Surf Forecasts:
Kilcummin Harbour surf forecast from 19 Jul 2026:
- Best quality surf: Saturday 25 Jul, 1AM (local time) - 7.5ft (2.3m), 12s period, NW swell with cross-offshore winds.
- Most powerful swell: Saturday 25 Jul, 1AM (local time) - 7.5ft (2.3m), 12s period, NW swell with 1,398 kJ wave energy.
- Next surfable swell (1★+): Friday 24 Jul, 4AM (local time) - 2ft (0.6m), 11s period with NW 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 Friday (Jul 24) at 4AM. The primary swell is predicted to be 0.6m and 11s period with a secondary swell of 0.9m and 6s. 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 2.3m 12s and forecast to arrive on Saturday (Jul 25) at 1AM. Winds are predicted to be cross-offshore at the time the swell arrives.
| Wave Type | Time (IST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Fri 24th Jul) | 2ft (0.6m) 11s |
| Best Surf | 1AM (Sat 25th Jul) | 7.5ft (2.3m) 12s |
| Most Powerful | 1AM (Sat 25th Jul) | 7.5ft (2.3m) 12s |
Table - best surf conditions forecast for Kilcummin Harbour over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s on the table for the next couple of weeks.
We’re staring down a long, quiet stretch to kick things off. The first solid session isn't on the cards until Friday the 24th of July, so we’ve got a gap of several days with nothing worthwhile. The water is sitting at 63°F which is much warmer than usual for this time of year, so that’s a nice bonus if you’re keen for a paddle even if the waves are rubbish.
The one true standout in this whole window is Kilcummin Harbour on Friday morning the 24th of July. It’s a reef setup, exposed to the NNW, and we’ve got a 5ft swell rolling in from the WNW with a 9-second period. The combined swell energy is a solid moderate 378. What really makes it special is the wind: glassy, dead calm. That’s a major positive for clean surf. The wave comment says “expect good surf conditions”, and it’s the best we’ll see for a while. Crowds are sometimes an issue here, so keep that in mind.
After that, things get messy. Saturday the 25th shows a bigger 7ft swell from the WNW with a long 11-second period, pushing the combined energy to a strong 1176. But it’s accompanied by light rain, and while the wind is cross-offshore and clean, the forecast is marginal with questionable tide. That’s a big iffy one, and the swell is getting up there for beginners.
The rest of the window is a write-off for decent surf. Strong cross-onshore winds and choppy conditions dominate from Sunday the 26th right through to the end of the month. The swell gets huge on Monday the 27th with 10ft and combined energy over 1400, but with a fresh cross-onshore and lumpy mess, that’s only for the brave or the kite surfers. The setup looks more interesting for kite surfing than paddle surfing on those days.
There’s a flicker of hope on Friday the 31st of July with a 5ft WNW swell, light offshore winds, and clean conditions, but it’s not a standout compared to the 24th. And then it’s back to poor conditions as we head into August.
So, for the whole 16-day run, the best on offer is that glassy Friday morning on the 24th. Don’t hold your breath for the rest.
Rusty.
Short Range ForecastMostly dry. Very mild (max 14°C on Sun night, min 11°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 18°C on Fri afternoon, min 13°C on Wed morning). Wind will be generally light. | ||||||||||||||||||||
Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | |||||||||||||||
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) | NNW 7 | NNW 7 | W 11 | W 11 | W 10 | N 7 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NW 6 | NW 6 | WNW 9 | WNW 8 | NW 12 | WNW 11 | WNW 11 | WNW 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 121 | 57 | 61 | 82 | 78 | 92 | 70 | 55 | 51 | 50 | 41 | 44 | 44 | 38 | 51 | 378 | 293 | 1398 | 1176 | 974 | 866 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | on | on | on | on | on | on | on | on | cross-on | on | cross-on | glassy | cross-on | cross-off | cross-off | cross-off | cross-on |
High Tide | 10:07AM2.88m | 10:24PM3.39m | 10:54AM2.73m | 11:10PM3.07m | 11:44AM2.59m | 00:01AM2.76m | 12:41PM2.49m | 1:02AM2.51m | 1:49PM2.44m | 2:15AM2.38m | 3:03PM2.48m | 3:30AM2.37m | 4:07PM2.60m | ||||||||
Low Tide | 3:52PM0.48m | 4:42AM0.50m | 4:40PM0.72m | 5:28AM0.73m | 5:34PM0.95m | 6:21AM0.94m | 6:41PM1.14m | 7:23AM1.08m | 8:03PM1.23m | 8:34AM1.13m | 9:22PM1.18m | 9:39AM1.07m | 10:24PM1.06m | ||||||||
 | |  | | | |  | | | | |  | | |  | | | |  | | | |
 | 5:26 | — | — | 5:28 | — | — | 5:30 | — | — | 5:31 | — | — | 5:33 | — | — | 5:33 | — | — | 5:35 | — | — |
 | — | — | 9:58 | — | — | 9:55 | — | — | 9:54 | — | — | 9:52 | — | — | 9:52 | — | — | 9:50 | — | — | 9:49 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 3 | — |
Temp °C | 13 | 13 | 14 | 13 | 13 | 13 | 13 | 13 | 12 | 14 | 15 | 13 | 15 | 15 | 14 | 17 | 18 | 14 | 14 | 14 | 15 |
Feels °C | 10 | 10 | 13 | 9 | 9 | 11 | 10 | 10 | 9 | 12 | 12 | 10 | 13 | 13 | 13 | 14 | 15 | 13 | 10 | 9 | 12 |
Swell 1 Height (m) Direction Period (s) | W 9 | NNW 7 | W 11 | W 11 | W 10 | W 10 | W 10 | W 9 | W 9 | W 9 | NNW 6 | W 9 | NNW 6 | W 8 | NW 6 | WNW 9 | NW 11 | NW 12 | WNW 11 | WNW 11 | WNW 9 |
| kJ | 13 | 57 | 61 | 82 | 78 | 69 | 47 | 42 | 27 | 26 | 41 | 24 | 44 | 12 | 51 | 378 | 174 | 1398 | 1176 | 974 | 866 |
Swell 2 Height (m) Direction Period (s) | WNW 12 | WNW 12 | W 19 | — | W 8 | W 18 | — | — | N 9 | N 8 | W 9 | — | W 8 | — | W 8 | — | — | — | — | — | — |
| kJ | 29 | 47 | 7 | — | 1 | 6 | — | — | 1 | 1 | 25 | — | 12 | — | 12 | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | W 8 | — | — | — | — | — | — | — | — | — | — | — | — | NW 12 | — | — | — | — | — | — |
| kJ | — | 13 | — | — | — | — | — | — | — | — | — | — | — | — | 35 | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NNW 7 | NE 5 | NNW 6 | NNW 5 | NNW 6 | N 7 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | — | NNW 6 | — | NW 6 | — | — | WNW 8 | — | — | — | — |
| kJ | 121 | 6 | 41 | 36 | 48 | 92 | 70 | 55 | 51 | 50 | — | 44 | — | 38 | — | — | 293 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 256 | 303 | 55 | 244 | 1255 | 55 | 201 | 1254 | 201 | 376 | 550 | 201 | 508 | 171 | 11 | 0 | 761 | 0 | 2 | 174 | 451 |
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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