
Surf Forecasts:
Kilcummin Harbour surf forecast from 31 Jul 2026:
- Best quality surf: Sunday 2 Aug, 1AM (local time) - 3.5ft (1.0m), 7s period, NW swell with glassy winds.
- Most powerful swell: Wednesday 5 Aug, 1PM (local time) - 5ft (1.5m), 8s period, N swell with 294 kJ wave energy.
- Next surfable swell (1★+): Saturday 1 Aug, 1AM (local time) - 3.5ft (1.1m), 7s 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 Saturday (Aug 01) at 1AM. The primary swell is predicted to be 1.1m and 7s period with a secondary swell of 0.5m and 8s. Another secondary swell of 0.2m and 10s is also forecast. 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 1.5m 8s and forecast to arrive on Wednesday (Aug 05) at 1PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 2s period and expected on Monday (Aug 03) at 4AM.
| Wave Type | Time (IST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Sat 1st Aug) | 3.5ft (1.1m) 7s |
| Best Surf | 1AM (Sun 2nd Aug) | 3.5ft (1.0m) 7s |
| Most Powerful | 1PM (Wed 5th Aug) | 5ft (1.5m) 8s |
Table - best surf conditions forecast for Kilcummin Harbour over the next 16 days.
The Lowdown
G'day, Rusty here. Let's take a look at what's shaking at Kilcummin Harbour. It's a reef break, so it's got a bit of character, but it's a slow burn to start.
The water is sitting at 61°F, which is a touch warmer than normal for this time of year, so that's a small blessing.
Honestly, the first week is a bit of a write-off. We've got a gap from the start all the way through to the morning of Sunday, August 2nd. That's a few days of staring at flat, choppy water. The swell is there, but it's small and messy, with mostly cross-shore winds and the combined energy is weak (192). Not worth putting the wetsuit on.
Then, on Sunday morning, August 2nd, things finally perk up. We get a 3ft pulse from the north with a 9-second period. The wind swings light from the southeast, giving us a clean cross-off breeze. The combined energy hits a moderate 270. It's not big, but it's clean. The afternoon keeps that same vibe with a light ESE wind.
Monday the 3rd and Tuesday the 4th have some small waves, but the wind gets messy again. Tuesday morning is actually glassy with a 3ft north swell, but at 9 seconds, it's a bit short-period and the energy is only 136. It's surfable, but nothing to write home about.
The next real standout doesn't come until Sunday, August 9th. Now we're cooking. The morning brings a 5ft northwest swell, 9-second period, and a light cross-off breeze from the southeast. The combined energy is a strong 420. The afternoon is even better – a solid 7ft northwest swell, still 9 seconds, but the wind goes offshore from the south. That's a gentle offshore breeze, meaning clean, lined-up waves. Combined energy is a hefty 805. This is the session to be chasing. The swell is over 5ft, so it's getting a bit much for beginners, but for any experienced surfer, this is the one. The northwest swell is exactly what this spot wants.
The following Monday and Tuesday keep that offshore wind flow, but the swell drops back. Monday morning still has a decent 5ft pulse with an offshore breeze, so it's clean, but the energy is down to 286. It's still a good option for a quieter session.
After that, the long-range forecast for the second week is pretty quiet. The swell drops right off, and the wind is more cross or onshore. August 15th shows a 6ft windswell, but it's only 6-7 seconds, choppy, and onshore. No good.
So, the one true standout is the afternoon of Sunday, August 9th. Mark it down. The morning of that same day is also very good. For a quieter, cleaner option, the morning of Monday, August 10th, is worth a look.
Rusty out.
