Surf Forecasts:
Kilcummin Harbour surf forecast from 1 Aug 2026:
- Best quality surf: Sunday 2 Aug, 1AM (local time) - 3.5ft (1.1m), 8s period, NW swell with glassy winds.
- Most powerful swell: Thursday 6 Aug, 1AM (local time) - 7.5ft (2.3m), 8s period, NNW swell with 652 kJ wave energy.
- Next surfable swell (1★+): Sunday 2 Aug, 1AM (local time) - 3.5ft (1.1m), 8s period with NW 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 Sunday (Aug 02) at 1AM. The primary swell is predicted to be 1.1m and 8s period with a secondary swell of 0.7m and 10s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Kilcummin Harbour in the next 16 days are 2.3m 8s and forecast to arrive on Thursday (Aug 06) at 1AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 5s period and expected on Friday (Aug 07) at 4PM.
| Wave Type | Time (IST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Sun 2nd Aug) | 3.5ft (1.1m) 8s |
| Best Surf | 1AM (Sun 2nd Aug) | 3.5ft (1.1m) 8s |
| Most Powerful | 1AM (Thu 6th Aug) | 7.5ft (2.3m) 8s |
Table - best surf conditions forecast for Kilcummin Harbour over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's take a look at what's on the menu for Kilcummin Harbour over the next couple of weeks.
First off, we've got a bit of a slow start. The water's sitting at 61°, which is a touch warmer than normal for this time of year, so that's a nice little bonus if you're getting in.
The best bet this week is going to be Sunday morning, August 2nd. We've got a clean 4ft swell from the NW with a light, cross-off breeze from the SSE. The combined energy is moderate at 258, and it's a reef break that's fairly consistent, so it should offer up some fun, tidy waves. The wind will be light, keeping things glassy. Expect a few others out there as it's sometimes crowded, but for a Sunday morning session, it'll be worth the paddle.
The other window that's looking promising is Monday morning, August 10th. The swell picks up a bit to 6ft from the NW, with a period of 8 seconds. The wind is a light cross-off from the WSW, keeping it clean. The combined energy is moderate at 350, so there's a bit more push behind it. This one's for the intermediates, as that 6ft on a reef can get a bit lively.
After that, the forecast gets a bit messy. There's a solid run of poor conditions with onshore winds and chop. We do get a mention of Wednesday morning, August 12th with a clean 4ft swell from the WSW, but the energy is moderate at 226. It's a surfable option, but nothing to write home about.
The end of the second week, around August 16th, shows a bigger swell building—8ft to 8ft from the W—but the wind is cross or cross-on, and the conditions are described as marginal. The combined energy is strong at 999-1006, so there's plenty of power, but it's not going to be clean. This one's for the experts only, and even then, it's a gamble.
Honestly, for the next 16 days, the standout is the Sunday the 2nd and the Monday the 10th. The rest is a lot of waiting, a lot of chop, and a few days where the wind just doesn't play ball. If you can get out on those two mornings, you'll be smiling. If not, keep an eye on the forecasts—things can change.
Rusty.
Short Range ForecastModerate rain (total 11mm), heaviest on Mon night. Very mild (max 16°C on Sat afternoon, min 12°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummarySome drizzle, heaviest during Wed morning. Very mild (max 16°C on Tue afternoon, min 13°C on Wed night). Winds increasing (calm on Tue morning, fresh winds from the NW by Wed morning). | ||||||||||||||||||||
Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | |||||||||||||||
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) | WNW 6 | NW 7 | NW 8 | NW 8 | NW 8 | N 9 | N 9 | N 9 | N 9 | NNE 9 | N 8 | N 8 | NNW 7 | NNW 7 | NNW 8 | N 8 | N 7 | N 7 | WNW 9 | WNW 9 | W 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 126 | 131 | 131 | 145 | 129 | 99 | 129 | 132 | 164 | 106 | 69 | 65 | 117 | 177 | 652 | 275 | 156 | 44 | 94 | 140 | 234 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | glassy | cross-off | cross-off | cross-off | cross | cross | cross-off | cross-off | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-off | cross-off | cross | cross-off |
High Tide | 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 | 12:54PM2.57m | 1:26AM2.61m | ||||||||
Low Tide | 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 | 6:23AM0.88m | 7:00PM1.06m | ||||||||
 | |  |  |  |  | | | | | |  |  | | | | | | | |  | |
 | 5:48 | — | — | 5:48 | — | — | 5:50 | — | — | 5:52 | — | — | 5:54 | — | — | 5:56 | — | — | 5:58 | — | — |
 | — | — | 9:37 | — | — | 9:35 | — | — | 9:32 | — | — | 9:30 | — | — | 9:29 | — | — | 9:27 | — | — | 9:24 |
mm | — | — | — | — | 3 | 3 | — | — | 5 | — | — | — | 1 | — | — | — | — | — | — | — | 1 |
Temp °C | 15 | 16 | 13 | 13 | 12 | 13 | 13 | 15 | 15 | 15 | 16 | 15 | 15 | 14 | 14 | 15 | 16 | 14 | 17 | 17 | 14 |
Feels °C | 11 | 12 | 12 | 11 | 10 | 12 | 10 | 13 | 14 | 16 | 16 | 14 | 10 | 7 | 9 | 11 | 11 | 12 | 12 | 12 | 11 |
Swell 1 Height (m) Direction Period (s) | N 8 | WSW 9 | NW 8 | NW 8 | NW 8 | N 9 | N 9 | N 9 | N 9 | NNE 9 | N 8 | N 8 | W 10 | W 11 | W 10 | N 8 | N 7 | N 7 | WNW 9 | WNW 9 | W 8 |
| kJ | 18 | 25 | 131 | 145 | 129 | 99 | 129 | 132 | 164 | 106 | 69 | 65 | 8 | 20 | 18 | 275 | 156 | 44 | 94 | 140 | 234 |
Swell 2 Height (m) Direction Period (s) | WSW 9 | N 7 | N 10 | N 9 | N 9 | NW 8 | NW 7 | NW 7 | NW 6 | NW 6 | W 11 | NW 7 | W 10 | — | — | W 10 | WNW 5 | WNW 5 | N 6 | N 6 | N 7 |
| kJ | 27 | 17 | 89 | 106 | 104 | 45 | 23 | 11 | 6 | 1 | 9 | 7 | 8 | — | — | 17 | 15 | 14 | 16 | 5 | 4 |
Swell 3 Height (m) Direction Period (s) | — | N 11 | WSW 8 | WSW 8 | WSW 10 | WSW 9 | SW 9 | WSW 9 | WSW 9 | W 9 | NW 6 | W 10 | — | — | — | W 8 | W 10 | W 9 | W 4 | N 7 | — |
| kJ | — | 3 | 14 | 7 | 19 | 34 | 22 | 8 | 8 | 2 | 1 | 8 | — | — | — | 1 | 17 | 15 | 3 | 1 | — |
Wind waves Height (m) Direction Period (s) | WNW 6 | NW 7 | — | — | — | — | E 3 | ENE 3 | NE 3 | ESE 2 | — | — | NNW 7 | NNW 7 | NNW 8 | WNW 6 | — | — | SSW 3 | W 5 | — |
| kJ | 126 | 131 | — | — | — | — | 1 | 3 | 2 | 1 | — | — | 117 | 177 | 652 | 34 | — | — | 1 | 32 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 233 | 247 | 0 | 0 | 0 | 0 | 10 | 10 | 0 | 0 | 83 | 122 | 259 | 467 | 270 | 233 | 351 | 2 | 0 | 247 | 2 |
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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