 9 | NNE 9 | N 9 | WNW 9 | W 16 | N 8 | N 8 | N 8 | NW 6 | NW 6 | NW 6 | NW 8 | N 8 | N 8 | N 7 | N 7 | — | W 14 | — |
| kJ | 17 | 16 | 16 | 15 | 14 | 33 | 83 | 5 | 5 | 1 | 14 | 6 | 1 | 3 | 1 | 1 | 1 | 1 | — | 4 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | W 15 | W 13 | W 13 | — | — | — | N 8 | N 7 | — | — | — | N 8 | N 7 | — | — | — | W 14 |
| kJ | — | — | — | — | 4 | 32 | 55 | — | — | — | 1 | 1 | — | — | — | 1 | 1 | — | — | — | 4 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | SE 4 | S 3 | S 3 | W 15 | — | — | SSE 3 | SSE 3 | — | SSE 3 | SSE 3 | — | — | — | — | — | NNE 3 |
| kJ | — | — | — | — | 39 | 6 | 5 | 2792 | — | — | 3 | 4 | — | 3 | 4 | — | — | — | — | — | 2 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 171 | 0 | 10 | 10 | 166 | 2 | 0 | 171 | 233 | 0 | 0 | 0 | 0 | 11 | 0 | 2 | 0 | 0 | 55 | 11 | 66 |
Best forecast wave conditions in Mayo and Achill Island | |||||||||||||||||||||
Best forecast wave conditions in Ireland | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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 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.
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 16 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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