Surf Forecasts:
Kilcummin Harbour surf forecast from 25 Jul 2026:
- Best quality surf: Monday 27 Jul, 7AM (local time) - 7ft (2.2m), 10s period, WNW swell with cross-offshore winds.
- Most powerful swell: Sunday 26 Jul, 1PM (local time) - 10ft (3.0m), 10s period, WNW swell with 1,993 kJ wave energy.
- Next surfable swell (1★+): Monday 27 Jul, 7AM (local time) - 7ft (2.2m), 10s period with WNW 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 Monday (Jul 27) at 7AM. The primary swell is predicted to be 2.2m and 10s period with a secondary swell of 0.9m and 10s. 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 10s and forecast to arrive on Sunday (Jul 26) at 1PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Friday (Jul 31) at 10AM.
| Wave Type | Time (IST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Mon 27th Jul) | 7ft (2.2m) 10s |
| Best Surf | 7AM (Mon 27th Jul) | 7ft (2.2m) 10s |
| Most Powerful | 1PM (Sun 26th Jul) | 10ft (3.0m) 10s |
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 coming our way.
The pattern for this stretch is a bit of a mixed bag. We've got a solid pulse of swell early on, but the wind is going to be a major player, making things tricky. The real standout, the only time I'd really be getting excited, is a window around Tuesday and Wednesday next week.
Saturday 25th July kicks off with a decent 10ft swell from the WNW, loading up a massive 1908 of energy. But don't get too hyped yet. The wind is a cross-shore, 12 mph, and it's going to be lumpy. The water temperature is 61°F, which is a touch warmer than normal for this time of year. The conditions are just too messy for a good session.
Sunday 26th is a write-off. The swell is still a solid 10ft, but the wind is up to 18-22 mph and cross-on. It's going to be a washing machine. Leave the board at home.
The real turnaround starts Monday 27th July. The swell drops to a more manageable 7ft, but the key is the wind. We get a clean cross-off breeze. The energy is still a moderate 986. This is where the surf starts to look better.
Tuesday 28th July is your best bet of the whole forecast. The morning has a clean 5ft swell with cross-off wind, but the afternoon is the magic window. The wind swings to a true offshore breeze from the South at 9 mph, grooming a 4ft wave from the West. The energy is 338. This is going to be clean, glassy, and fun. For a reef break, this is about as good as it gets with these conditions.
Wednesday 29th July morning holds the quality. We've got a 4ft swell with a moderate offshore wind from the South. It's clean, it's rideable, and the energy is low at 237, but the shape should be good. The afternoon sees the wind swing cross-off, making it less perfect.
After that, things get patchy. The surf picks up again around Friday 31st July with a clean 5ft to 6ft swell, but it's nothing special. Then from Saturday 1st August through the middle of the following week, we hit a flat spell with very little energy. Monday 3rd August sees the energy drop to just 96, and it stays low for a few days.
The end of the forecast window, around Saturday 8th and Sunday 9th August, shows another big pulse of swell – 10ft with 2020 of energy – but it's going to be blown out by strong cross and cross-on winds. That kind of size and wind is a mess. For a reef break, that's a no-go.
So, the takeaway: Tuesday 28th July afternoon is the one. The offshore wind will make Kilcummin Harbour a dream. It's small enough for a fun session, but the quality will be there. It's a fairly consistent spot, but keep an eye on the tide. After that, the forecast is a long wait for the next decent window.
Rusty.
