
Surf Forecasts:
Kilcummin Harbour surf forecast from 30 Jul 2026:
- Best quality surf: Friday 31 Jul, 1AM (local time) - 4ft (1.2m), 7s period, W swell with cross-offshore winds.
- Most powerful swell: Tuesday 4 Aug, 10AM (local time) - 3.5ft (1.0m), 10s period, N swell with 184 kJ wave energy.
- Next surfable swell (1★+): Friday 31 Jul, 1AM (local time) - 4ft (1.2m), 7s 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 Friday (Jul 31) at 1AM. The primary swell is predicted to be 1.2m and 7s period with a secondary swell of 1.0m 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 1.0m 10s and forecast to arrive on Tuesday (Aug 04) at 10AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 3s period and expected on Wednesday (Aug 05) at 4PM.
| Wave Type | Time (IST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Fri 31st Jul) | 4ft (1.2m) 7s |
| Best Surf | 1AM (Fri 31st Jul) | 4ft (1.2m) 7s |
| Most Powerful | 10AM (Tue 4th Aug) | 3.5ft (1.0m) 10s |
Table - best surf conditions forecast for Kilcummin Harbour over the next 16 days.
The Lowdown
Right, folks, Rusty here. I’ve been staring at the charts for Kilcummin Harbour and, well, it’s a bit of a sad story for the next couple of weeks. Don’t get your hopes up too high.
The overall pattern is one of persistent grovel. Most of the 16-day window is a bust, with a long stretch of nothing worth paddling out for. The first real glimmer of anything surfable doesn’t show up until Sunday, the 2nd of August, and even then, it’s marginal.
From the start of the period on Thursday, 30th July, through to Saturday, the 1st of August, it’s a write-off. We’ve got a moderate cross-breeze from the west, with small, weak swell around 3ft to 4ft and a short, weak period of 6-8 seconds. The onshore wind is just chopping it all up. The wave energy is weak to moderate (269-159), but the wind makes it unsurfable. The water temp is 61°F, which is a touch warmer than normal for this time of year.
Then, finally, on Sunday morning, the 2nd of August, we get a brief window of hope. A light south-easterly cross-offshore breeze cleans things up. The swell is still small, just 3ft, but it’s from the north with a period of 9 seconds, giving it a bit more push. The combined energy is moderate (258). This is the best it’s going to get, but it’s still small and weak. The afternoon turns a bit messy with an easterly cross-breeze.
Monday, the 3rd of August, has a clean morning again with 3ft of north swell, but the energy has dropped right off (119). It’s surfable, but you’ll be working hard for tiny, weak waves. After that, it’s back to poor conditions with onshore breezes and tiny, short-period leftovers for days.
The only other standout, and it’s a long shot, is on Sunday, the 9th of August. The swell picks up to 5ft from the north-west, with a short period of 7 seconds. The energy is moderate (226), but it’s a bit of a messy one. The wind is light and cross-shore in the morning, but the short period will make it walled up and choppy. This is a kite-surfing angle, boys. For a paddle surfer, the conditions are too rough and the waves are too short and fat.
The rest of the second week falls away into nothing. Tiny, weak swells (1.0ft to 2ft) with glassy conditions on the 10th and 12th of August, but the swell is just too small to do anything. The water will be flat and clean, but you’ll be sitting on your board, not riding it.
So, the honest truth is, there’s only one real shot, and that’s Sunday morning, the 2nd of August. It’s not going to be epic, but it’s the only clean, rideable wave in the window. After that, it’s a long dry spell. The forecast can change, but for now, keep your board waxed and your hopes low.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Thu afternoon. Very mild (max 17°C on Sun morning, min 12°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 2mm), mostly falling on Sun night. Very mild (max 19°C on Sun afternoon, min 13°C on Sun night). Wind will be generally light. | |||||||||||||||||||
Thu 30 | Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | ||||||||||||||
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) | N 8 | W 7 | WNW 7 | WNW 7 | WNW 7 | WNW 6 | WNW 7 | NW 7 | N 9 | N 10 | N 9 | N 8 | N 8 | N 10 | N 10 | N 9 | N 9 | N 6 | NNE 6 | N 6 |
Wave Graph | ||||||||||||||||||||
140 | 128 | 139 | 139 | 114 | 114 | 150 | 93 | 140 | 143 | 129 | 89 | 89 | 183 | 184 | 133 | 76 | 35 | 35 | 26 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross | cross | cross | cross | cross | glassy | cross-off | cross | off | cross-off | cross-on | cross | cross-on | cross-on | glassy | cross-on | on | glassy |
High Tide | 7:25PM3.44m | 7:39AM2.96m | 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 | |||||||
Low Tide | 1:36AM0.39m | 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 | ||||||||
— | — | 5:46 | — | — | 5:48 | — | — | 5:48 | — | — | 5:50 | — | — | 5:52 | — | — | 5:54 | — | — | |
— | 9:39 | — | — | 9:38 | — | — | 9:37 | — | — | 9:35 | — | — | 9:32 | — | — | 9:30 | — | — | 9:29 | |
mm | 1 | — | 1 | — | — | — | — | — | — | — | 2 | — | — | — | — | — | — | — | — | 4 |
Temp °C | 15 | 13 | 15 | 15 | 13 | 15 | 16 | 13 | 17 | 19 | 17 | 14 | 16 | 16 | 16 | 17 | 16 | 17 | 16 | 16 |
Feels °C | 9 | 10 | 10 | 10 | 10 | 11 | 12 | 11 | 16 | 17 | 17 | 13 | 13 | 14 | 15 | 16 | 15 | 16 | 15 | 16 |
Swell 1 Height (m) Direction Period (s) | N 8 | N 8 | N 8 | N 8 | N 8 | N 8 | N 8 | NW 7 | NW 8 | N 10 | N 9 | N 8 | N 8 | N 10 | N 10 | N 9 | N 9 | N 6 | NNE 6 | N 6 |
140 | 119 | 55 | 45 | 29 | 18 | 18 | 93 | 111 | 143 | 129 | 89 | 89 | 183 | 184 | 133 | 76 | 31 | 35 | 26 | |
Swell 2 Height (m) Direction Period (s) | NW 7 | — | W 12 | W 11 | WSW 10 | WSW 9 | WSW 9 | N 10 | N 9 | NW 8 | NW 7 | NW 7 | NW 7 | NW 6 | NW 6 | NNW 6 | WNW 6 | N 8 | N 8 | N 8 |
2 | — | 3 | 2 | 10 | 27 | 25 | 89 | 140 | 90 | 56 | 30 | 16 | 6 | 6 | 3 | 4 | 35 | 22 | 19 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | N 11 | WSW 8 | WSW 8 | WSW 10 | SW 10 | SW 10 | WSW 9 | WSW 9 | SW 9 | W 11 | W 10 | NW 7 | NW 7 | W 10 |
— | — | — | — | — | — | 2 | 14 | 7 | 19 | 23 | 14 | 8 | 8 | 3 | 9 | 8 | 8 | 7 | 19 | |
Wind waves Height (m) Direction Period (s) | W 7 | W 7 | WNW 7 | WNW 7 | WNW 7 | WNW 6 | WNW 7 | — | — | — | — | — | — | — | E 3 | — | NE 5 | E 3 | ESE 3 | — |
127 | 128 | 139 | 139 | 114 | 114 | 150 | — | — | — | — | — | — | — | 3 | — | 17 | 3 | 1 | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 770 | 0 | 148 | 769 | 2 | 247 | 247 | 0 | 0 | 10 | 0 | 0 | 10 | 10 | 10 | 83 | 0 | 56 | 111 | 11 |
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.











