Surf Forecasts:
Kilcummin Harbour surf forecast from 7 Jul 2026:
- Best quality surf: Wednesday 8 Jul, 1AM (local time) - 5ft (1.6m), 9s period, W swell with cross-offshore winds.
- Most powerful swell: Friday 10 Jul, 7AM (local time) - 4.5ft (1.4m), 11s period, W swell with 466 kJ wave energy.
- Next surfable swell (1★+): Wednesday 8 Jul, 1AM (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 Wednesday (Jul 08) at 1AM. The primary swell is predicted to be 1.6m and 9s 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 1.4m 11s and forecast to arrive on Friday (Jul 10) at 7AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 3s period and expected on Monday (Jul 13) at 1AM.
| Wave Type | Time (IST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Wed 8th Jul) | 5ft (1.6m) 9s |
| Best Surf | 1AM (Wed 8th Jul) | 5ft (1.6m) 9s |
| Most Powerful | 7AM (Fri 10th Jul) | 4.5ft (1.4m) 11s |
Table - best surf conditions forecast for Kilcummin Harbour over the next 16 days.
Alright, Rusty here. Let’s break down the next sixteen days.
It’s not a classic stretch. There’s a short, clean window early on, then a long dry spell that lasts over a week and a half. The best surf is right at the start.
The standout is Wednesday morning, July 8th, at Kilcummin Harbour. This is a reef break, so it needs the right swell direction. We’ve got a clean 1.4m west swell, with a 9-second period, and a light offshore breeze from the SSW. That’s going to give you clean, lined-up faces. The water temp is 59°F, about average for this time of year. The combined swell energy is moderate at 347. Crowds can be an issue here sometimes, but for the area, this is the session to aim for.
Thursday morning, July 9th, is also a good call. Same size, 1.4m from the west, with another light offshore wind from the SSW. Clean and rideable, with moderate energy at 319. The afternoon holds up OK, but the wind turns a bit cross-off.
Then it falls apart. Friday, July 10th, the wind turns onshore from the north and it’s all downhill. From Saturday, July 11th, all the way through to Tuesday, July 22nd, it’s mostly small, weak, and messy. There’s a huge gap with nothing worth paddling for. Wave heights barely hit 1.0m (just over 3 ft), and the combined energy drops into double digits most days.
There’s one slight glimmer on Wednesday morning, July 22nd – a 1.0m west swell, 8-second period, clean with a cross-off wind. The energy is moderate at 129, but it’s only just surfable. Nothing else in that second week is worth a mention.
Get it while you can this week, because after that it’s a long wait.
Rusty.
Short Range ForecastMostly dry. Warm (max 20°C on Tue morning, min 13°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 21°C on Sun night, min 12°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 7 | Wednesday 8 | Thursday 9 | Friday 10 | Saturday 11 | Sunday 12 | Monday 13 | |||||||||||||||
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 10 | W 9 | W 9 | W 9 | W 9 | W 10 | WNW 10 | W 10 | W 9 | WNW 8 | WNW 8 | WNW 8 | WNW 7 | WNW 7 | WNW 7 | WNW 12 | WNW 11 |
Wave Graph  | |||||||||||||||||||||
 kJ | 493 | 455 | 413 | 341 | 356 | 325 | 318 | 264 | 181 | 432 | 407 | 273 | 162 | 127 | 68 | 44 | 30 | 16 | 16 | 30 | 187 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross-off | off | cross-off | off | off | cross-off | glassy | on | on | on | cross-on | on | cross-on | cross-on | on | cross-off | cross-off | cross | cross |
High Tide | 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 | 4:14AM2.94m | 4:50PM3.16m | 5:16AM3.07m | 5:44PM3.43m | ||||||||
Low Tide | 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 | 10:25AM0.50m | 11:02PM0.46m | 11:20AM0.35m | 11:58PM0.23m | ||||||||
 | |  |  | |  |  | | | | | | | | | | | | | | | |
 | 5:11 | — | — | 5:13 | — | — | 5:13 | — | — | 5:15 | — | — | 5:16 | — | — | 5:16 | — | — | 5:18 | — | — |
 | — | — | 10:09 | — | — | 10:08 | — | — | 10:08 | — | — | 10:07 | — | — | 10:07 | — | — | 10:06 | — | — | 10:05 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 20 | 15 | 18 | 19 | 17 | 19 | 20 | 17 | 16 | 14 | 12 | 13 | 14 | 15 | 19 | 20 | 21 | 20 | 22 | 19 |
Feels °C | 17 | 17 | 14 | 17 | 17 | 16 | 18 | 19 | 18 | 16 | 11 | 8 | 8 | 9 | 11 | 18 | 18 | 22 | 18 | 19 | 16 |
Swell 1 Height (m) Direction Period (s) | N 8 | N 8 | W 9 | W 9 | W 10 | W 9 | W 9 | W 9 | W 9 | W 10 | WNW 10 | W 10 | W 9 | WNW 8 | WNW 8 | WNW 8 | WNW 7 | N 4 | WNW 7 | WNW 10 | WNW 11 |
| kJ | 5 | 5 | 413 | 341 | 356 | 325 | 318 | 264 | 181 | 432 | 407 | 273 | 162 | 127 | 68 | 44 | 30 | 10 | 16 | 19 | 187 |
Swell 2 Height (m) Direction Period (s) | N 8 | — | N 8 | N 8 | N 7 | N 7 | N 7 | N 6 | WNW 12 | N 10 | N 10 | N 10 | N 9 | — | N 9 | N 5 | N 8 | WNW 7 | NW 11 | WNW 12 | W 19 |
| kJ | 5 | — | 6 | 5 | 4 | 4 | 1 | 1 | 83 | 2 | 8 | 2 | 2 | — | 1 | 11 | 1 | 16 | 5 | 30 | 7 |
Swell 3 Height (m) Direction Period (s) | — | — | — | N 8 | — | — | — | — | N 12 | — | — | — | — | — | — | N 8 | — | W 21 | W 14 | WNW 7 | — |
| kJ | — | — | — | 1 | — | — | — | — | 3 | — | — | — | — | — | — | 1 | — | 9 | 4 | 9 | — |
Wind waves Height (m) Direction Period (s) | W 9 | W 9 | — | — | — | — | — | — | — | — | — | NNE 5 | NNE 5 | NNE 5 | NNE 5 | E 3 | NE 4 | ESE 3 | ENE 3 | NE 3 | ENE 4 |
| kJ | 493 | 455 | — | — | — | — | — | — | — | — | — | 45 | 52 | 70 | 46 | 1 | 9 | 2 | 3 | 2 | 11 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 31 | 247 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 55 | 151 | 66 | 39 | 151 | 38 | 52 | 66 | 282 | 256 | 39 | 10 |
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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