Short Range ForecastModerate rain (total 10mm), heaviest on Mon morning. Very mild (max 18°C on Tue morning, min 14°C on Sat night). Mainly fresh winds. | Days 5-7 Weather SummaryLight rain (total 3mm), mostly falling on Tue afternoon. Warm (max 20°C on Wed morning, min 11°C on Thu night). Wind will be generally light. | |||||||||||||||||||
Sat 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | ||||||||||||||
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) | WNW 11 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | W 9 | W 8 | W 8 | W 8 | W 8 | W 8 | W 7 | W 8 | W 8 | WNW 8 | WNW 8 | W 8 | WNW 8 |
Wave Graph  | ||||||||||||||||||||
 kJ | 1908 | 1582 | 1913 | 1980 | 1288 | 821 | 631 | 421 | 354 | 234 | 217 | 152 | 173 | 186 | 323 | 539 | 603 | 509 | 294 | 207 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross-on | cross-off | cross-off | cross-off | off | cross-off | off | off | off | cross-off | cross | cross | cross | cross-off | cross-off | cross-off | cross-off |
High Tide | 4:07PM2.60m | 4:31AM2.46m | 4:59PM2.78m | 5:18AM2.59m | 5:41PM2.97m | 5:57AM2.72m | 6:18PM3.16m | 6:33AM2.83m | 6:52PM3.32m | 7:06AM2.91m | 7:25PM3.44m | 7:39AM2.96m | 7:56PM3.50m | |||||||
Low Tide | 10:24PM1.06m | 10:32AM0.94m | 11:12PM0.90m | 11:15AM0.78m | 11:52PM0.74m | 11:53AM0.62m | 00:29AM0.59m | 12:27PM0.47m | 1:03AM0.48m | 12:59PM0.37m | 1:36AM0.39m | 1:30PM0.32m | 2:07AM0.34m | |||||||
 |  |  | |  | | |  | | | |  | | | |  |  | | |  | |
 | — | — | 5:37 | — | — | 5:39 | — | — | 5:41 | — | — | 5:41 | — | — | 5:43 | — | — | 5:46 | — | — |
 | — | 9:49 | — | — | 9:46 | — | — | 9:45 | — | — | 9:44 | — | — | 9:42 | — | — | 9:39 | — | — | 9:38 |
mm | 1 | 1 | — | — | — | 3 | 1 | 4 | — | 1 | — | — | 1 | 1 | — | — | — | — | 1 | 7 |
Temp °C | 16 | 16 | 15 | 15 | 15 | 16 | 16 | 17 | 18 | 19 | 18 | 20 | 20 | 14 | 15 | 16 | 13 | 16 | 15 | 11 |
Feels °C | 14 | 12 | 9 | 9 | 12 | 15 | 15 | 16 | 15 | 18 | 17 | 16 | 17 | 12 | 11 | 10 | 10 | 13 | 12 | 9 |
Swell 1 Height (m) Direction Period (s) | WNW 11 | — | — | N 9 | WNW 10 | WNW 10 | WNW 10 | W 9 | N 9 | W 8 | W 8 | W 8 | W 8 | N 9 | N 9 | N 8 | N 8 | WNW 8 | W 8 | WNW 8 |
| kJ | 1908 | — | — | 16 | 1288 | 821 | 631 | 421 | 109 | 234 | 217 | 152 | 173 | 41 | 25 | 12 | 12 | 509 | 294 | 207 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | N 9 | N 10 | N 10 | N 10 | N 9 | N 9 | N 9 | N 9 | N 9 | — | — | NNW 11 | NNW 9 | N 8 | NNW 10 | N 8 |
| kJ | — | — | — | — | 132 | 165 | 159 | 153 | 83 | 104 | 106 | 85 | 60 | — | — | 11 | 16 | 5 | 9 | 12 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | N 9 | N 8 | N 8 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 6 | 5 | 1 |
Wind waves Height (m) Direction Period (s) | — | WNW 10 | WNW 10 | WNW 10 | — | — | — | — | W 8 | — | — | SSE 3 | — | W 7 | W 8 | W 8 | WNW 8 | SSW 3 | — | — |
| kJ | — | 1582 | 1913 | 1980 | — | — | — | — | 354 | — | — | 1 | — | 186 | 323 | 539 | 603 | 3 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 233 | 256 | 451 | 730 | 233 | 2 | 2 | 0 | 2 | 0 | 0 | 0 | 2 | 171 | 297 | 605 | 0 | 2 | 0 | 0 |
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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