Surf Forecasts:
Kilcummin Harbour surf forecast from 27 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: Monday 27 Jul, 4AM (local time) - 7.5ft (2.3m), 10s period, WNW swell with 1,075 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 1.0m 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 2.3m 10s and forecast to arrive on Monday (Jul 27) at 4AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Sunday (Aug 02) at 7PM.
| 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 | 4AM (Mon 27th Jul) | 7.5ft (2.3m) 10s |
Table - best surf conditions forecast for Kilcummin Harbour over the next 16 days.
The Lowdown
Alright folks, Rusty here. We’ve got a bit of a slow-burner on our hands for the next couple of weeks around Kilcummin Harbour. The first real chance of a wave doesn’t roll in until Monday afternoon, the 27th, so you’ll be staring at flat or poor conditions over the weekend. It’s a bit of a waiting game, but the forecast does show a window or two.
Monday afternoon, 27 July, looks like the best we’ll see for a while. The swell is coming in from the WNW at 6ft with a 10-second period, and the water temp is sitting at a slightly warmer than average 16°. We have a gentle cross-offshore breeze from the SSW, keeping the surface clean. The combined energy is moderate at 765, so it won't be mushy. This reef break can get crowded sometimes, so keep an eye out, but for the quality on offer, it’ll be worth it. The direction is a touch west of the ideal NNW, but the conditions should make up for it.
Tuesday morning, 28 July, still has some lump around with a 7ft swell from the W (8 secs, combined energy 706), but the cross-off wind is stronger at 16 mph, making it a bit more of a challenge. The afternoon cleans up nicely with a 5ft W swell and a proper offshore wind from the SSW. That’ll be clean, but a bit smaller.
From Wednesday 29 July through to the end of the first week, it gets messy. The swell drops and the wind turns onshore or cross-shore, leaving us with small, lumpy conditions. There’s nothing worth getting excited about until we get into early August.
The second week starts with a glimmer of hope. Monday morning, 3 August, has a 4ft WSW swell (9 secs, combined energy 338) with light cross-off winds from the SSW, giving clean conditions. It’s not huge, but it’s rideable. Then Tuesday morning, 4 August, is similar: 3ft from the N (9 secs, combined energy 235) with light ESE cross-off breezes. Both are solid options for a small-wave board.
Beyond that, from the 5th onwards, it turns into a choppy, onshore mess for the rest of the period. The swell tries to build on the 7th with a 7ft W swell, but it’s short-period and straight onshore, creating poor conditions. The final week fades away to tiny, weak energy with nothing surfable.
So, overall, lock in that Monday afternoon, 27 July for the biggest, cleanest option of the run. The Monday and Tuesday mornings of the 3rd and 4th of August are decent backups for a longboard. There are a lot of blank days in there, so pick your windows wisely.
Rusty.
Short Range ForecastModerate rain (total 17mm), heaviest on Mon afternoon. Very mild (max 18°C on Mon night, min 13°C on Wed morning). Winds decreasing (fresh winds from the SW on Mon night, light winds from the WNW by Wed morning). | Days 5-7 Weather SummaryLight rain (total 2mm), mostly falling on Wed afternoon. Very mild (max 17°C on Sat morning, min 11°C on Thu night). Winds increasing (light winds from the W on Wed afternoon, fresh winds from the NW by Thu morning). | |||||||||||||||||||
Sun 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | ||||||||||||||
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 10 | WNW 10 | WNW 10 | WNW 10 | W 9 | W 8 | W 8 | W 8 | W 8 | W 8 | NNW 10 | NNW 9 | N 8 | WNW 6 | N 8 | N 8 | W 6 | WNW 7 | NW 7 | NW 8 |
Wave Graph  | ||||||||||||||||||||
 kJ | 1980 | 1422 | 748 | 567 | 471 | 625 | 347 | 260 | 181 | 124 | 125 | 123 | 86 | 207 | 147 | 127 | 88 | 211 | 211 | 188 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | cross-on | cross | cross-off | cross-off | cross-on | cross-off | cross | cross | cross | cross-off | cross-off | off |
High Tide | 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 | 8:12AM2.97m | 8:28PM3.50m | |||||||
Low Tide | 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 | 2:02PM0.32m | 2:39AM0.33m | |||||||
 |  |  | |  |  | | | | |  | |  |  | | | | |  |  | |
 | — | — | 5:39 | — | — | 5:41 | — | — | 5:41 | — | — | 5:43 | — | — | 5:46 | — | — | 5:48 | — | — |
 | — | 9:46 | — | — | 9:45 | — | — | 9:44 | — | — | 9:42 | — | — | 9:39 | — | — | 9:38 | — | — | 9:37 |
mm | — | — | 1 | 5 | 3 | 1 | 2 | 1 | 4 | 2 | — | — | — | — | — | — | — | — | — | 5 |
Temp °C | 16 | 14 | 16 | 16 | 18 | 17 | 16 | 15 | 13 | 14 | 13 | 15 | 14 | 13 | 15 | 15 | 13 | 17 | 17 | 13 |
Feels °C | 10 | 10 | 13 | 15 | 15 | 13 | 14 | 13 | 12 | 12 | 11 | 10 | 8 | 10 | 9 | 8 | 8 | 13 | 14 | 10 |
Swell 1 Height (m) Direction Period (s) | N 9 | WNW 10 | WNW 10 | WNW 10 | W 9 | W 8 | W 8 | W 8 | W 8 | W 8 | WNW 8 | NNW 9 | N 8 | N 8 | WNW 6 | N 8 | N 7 | N 8 | NW 7 | NW 8 |
| kJ | 16 | 1422 | 748 | 567 | 471 | 625 | 347 | 260 | 181 | 124 | 79 | 123 | 86 | 41 | 90 | 127 | 88 | 18 | 211 | 188 |
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 10 | W 8 | W 7 | NNW 10 | N 8 | W 11 | W 11 | W 10 | W 9 | W 9 |
| kJ | — | 132 | 206 | 198 | 153 | 81 | 58 | 57 | 80 | 80 | 125 | 55 | 39 | 35 | 147 | 2 | 9 | 8 | 15 | 25 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | N 9 | — | — | — | W 12 | — | — | — | N 7 | N 7 |
| kJ | — | — | — | — | — | — | — | — | — | — | 14 | — | — | — | 3 | — | — | — | 9 | 4 |
Wind waves Height (m) Direction Period (s) | WNW 10 | — | — | — | SSW 3 | — | — | — | SSW 3 | — | — | — | NW 4 | WNW 6 | — | W 6 | W 6 | WNW 7 | — | — |
| kJ | 1980 | — | — | — | 6 | — | — | — | 2 | — | — | — | 6 | 207 | — | 60 | 85 | 211 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 730 | 70 | 31 | 0 | 2 | 235 | 0 | 0 | 67 | 2 | 0 | 148 | 593 | 0 | 148 | 587 | 531 | 226 | 226 | 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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