Surf Forecasts:
Kilcummin Harbour surf forecast from 5 Jul 2026:
- Best quality surf: Tuesday 7 Jul, 10PM (local time) - 5ft (1.6m), 9s period, W swell with cross-offshore winds.
- Most powerful swell: Tuesday 7 Jul, 1PM (local time) - 5.5ft (1.7m), 9s period, W swell with 450 kJ wave energy.
- Next surfable swell (1★+): Tuesday 7 Jul, 10PM (local time) - 5ft (1.6m), 9s 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 Tuesday (Jul 07) at 10PM. The primary swell is predicted to be 1.6m and 9s period with a secondary swell of 0.1m 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 1.7m 9s and forecast to arrive on Tuesday (Jul 07) 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+) | 10PM (Tue 7th Jul) | 5ft (1.6m) 9s |
| Best Surf | 10PM (Tue 7th Jul) | 5ft (1.6m) 9s |
| Most Powerful | 1PM (Tue 7th Jul) | 5.5ft (1.7m) 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. Let’s break down what we’ve got coming up.
First thing – it’s been a slow start. The wind’s been messy, the swell’s there but not lining up right, and the water temp’s about 59°F, which is normal for this time of year.
The first real opportunity hits on Wednesday the 8th. Morning brings a light offshore breeze from the south, with swell at 5ft from the west, period 9 seconds, and combined energy of 330. That’s a solid, clean start.
Then Wednesday afternoon goes glassy – wind from the WNW at just 3 mph, swell drops a bit to 4ft from the west, same 9-second period (280 energy). That’s the kind of smooth you want for Kilcummin Harbour on the reef.
Thursday the 9th keeps it going. Morning offshore from the south, swell 4ft west at 9 seconds (272), and afternoon glassy again with a north breeze at 3 mph, same swell (263). Both sessions are clean and fun.
After that, it turns ugly. From Friday the 10th, the wind swings onshore, the swell shrinks, and the energy numbers drop into double digits. Poor conditions stick around for over a week. There’s a tiny window on Tuesday the 14th morning with clean cross-off wind from the southeast, but the swell is only 3ft from the west at 10 seconds (129). Surfable, but barely.
Then Friday the 17th sees a big pulse – 7ft from the west at 11 seconds, with a massive energy reading of 1147. But with the wind howling cross-onshore at 18 mph, it’ll be a lumpy, choppy mess. That one’s for the kite crew, not paddle surfing.
So your best shots are Wednesday the 8th and Thursday the 9th – clean, glassy, waist-high west swell. After that, it’s a long wait with nothing worth chasing. Forecasts can flip though, so don’t give up hope.
Rusty.
Short Range ForecastMostly dry. Warm (max 20°C on Tue morning, min 14°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 21°C on Wed morning, min 12°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Sunday 5 | Monday 6 | Tuesday 7 | Wednesday 8 | Thursday 9 | Friday 10 | Saturday 11 | |||||||||||||||
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 8 | W 8 | W 8 | W 8 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 8 | W 10 | W 10 | WNW 10 | WNW 9 | WNW 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 430 | 421 | 373 | 382 | 347 | 346 | 421 | 450 | 356 | 325 | 276 | 230 | 268 | 262 | 185 | 111 | 200 | 267 | 322 | 243 | 122 |
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 | off | glassy | off | off | glassy | glassy | cross-on | on | on | on | on | on |
High Tide | 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 | 3:49PM2.90m | |||||||||
Low Tide | 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 | 9:24AM0.64m | 9:59PM0.71m | ||||||||
 | |  | |  | | | |  | | | |  | | | | | | | | | |
 | 5:09 | — | — | 5:11 | — | — | 5:11 | — | — | 5:13 | — | — | 5:13 | — | — | 5:15 | — | — | 5:16 | — | — |
 | — | — | 10:10 | — | — | 10:10 | — | — | 10:09 | — | — | 10:08 | — | — | 10:08 | — | — | 10:07 | — | — | 10:07 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 17 | 15 | 17 | 18 | 15 | 20 | 20 | 17 | 21 | 21 | 18 | 21 | 21 | 17 | 16 | 13 | 13 | 13 | 13 | 12 |
Feels °C | 12 | 13 | 12 | 15 | 15 | 13 | 16 | 16 | 16 | 22 | 20 | 18 | 21 | 22 | 18 | 15 | 10 | 9 | 8 | 8 | 8 |
Swell 1 Height (m) Direction Period (s) | — | — | — | W 8 | N 9 | N 9 | N 8 | N 8 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 9 | W 8 | W 10 | W 10 | WNW 10 | WNW 9 | WNW 8 |
| kJ | — | — | — | 382 | 2 | 7 | 5 | 5 | 356 | 325 | 276 | 230 | 268 | 262 | 185 | 111 | 200 | 267 | 322 | 243 | 122 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | N 9 | N 9 | N 8 | — | N 8 | N 8 | N 7 | N 7 | N 7 | N 7 | N 11 | WNW 12 | N 9 | — | — | — | N 8 |
| kJ | — | — | — | — | 2 | 7 | 5 | — | 6 | 5 | 4 | 4 | 4 | 1 | 2 | 26 | 7 | — | — | — | 1 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | N 6 | N 10 | W 5 | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 2 | 4 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | W 9 | W 9 | W 8 | — | W 8 | W 8 | W 9 | W 9 | — | — | — | — | — | — | — | N 6 | NNW 4 | N 4 | N 4 | NNE 4 | NNE 4 |
| kJ | 430 | 421 | 373 | — | 347 | 346 | 421 | 450 | — | — | — | — | — | — | — | 1 | 25 | 28 | 22 | 17 | 12 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 31 | 233 | 2 | 2 | 233 | 2 | 2 | 245 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 151 | 416 | 151 | 451 | 451 | 67 |
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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