Short Range ForecastModerate rain (total 11mm), heaviest on Sun night. Very mild (max 16°C on Sat morning, min 12°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 8mm), mostly falling on Mon afternoon. Very mild (max 16°C on Mon night, min 13°C on Mon morning). Mainly fresh winds. | ||||||||||||||||||||
Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | |||||||||||||||
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 7 | W 7 | WNW 7 | WNW 6 | WNW 6 | NW 7 | N 9 | N 9 | N 9 | N 9 | N 9 | N 10 | N 9 | N 9 | N 8 | NNW 8 | N 8 | N 7 | NNE 6 | W 10 | W 9 |
Wave Graph | |||||||||||||||||||||
134 | 134 | 114 | 114 | 113 | 107 | 137 | 109 | 99 | 93 | 132 | 146 | 106 | 229 | 286 | 251 | 286 | 226 | 58 | 17 | 16 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-off | cross | cross | glassy | cross-off | cross-off | cross | cross | cross-on | cross-off | glassy | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross |
High Tide | 7:56PM3.50m | 8:12AM2.97m | 8:28PM3.50m | 8:46AM2.96m | 9:00PM3.43m | 9:21AM2.91m | 9:35PM3.31m | 10:00AM2.84m | 10:14PM3.15m | 10:46AM2.74m | 11:02PM2.95m | 11:42AM2.63m | 00:04AM2.74m | ||||||||
Low Tide | 1:30PM0.32m | 2:07AM0.34m | 2:02PM0.32m | 2:39AM0.33m | 2:34PM0.38m | 3:12AM0.36m | 3:09PM0.48m | 3:47AM0.44m | 3:48PM0.62m | 4:28AM0.56m | 4:35PM0.79m | 5:18AM0.72m | 5:36PM0.95m | ||||||||
5:46 | — | — | 5:48 | — | — | 5:48 | — | — | 5:50 | — | — | 5:52 | — | — | 5:54 | — | — | 5:56 | — | — | |
— | — | 9:38 | — | — | 9:37 | — | — | 9:35 | — | — | 9:32 | — | — | 9:30 | — | — | 9:29 | — | — | 9:27 | |
mm | — | — | — | — | — | — | — | 2 | 9 | — | 4 | 1 | 3 | — | — | — | — | — | — | — | — |
Temp °C | 15 | 15 | 13 | 16 | 16 | 14 | 14 | 14 | 14 | 14 | 15 | 16 | 15 | 15 | 14 | 14 | 14 | 14 | 15 | 15 | 14 |
Feels °C | 9 | 9 | 10 | 12 | 13 | 13 | 12 | 13 | 12 | 12 | 13 | 15 | 16 | 12 | 9 | 8 | 9 | 10 | 11 | 11 | 12 |
Swell 1 Height (m) Direction Period (s) | N 8 | N 8 | N 8 | N 8 | WSW 9 | NW 7 | NW 8 | NW 8 | N 9 | N 9 | N 9 | N 10 | N 9 | W 11 | W 10 | NNW 8 | W 11 | W 10 | NW 5 | NW 5 | W 9 |
55 | 45 | 29 | 18 | 25 | 107 | 126 | 109 | 99 | 93 | 132 | 146 | 106 | 2 | 8 | 251 | 20 | 18 | 9 | 5 | 16 | |
Swell 2 Height (m) Direction Period (s) | W 12 | W 11 | WSW 10 | WSW 9 | N 8 | N 10 | N 9 | N 9 | NW 8 | NW 7 | NW 7 | NNW 6 | N 6 | SW 8 | — | W 10 | — | — | W 10 | W 10 | N 7 |
3 | 2 | 10 | 27 | 18 | 90 | 137 | 106 | 59 | 18 | 12 | 4 | 30 | 2 | — | 8 | — | — | 17 | 17 | 4 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | N 11 | WSW 8 | WSW 8 | WSW 10 | WSW 10 | SW 10 | WSW 9 | WSW 9 | SW 9 | — | — | — | — | — | — | N 8 | WNW 5 |
— | — | — | — | 2 | 14 | 7 | 19 | 36 | 23 | 8 | 8 | 3 | — | — | — | — | — | — | 10 | 2 | |
Wind waves Height (m) Direction Period (s) | W 7 | W 7 | WNW 7 | WNW 6 | WNW 6 | — | — | — | — | E 3 | ENE 3 | NE 4 | — | N 9 | N 8 | — | N 8 | N 7 | NNE 6 | N 5 | NNE 4 |
134 | 134 | 114 | 114 | 113 | — | — | — | — | 1 | 3 | 14 | — | 229 | 286 | — | 286 | 226 | 58 | 14 | 7 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 148 | 574 | 0 | 233 | 247 | 0 | 0 | 0 | 10 | 11 | 11 | 0 | 0 | 450 | 297 | 488 | 297 | 174 | 256 | 531 | 572 |
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.











