Surf Forecasts:
Kilcummin Harbour surf forecast from 7 Jul 2026:
- Best quality surf: Wednesday 8 Jul, 1AM (local time) - 5ft (1.6m), 9s period, W swell with cross-offshore winds.
- Most powerful swell: Friday 10 Jul, 10AM (local time) - 5ft (1.5m), 11s period, W swell with 525 kJ wave energy.
- Next surfable swell (1★+): Wednesday 8 Jul, 1AM (local time) - 5ft (1.6m), 9s 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 08) at 1AM. The primary swell is predicted to be 1.6m and 9s period with a secondary swell of 0.2m and 8s. 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 1.5m 11s and forecast to arrive on Friday (Jul 10) at 10AM. Winds are predicted to be onshore at the time the swell arrives.
| Wave Type | Time (IST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Wed 8th Jul) | 5ft (1.6m) 9s |
| Best Surf | 1AM (Wed 8th Jul) | 5ft (1.6m) 9s |
| Most Powerful | 10AM (Fri 10th Jul) | 5ft (1.5m) 11s |
Table - best surf conditions forecast for Kilcummin Harbour over the next 16 days.
Updates in hr min s Forecast update imminent
Alright folks, Rusty here. Let's get straight into it for the Kilcummin Harbour region.
We've got a pretty clear window of decent surf kicking off from Tuesday the 7th, and then it's looking pretty bleak for a long stretch after that.
The best of the week is definitely Wednesday the 8th and Thursday the 9th. The combined swell energy will be in the moderate range (around 346 to 312), pushing in a clean 5ft west swell. But the real winner is the wind. Both Wednesday and Thursday mornings we're looking at a light offshore breeze from the SSW, which will have Kilcummin Harbour (a reef setup) looking clean as a whistle. That's a proper standout period, perfect for an intermediate surfer. The water temp feels about average for this time of year, so nothing crazy there.
We get a little pulse of energy on Tuesday morning the 7th with a 6ft west swell and a solid 503 combined energy reading, but it's a bit of a mixed bag with a moderate cross-off breeze. It's surfable, but those Wednesday and Thursday windows are better quality.
Now, after Thursday afternoon the 9th, it all goes to custard. We're looking at a very long gap of poor or unsurfable conditions from Friday the 10th all the way through Sunday the 19th. The swell drops right off, and we get hammered with onshore winds from the north and northeast for days. Don't even bother paddling out. There's a tiny ripple of energy around Wednesday the 22nd with a 2ft west swell and clean conditions, but it's really just a whisper.
So, to sum it up: your window is Wednesday morning the 8th and Thursday morning the 9th. That's it. Get on it while it's good, because it dries up for almost two weeks after that.
Stay wet, Rusty.
Short Range ForecastMostly dry. Warm (max 22°C on Thu afternoon, min 13°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 19°C on Sun afternoon, min 12°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 7 | Wednesday 8 | Thursday 9 | Friday 10 | Saturday 11 | Sunday 12 | Monday 13 | |||||||||||||||
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 9 | W 9 | W 9 | W 9 | W 10 | W 9 | W 9 | W 9 | W 9 | W 11 | W 10 | W 10 | W 9 | WNW 9 | WNW 8 | WNW 8 | WNW 7 | NNE 5 | WNW 7 | W 13 | W 11 |
Wave Graph  | |||||||||||||||||||||
 kJ | 498 | 455 | 404 | 341 | 356 | 318 | 311 | 299 | 181 | 525 | 392 | 267 | 162 | 99 | 68 | 44 | 31 | 37 | 16 | 14 | 61 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross-off | off | cross-off | off | off | cross-off | glassy | on | on | on | on | on | cross-on | cross-on | on | cross | cross | cross | cross |
High Tide | 11:25AM2.55m | 11:38PM2.95m | 12:24PM2.53m | 00:37AM2.85m | 1:31PM2.57m | 1:48AM2.81m | 2:42PM2.70m | 3:03AM2.84m | 3:49PM2.90m | 4:14AM2.94m | 4:50PM3.16m | 5:16AM3.07m | 5:44PM3.43m | ||||||||
Low Tide | 5:10AM0.71m | 5:07PM0.92m | 6:03AM0.74m | 6:10PM1.01m | 7:07AM0.76m | 7:26PM1.03m | 8:16AM0.73m | 8:46PM0.92m | 9:24AM0.64m | 9:59PM0.71m | 10:25AM0.50m | 11:02PM0.46m | 11:20AM0.35m | 11:58PM0.23m | |||||||
 | |  |  | | | | |  |  | | | | | | | | | | | | |
 | 5:11 | — | — | 5:13 | — | — | 5:13 | — | — | 5:15 | — | — | 5:16 | — | — | 5:16 | — | — | 5:18 | — | — |
 | — | — | 10:09 | — | — | 10:08 | — | — | 10:08 | — | — | 10:07 | — | — | 10:07 | — | — | 10:06 | — | — | 10:05 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 21 | 16 | 18 | 19 | 17 | 21 | 22 | 18 | 13 | 13 | 13 | 13 | 14 | 14 | 16 | 19 | 20 | 19 | 22 | 19 |
Feels °C | 17 | 18 | 15 | 17 | 19 | 16 | 20 | 21 | 18 | 10 | 10 | 9 | 7 | 9 | 10 | 14 | 16 | 20 | 15 | 18 | 17 |
Swell 1 Height (m) Direction Period (s) | W 9 | N 8 | W 9 | W 9 | W 10 | W 9 | W 9 | W 9 | W 9 | W 11 | W 10 | W 10 | W 9 | WNW 9 | WNW 8 | N 5 | WNW 7 | NNE 5 | N 4 | WNW 7 | NNE 4 |
| kJ | 498 | 5 | 404 | 341 | 356 | 318 | 311 | 299 | 181 | 525 | 392 | 267 | 162 | 99 | 68 | 25 | 31 | 37 | 6 | 9 | 10 |
Swell 2 Height (m) Direction Period (s) | N 8 | — | N 8 | N 8 | N 7 | N 7 | N 7 | N 6 | W 12 | N 10 | — | N 10 | N 9 | — | N 8 | WNW 8 | — | WNW 7 | WNW 7 | W 13 | W 11 |
| kJ | 5 | — | 6 | 5 | 4 | 4 | 1 | 1 | 76 | 2 | — | 2 | 2 | — | 1 | 44 | — | 16 | 16 | 14 | 61 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | N 11 | N 12 | — | — | — | — | — | — | — | W 21 | W 14 | WNW 10 | WNW 9 |
| kJ | — | — | — | — | — | — | — | — | 3 | 3 | — | — | — | — | — | — | — | 9 | 4 | 9 | 26 |
Wind waves Height (m) Direction Period (s) | — | W 9 | — | — | — | — | — | — | — | — | N 4 | NNE 4 | NNE 5 | NNE 5 | NNE 5 | E 3 | N 5 | E 3 | E 3 | NNE 4 | — |
| kJ | — | 455 | — | — | — | — | — | — | — | — | 12 | 39 | 37 | 53 | 58 | 1 | 23 | 1 | 1 | 6 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 235 | 247 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 55 | 151 | 67 | 67 | 151 | 39 | 69 | 66 | 166 | 256 | 246 | 10 |
Best forecast wave conditions in Mayo and Achill Island | |||||||||||||||||||||
Best forecast wave conditions in Ireland | |||||||||||||||||||||
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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 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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