Surf Forecasts:
Kilcummin Harbour surf forecast from 4 Jul 2026:
- Best quality surf: Monday 6 Jul, 4AM (local time) - 6ft (1.8m), 8s period, W swell with cross-offshore winds.
- Most powerful swell: Saturday 4 Jul, 1PM (local time) - 8ft (2.4m), 9s period, W swell with 901 kJ wave energy.
- Next surfable swell (1★+): Monday 6 Jul, 4AM (local time) - 6ft (1.8m), 8s 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 Monday (Jul 06) at 4AM. The primary swell is predicted to be 1.8m and 8s period. 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 2.4m 9s and forecast to arrive on Saturday (Jul 04) at 1PM. 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 (Mon 6th Jul) | 6ft (1.8m) 8s |
| Best Surf | 4AM (Mon 6th Jul) | 6ft (1.8m) 8s |
| Most Powerful | 1PM (Sat 4th Jul) | 8ft (2.4m) 9s |
Table - best surf conditions forecast for Kilcummin Harbour over the next 16 days.
Updates in hr min s Forecast update imminent
Alright, Rusty here with the look ahead in feet and knots for Kilcummin Harbour.
First few days are rough. Saturday the 4th kicks off with a 8ft to 8ft west swell and a stiff 16-19 knot cross-off wind. Wave energy is moderate (823-901) but the wind makes it a battle. Not a day for a cruisy session.
Sunday the 5th drops to 6ft to 6ft, but the wind is still pumping at 13-16 knots cross-off. Energy drops to 430-460, but the forecast says poor conditions. Monday the 6th through Tuesday the 7th stays waist to chest-high (5ft-6ft) with moderate winds and low scores.
Wednesday the 8th is a glimmer. A 5ft west-northwest swell, and the wind goes light offshore from the south at 6 knots. Clean, glassy. Energy is moderate (351) and the forecast is good. That’s a proper window for the reef.
Thursday the 9th keeps it small and clean: 4ft to 4ft west swell with light offshore wind. Energy low-moderate (200-240), but workable. Friday the 10th gets smaller (3ft) and ordinary.
Saturday the 11th through Monday the 13th is a total wipeout. Onshore winds, rain, and strong breezes. A solid three-day gap of no-go.
Then Tuesday the 14th. This is the real standout. A 6ft west swell, energy at 462, and a whisper-light 3 knot westerly cross-off in the morning. Clean, lined-up, and the best combination of size and wind in the whole outlook. Hit it early.
Wednesday the 15th drops to a weak 3ft west swell with cross-shore winds. Thursday the 16th has a tiny 3ft west-northwest swell with light offshore, too small to get excited. Friday the 17th through Saturday the 18th is blown out again.
Sunday the 19th throws in a 6ft west-northwest swell, but at a short 7 seconds and light cross-shore wind. Energy is moderate (398). Could be fat and closey.
Best bets: Wednesday the 8th for clean small waves, and Tuesday the 14th for the big one with offshore wind. That 14th is the winner.
Rusty.
Short Range ForecastMostly dry. Very mild (max 19°C on Mon morning, min 14°C on Fri night). Mainly fresh winds. | Days 4-6 Weather SummaryMostly dry. Warm (max 25°C on Thu afternoon, min 15°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Saturday 4 | Sunday 5 | Monday 6 | Tuesday 7 | Wednesday 8 | Thursday 9 | Friday 10 | |||||||||||||||
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 8 | W 8 | W 8 | W 8 | W 8 | W 9 | W 9 | W 9 | WNW 9 | WNW 9 | W 9 | W 9 | W 9 | W 9 | W 8 | WNW 11 | W 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 823 | 901 | 691 | 430 | 460 | 428 | 339 | 298 | 347 | 432 | 395 | 304 | 340 | 302 | 240 | 194 | 235 | 184 | 111 | 119 | 279 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | off | cross-on | off | cross-off | off | glassy | cross-off | cross-on | on |
High Tide | 9:11AM2.71m | 9:31PM3.23m | 9:50AM2.65m | 10:08PM3.15m | 10:34AM2.59m | 10:49PM3.06m | 11:25AM2.55m | 11:38PM2.95m | 12:24PM2.53m | 00:37AM2.85m | 1:31PM2.57m | 1:48AM2.81m | 2:42PM2.70m | 3:03AM2.84m | |||||||
Low Tide | 2:58PM0.57m | 3:45AM0.64m | 3:35PM0.67m | 4:25AM0.67m | 4:17PM0.79m | 5:10AM0.71m | 5:07PM0.92m | 6:03AM0.74m | 6:10PM1.01m | 7:07AM0.76m | 7:26PM1.03m | 8:16AM0.73m | 8:46PM0.92m | ||||||||
 |  |  | | |  | | |  |  | | | | | | | | | |  |  | |
 | 5:09 | — | — | 5:09 | — | — | 5:11 | — | — | 5:11 | — | — | 5:13 | — | — | 5:13 | — | — | 5:15 | — | — |
 | — | — | 10:12 | — | — | 10:10 | — | — | 10:10 | — | — | 10:09 | — | — | 10:08 | — | — | 10:08 | — | — | 10:07 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 28 |
Temp °C | 18 | 18 | 15 | 16 | 16 | 15 | 19 | 19 | 16 | 21 | 21 | 18 | 22 | 22 | 20 | 23 | 25 | 19 | 22 | 21 | 15 |
Feels °C | 13 | 13 | 12 | 13 | 11 | 11 | 16 | 15 | 14 | 18 | 18 | 17 | 21 | 21 | 20 | 22 | 24 | 18 | 22 | 20 | 13 |
Swell 1 Height (m) Direction Period (s) | — | — | — | W 9 | — | — | W 8 | N 11 | N 10 | W 9 | N 9 | W 9 | WNW 9 | WNW 9 | W 9 | W 9 | W 9 | W 9 | W 8 | WNW 11 | W 10 |
| kJ | — | — | — | 430 | — | — | 339 | 2 | 8 | 432 | 14 | 304 | 340 | 302 | 240 | 194 | 235 | 184 | 111 | 119 | 279 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | N 10 | N 8 | N 9 | N 8 | N 8 | N 8 | N 8 | N 7 | N 7 | N 7 | N 7 | W 8 | — |
| kJ | — | — | — | — | — | — | — | — | 8 | 6 | 6 | 5 | 5 | 12 | 10 | 4 | 4 | 4 | 1 | 64 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | N 10 | N 9 | — | — | N 9 | N 8 | N 11 | N 10 | N 9 | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 8 | 6 | — | — | 2 | 1 | 2 | 2 | 2 | — |
Wind waves Height (m) Direction Period (s) | W 9 | W 9 | W 9 | — | W 8 | W 8 | — | W 8 | W 8 | — | W 9 | — | — | — | — | — | — | — | — | — | NNW 5 |
| kJ | 823 | 901 | 691 | — | 460 | 428 | — | 298 | 347 | — | 395 | — | — | — | — | — | — | — | — | — | 33 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 448 | 731 | 2 | 2 | 233 | 2 | 2 | 233 | 2 | 31 | 245 | 0 | 0 | 11 | 0 | 0 | 0 | 0 | 0 | 69 | 66 |
Best forecast wave conditions in Mayo and Achill Island | |||||||||||||||||||||
Best forecast wave conditions in Ireland | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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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