
Surf Forecasts:
Kilcummin Harbour surf forecast from 21 Jul 2026:
- Best quality surf: Friday 24 Jul, 1AM (local time) - 2ft (0.6m), 10s period, NW swell with cross-offshore winds.
- Most powerful swell: Monday 27 Jul, 4AM (local time) - 10ft (3.0m), 10s period, WNW swell with 1,871 kJ wave energy.
- Next surfable swell (1★+): Friday 24 Jul, 1AM (local time) - 2ft (0.6m), 10s 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 Friday (Jul 24) at 1AM. The primary swell is predicted to be 0.6m and 10s period with a secondary swell of 0.8m and 6s. 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 3.0m 10s and forecast to arrive on Monday (Jul 27) at 4AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Friday (Jul 24) at 7AM.
| Wave Type | Time (IST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Fri 24th Jul) | 2ft (0.6m) 10s |
| Best Surf | 1AM (Fri 24th Jul) | 2ft (0.6m) 10s |
| Most Powerful | 4AM (Mon 27th Jul) | 10ft (3.0m) 10s |
Table - best surf conditions forecast for Kilcummin Harbour over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s coming up for Kilcummin Harbour.
Right off the bat, it’s a quiet start. The first few days are a write-off with tiny, weak swell and the wind either onshore or cross-onshore. You’re looking at a gap of about four days with nothing worth paddling out for. The water is sitting at 63° and that’s a whole 4° warmer than usual for this time of year – that’s a proper anomaly, the ocean feels like a bathtub.
Things start to flicker to life on Friday, 24 July. The morning brings a 5ft swell from the WNW with a period of 9 seconds, and the wind swings cross-offshore, cleaning things up. The combined energy of all swells directed here is moderate (336). It’s a bit marginal, but it’s the first real chance. The afternoon builds to 6ft from the same direction, with a slightly longer period, and the energy jumps to 536. It’s still not perfect, but it’s surfable.
Saturday, 25 July morning is the first real standout. Swell pushes up to 8ft from the WNW, period is 10 seconds, and the energy is strong (1356). That’s a decent sized groundswell. The wind is cross-shore though, so it won’t be glassy, but there’s power in the water. This is for experienced surfers only – 8ft is at the top end for most. The afternoon drops off a bit and the wind turns cross-onshore, so grab the morning session.
The next proper highlight is Thursday, 30 July. The morning session sees a 7ft swell from the WNW with a 10-second period, and here’s the kicker – the wind is light and offshore from the south. That’s a rare combination for this spot, and it’ll be clean. Energy is strong (919). This is the best of the whole forecast. The wave direction is a match for the optimum swell direction from the NNW, so it’ll wrap in nicely. Get on it early.
The following week, Friday, 31 July morning, is a smaller offering – 4ft from the WNW with a 9-second period, cross-offshore wind, and clean conditions. It’s a fun, mellow size for a quick session. The energy is moderate (249).
The very end of the window, Sunday, 2 August, shows a return of offshore winds and a 5ft swell from the west/northwest. The period is a short 7 seconds, so it’ll be a bit weaker, but the wind is clean, making it worth a look if you’re desperate.
Overall, the best is Thursday 30 July morning. The swell is solid, the wind is offshore, and the energy is pumping. Saturday 25 July morning is the big-wave option for the brave. For the rest, it’s a mix of waiting and watching. Crowds can pop up here sometimes, so expect company on the good days.
Rusty.
Short Range ForecastMostly dry. Very mild (max 16°C on Thu morning, min 11°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Sat morning. Very mild (max 18°C on Fri morning, min 13°C on Thu night). Mainly fresh winds. | ||||||||||||||||||||
Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | |||||||||||||||
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) | N 6 | N 6 | N 6 | NNW 7 | NNW 7 | NNW 6 | W 8 | NNW 6 | NW 10 | WNW 9 | WNW 8 | WNW 8 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 |
Wave Graph | |||||||||||||||||||||
88 | 78 | 73 | 99 | 66 | 47 | 22 | 25 | 87 | 304 | 277 | 404 | 1314 | 1210 | 983 | 1102 | 1329 | 1795 | 1637 | 1283 | 1032 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | on | cross-on | cross-on | cross-on | cross-off | cross | cross | cross-off | cross-off | cross | cross-on | cross-on | cross-on | cross | cross-off | cross | cross |
High Tide | 11:44AM2.59m | 00:01AM2.76m | 12:41PM2.49m | 1:02AM2.51m | 1:49PM2.44m | 2:15AM2.38m | 3:03PM2.48m | 3:30AM2.37m | 4:07PM2.60m | 4:31AM2.46m | 4:59PM2.78m | 5:18AM2.59m | 5:41PM2.97m | ||||||||
Low Tide | 5:28AM0.73m | 5:34PM0.95m | 6:21AM0.94m | 6:41PM1.14m | 7:23AM1.08m | 8:03PM1.23m | 8:34AM1.13m | 9:22PM1.18m | 9:39AM1.07m | 10:24PM1.06m | 10:32AM0.94m | 11:12PM0.90m | 11:15AM0.78m | 11:52PM0.74m | |||||||
5:30 | — | — | 5:31 | — | — | 5:33 | — | — | 5:33 | — | — | 5:35 | — | — | 5:37 | — | — | 5:39 | — | — | |
— | — | 9:54 | — | — | 9:52 | — | — | 9:52 | — | — | 9:50 | — | — | 9:49 | — | — | 9:46 | — | — | 9:45 | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — |
Temp °C | 12 | 12 | 12 | 13 | 14 | 14 | 16 | 16 | 14 | 18 | 18 | 15 | 15 | 15 | 14 | 15 | 15 | 14 | 15 | 16 | 15 |
Feels °C | 8 | 9 | 8 | 11 | 12 | 13 | 14 | 13 | 12 | 13 | 13 | 12 | 11 | 10 | 9 | 11 | 10 | 10 | 12 | 13 | 12 |
Swell 1 Height (m) Direction Period (s) | W 10 | W 9 | W 9 | W 9 | W 9 | NNW 6 | NNW 6 | NNW 6 | NW 6 | WNW 9 | — | — | WNW 10 | WNW 10 | — | — | N 9 | N 9 | WNW 10 | WNW 10 | N 10 |
47 | 42 | 27 | 26 | 25 | 47 | 22 | 25 | 54 | 304 | — | — | 1314 | 1210 | — | — | 1 | 14 | 1637 | 1283 | 66 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | W 9 | W 8 | W 8 | NW 10 | — | — | — | — | — | — | — | — | — | N 9 | N 9 | — |
— | — | — | — | — | 24 | 22 | 22 | 87 | — | — | — | — | — | — | — | — | — | 57 | 81 | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | W 8 | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | 21 | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | N 6 | N 6 | N 6 | NNW 7 | NNW 7 | — | — | — | — | — | WNW 8 | WNW 8 | — | — | WNW 10 | WNW 10 | WNW 10 | WNW 10 | — | — | WNW 10 |
88 | 78 | 73 | 99 | 66 | — | — | — | — | — | 277 | 404 | — | — | 983 | 1102 | 1329 | 1795 | — | — | 1032 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 201 | 251 | 534 | 201 | 201 | 148 | 83 | 171 | 524 | 0 | 16 | 171 | 2 | 194 | 609 | 451 | 281 | 479 | 538 | 531 | 550 |
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.










