Surf Forecasts:
Kilcummin Harbour surf forecast from 19 Jul 2026:
- Best quality surf: Monday 27 Jul, 1AM (local time) - 7ft (2.1m), 9s period, WNW swell with cross-offshore winds.
- Most powerful swell: Saturday 25 Jul, 1PM (local time) - 7ft (2.1m), 11s period, NW swell with 972 kJ wave energy.
- Next surfable swell (1★+): Friday 24 Jul, 7AM (local time) - 4ft (1.2m), 10s 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 7AM. The primary swell is predicted to be 1.2m and 10s 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 2.1m 11s and forecast to arrive on Saturday (Jul 25) at 1PM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (IST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Fri 24th Jul) | 4ft (1.2m) 10s |
| Best Surf | 1AM (Mon 27th Jul) | 7ft (2.1m) 9s |
| Most Powerful | 1PM (Sat 25th Jul) | 7ft (2.1m) 11s |
Table - best surf conditions forecast for Kilcummin Harbour over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s have a look at what’s on offer.
Well, to be honest, the first week and a half is a real struggle. We’ve got a gap of nothing good from now until the morning of Monday the 27th of July. The wind is mostly onshore or cross-onshore, and the swell is small and weak. The water is sitting at 63° which is a fair bit warmer than usual for this time of year – nice for a paddle, but it doesn’t make up for the surf.
The first real standout, and just about the only one, is Kilcummin Harbour on Monday the 27th of July. The morning session is the pick. We’re looking at a solid 8 ft swell from the WNW with a period of 10 seconds, and the wind is a gentle cross-offshore breeze from the SW. That’s clean, no doubt about it. The combined energy is pumping at 1098 (moderate-to-strong energy), so there’s some grunt behind it. This is intermediate to advanced territory – 8 ft is a bit much for beginners. The swell direction is a near-perfect match for the optimum NNW, so it’s got some shape. Crowds are listed as “sometimes,” so you might have a few others out, but it won’t be a circus.
The afternoon on the 27th is still decent: 8 ft, clean, but with a bit more wind and a slightly lower score. Still a good option if you can’t make the morning.
After that, Tuesday the 28th of July blows up – 15 ft of WNW swell, but the wind is a strong 25 mph cross-shore. That’s a messy, gnarly mess. Only for the absolute experts, and even then, it’s not going to be pretty. The energy is massive at 5250, but the quality is shot. The rest of the week into early August is a write-off: onshore winds, chop, and poor conditions.
So, bottom line: if you’ve got a window, point your board at Kilcummin Harbour on the morning of Monday the 27th. That’s the one. The rest of the 16 days, you’re better off waiting for the next forecast.
Rusty.
Short Range ForecastMostly dry. Very mild (max 13°C on Sun afternoon, min 11°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Very mild (max 17°C on Fri morning, min 13°C on Wed night). Wind will be generally light. | |||||||||||||||||||
Sun 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | ||||||||||||||
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 | W 11 | W 11 | W 10 | NNW 7 | NNW 6 | NNW 7 | NNW 6 | NNW 7 | NNW 7 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | WNW 9 | WNW 8 | WNW 8 | WNW 11 | NW 10 | WNW 10 |
Wave Graph  | ||||||||||||||||||||
 kJ | 79 | 61 | 82 | 78 | 82 | 70 | 73 | 66 | 73 | 58 | 41 | 22 | 21 | 22 | 282 | 228 | 196 | 814 | 953 | 804 |
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 | cross-on | on | on | cross | cross | cross-on | cross | cross | cross | cross-off |
High Tide | 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 | 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 | ||||||||
 |  | | | |  |  | | | | | | |  | | |  | | | | |
 | — | — | 5:28 | — | — | 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 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 13 | 14 | 14 | 15 | 16 | 14 | 17 | 17 | 14 | 14 | 16 | 15 |
Feels °C | 10 | 11 | 10 | 9 | 10 | 8 | 9 | 10 | 10 | 11 | 13 | 14 | 15 | 13 | 14 | 13 | 11 | 10 | 14 | 13 |
Swell 1 Height (m) Direction Period (s) | WNW 12 | W 11 | W 11 | W 10 | W 10 | W 10 | W 9 | W 9 | W 9 | W 9 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | WNW 9 | — | — | — | NW 10 | WNW 10 |
| kJ | 47 | 61 | 82 | 78 | 69 | 47 | 42 | 27 | 26 | 25 | 41 | 22 | 21 | 22 | 282 | — | — | — | 953 | 804 |
Swell 2 Height (m) Direction Period (s) | W 8 | W 19 | — | NNW 8 | W 18 | — | — | — | — | — | W 9 | W 8 | W 8 | W 8 | — | — | — | — | — | — |
| kJ | 13 | 7 | — | 14 | 6 | — | — | — | — | — | 24 | 12 | 12 | 12 | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | WNW 12 | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | 14 | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NNW 7 | NNW 6 | NNW 5 | NNW 6 | NNW 7 | NNW 6 | NNW 7 | NNW 6 | NNW 7 | NNW 7 | — | — | — | — | — | WNW 8 | WNW 8 | WNW 11 | — | — |
| kJ | 79 | 41 | 33 | 48 | 82 | 70 | 73 | 66 | 73 | 58 | — | — | — | — | — | 228 | 196 | 814 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 303 | 55 | 244 | 524 | 55 | 256 | 534 | 201 | 201 | 148 | 201 | 171 | 524 | 117 | 2 | 1266 | 256 | 899 | 550 | 1195 |
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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