Surf Forecasts:
Kilcummin Harbour surf forecast from 28 Jul 2026:
- Best quality surf: Tuesday 4 Aug, 4AM (local time) - 6ft (1.8m), 8s period, NW swell with offshore winds.
- Most powerful swell: Tuesday 4 Aug, 7PM (local time) - 10ft (3.0m), 9s period, NW swell with 1,550 kJ wave energy.
- Next surfable swell (1★+): Wednesday 29 Jul, 1AM (local time) - 5ft (1.6m), 8s period with W swell.
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 Wednesday (Jul 29) at 1AM. The primary swell is predicted to be 1.6m and 8s period with a secondary swell of 0.6m and 9s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Kilcummin Harbour in the next 16 days are 3.0m 9s and forecast to arrive on Tuesday (Aug 04) at 7PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Monday (Aug 03) at 10AM.
| Wave Type | Time (IST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Wed 29th Jul) | 5ft (1.6m) 8s |
| Best Surf | 4AM (Tue 4th Aug) | 6ft (1.8m) 8s |
| Most Powerful | 7PM (Tue 4th Aug) | 10ft (3.0m) 9s |
Table - best surf conditions forecast for Kilcummin Harbour over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s break down what’s coming for Kilcummin Harbour.
First thing – the water is sitting at 62°, which is a touch warmer than normal for this time of year. A nice little bonus.
Right now, it’s a mixed bag. We’ve got some swell, but the wind is going to mess things up for a while. Tuesday the 28th kicks off with a 6ft swell from the west and a stiff 25 km/h cross-off breeze from the southwest. The energy is moderate at 463, but the conditions are marginal. Wednesday the 29th drops to 4ft with a cross-shore wind – not much better. Thursday the 30th bumps up to 6ft, but it’s cross-on and choppy. This rough patch runs right through the end of the first week.
The real standout is Saturday, August 8th. The morning is the pick of the whole run. We’ve got a solid 7ft groundswell from the west with a long period of 11 seconds. That’s real energy, with a combined energy reading of 1035, and the wind is a clean cross-off from the east-southeast. This is the kind of day you call in sick for. The long period means well-spaced sets with real push. The crowds at Kilcummin Harbour can show up sometimes, but on a morning that clean, it’ll be worth it.
Since this is a reef break, that long-period swell from the west should line up nicely. The optimum swell direction is north-northwest, so we’re a bit angled, but the quality of the swell and the wind should still make for some memorable rides.
The week before that, on Tuesday, August 5th, there’s a big pulse of 12ft swell from the north-northwest, with combined energy reading 2551. That’s a lot of power, but the wind is a strong cross-off and the conditions are marginal. This one is for experts only. The swell is over 8ft, so it’s big and heavy, with a period of 10 seconds. If you’re not comfortable in big, powerful reef surf, sit that one out.
After the 8th, it fades. Small waves and onshore winds take over for the rest of the second week. The morning of Friday, August 7th, has a tiny 3ft swell and light winds, but it’s just not enough.
So, to wrap it up: the first week is a write-off. The second week has two key moments – the big, heavy, expert-only swell on the 5th, and the cleaner, more manageable long-period swell on the morning of the 8th. That Saturday is your best bet.
Rusty.
Short Range ForecastModerate rain (total 14mm), heaviest on Tue night. Very mild (max 18°C on Tue morning, min 12°C on Wed night). Winds increasing (calm on Tue night, fresh winds from the WNW by Wed night). | Days 4-6 Weather SummaryMostly dry. Warm (max 21°C on Sun afternoon, min 11°C on Sat night). Winds increasing (calm on Sat night, fresh winds from the SE by Sun night). | ||||||||||||||||||||
Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | W 8 | W 8 | W 8 | WNW 8 | WNW 8 | N 9 | WNW 8 | N 9 | W 6 | W 7 | W 7 | WNW 7 | WNW 8 | NW 8 | NW 8 | NW 8 | NW 7 | N 9 | N 8 | N 9 | N 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 382 | 377 | 347 | 229 | 178 | 176 | 385 | 270 | 190 | 274 | 208 | 270 | 347 | 428 | 239 | 111 | 77 | 43 | 66 | 137 | 192 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross | cross | cross-off | cross-on | cross | cross-off | cross-off | cross | cross | cross | cross-on | glassy | cross-off | cross-off | cross-off | cross-off | off | off |
High Tide | 6:18PM3.16m | 6:33AM2.83m | 6:52PM3.32m | 7:06AM2.91m | 7:25PM3.44m | 7:39AM2.96m | 7:56PM3.50m | 8:12AM2.97m | 8:28PM3.50m | 8:46AM2.96m | 9:00PM3.43m | 9:21AM2.91m | 9:35PM3.31m | ||||||||
Low Tide | 11:53AM0.62m | 00:29AM0.59m | 12:27PM0.47m | 1:03AM0.48m | 12:59PM0.37m | 1:36AM0.39m | 1:30PM0.32m | 2:07AM0.34m | 2:02PM0.32m | 2:39AM0.33m | 2:34PM0.38m | 3:12AM0.36m | 3:09PM0.48m | 3:47AM0.44m | |||||||
 |  |  | |  |  | |  |  | | | | | |  |  | | | | | | |
 | 5:41 | — | — | 5:41 | — | — | 5:43 | — | — | 5:46 | — | — | 5:48 | — | — | 5:48 | — | — | 5:50 | — | — |
 | — | — | 9:44 | — | — | 9:42 | — | — | 9:39 | — | — | 9:38 | — | — | 9:37 | — | — | 9:35 | — | — | 9:32 |
mm | 1 | 1 | 7 | 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — |
Temp °C | 18 | 18 | 16 | 14 | 17 | 14 | 15 | 15 | 13 | 15 | 16 | 13 | 15 | 15 | 13 | 18 | 21 | 18 | 17 | 20 | 14 |
Feels °C | 15 | 15 | 14 | 12 | 13 | 11 | 10 | 9 | 9 | 9 | 10 | 9 | 11 | 11 | 12 | 15 | 18 | 16 | 14 | 18 | 12 |
Swell 1 Height (m) Direction Period (s) | N 9 | N 9 | W 8 | WNW 8 | WNW 8 | N 9 | N 9 | WNW 7 | N 8 | N 8 | N 8 | N 8 | N 8 | NW 8 | NW 8 | NW 8 | NW 7 | NW 7 | N 8 | N 9 | N 10 |
| kJ | 81 | 80 | 347 | 229 | 178 | 176 | 287 | 181 | 86 | 65 | 46 | 30 | 31 | 428 | 239 | 111 | 77 | 43 | 66 | 137 | 192 |
Swell 2 Height (m) Direction Period (s) | — | — | N 9 | N 9 | N 9 | — | — | N 9 | — | W 12 | W 11 | — | WSW 9 | N 8 | N 8 | N 8 | N 8 | N 9 | NW 7 | NW 7 | WSW 10 |
| kJ | — | — | 58 | 58 | 40 | — | — | 270 | — | 3 | 2 | — | 16 | 29 | 28 | 29 | 18 | 36 | 16 | 7 | 9 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | NNW 12 | — | — | — | — | — | — | — | — | WSW 9 | WSW 8 | WSW 8 | WSW 10 | SW 9 | W 11 | W 10 | NW 9 |
| kJ | — | — | — | — | 27 | — | — | — | — | — | — | — | — | 26 | 14 | 7 | 9 | 13 | 9 | 8 | 3 |
Wind waves Height (m) Direction Period (s) | W 8 | W 8 | — | — | — | W 7 | WNW 8 | — | W 6 | W 7 | W 7 | WNW 7 | WNW 8 | — | — | — | SE 2 | ESE 3 | ESE 4 | SE 4 | NW 3 |
| kJ | 382 | 377 | — | — | — | 156 | 385 | — | 190 | 274 | 208 | 270 | 347 | — | — | — | 1 | 5 | 23 | 12 | 6 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 2 | 2 | 0 | 2 | 31 | 2 | 531 | 769 | 2 | 235 | 574 | 550 | 530 | 531 | 0 | 10 | 0 | 10 | 116 | 0 | 0 |
Best forecast wave conditions in Mayo and Achill Island | |||||||||||||||||||||
Best forecast wave conditions in Ireland | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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.
Nearest