Surf Forecasts:
Kilcummin Harbour surf forecast from 14 Jul 2026:
- Most powerful swell: Sunday 19 Jul, 7AM (local time) - 4ft (1.2m), 7s period, NNW swell with 131 kJ wave energy.
Best Forecast Surf Conditions for Kilcummin Harbour this week:
The most powerful waves expected at Kilcummin Harbour in the next 16 days are 1.2m 7s and forecast to arrive on Sunday (Jul 19) at 7AM. 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 3s period and expected on Wednesday (Jul 15) at 1AM.
| Wave Type | Time (IST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 7AM (Sun 19th Jul) | 4ft (1.2m) 7s |
Table - best surf conditions forecast for Kilcummin Harbour over the next 16 days.
The Lowdown
Alright, let’s break it down, feet and miles style. Rusty here. The next couple of weeks at Kilcummin Harbour are a slog. Flat, small, and messy for days, then a proper wall of water shows up late in the game. Gotta be patient.
Right now, through Tuesday the 14th and Wednesday the 15th, it’s ankle-biters. Swell heights are around 1ft to 2ft out of the west, with weak combined energy (116 dropping to 35). The wind is cross or cross-onshore, so the surface is choppy and rippled. Not worth it.
Thursday the 16th through Tuesday the 22nd is more of the same – small, weak, and mostly onshore. North and northwest winds blow straight on or cross-on, with swell heights barely hitting 3ft. Combined energy is mostly in the double digits to low triple digits. It’s a dry spell. Wednesday morning the 23rd cleans up with cross-offshore wind, but the swell is only 1ft. Not enough.
Then the big one. On Friday morning the 24th, a very long period groundswell hits – 10ft from the west-northwest, with a period of 13 seconds. Combined energy blasts to 2890. That’s serious power. The wind is cross-onshore, so it’ll be a little lumpy. This is for experts only – way too big for beginners. The long period means better shape at the reef, with longer lulls between sets.
The real standout? Saturday the 25th. Morning brings 7ft west-northwest swell with an 11-second period, and the wind goes glassy from the south. Combined energy is 1162 – strong. Conditions are clean, glassy. That’s the session to aim for. The afternoon holds 7ft with glassy conditions too, but light rain may show up. Sunday the 26th stays solid at 8ft, but the wind picks up fresh from the west, making it lumpy.
Monday the 27th keeps the 10ft swell, but the wind is strong and cross-off or offshore. The morning is clean, but the wind is fresh. By Tuesday the 28th, the swell drops to 6ft and the wind gets strong, messy. After that, it’s back to small and poor.
So, bottom line: Friday the 24th is a beast for the brave, but Saturday the 25th is the call – clean, glassy, and solid. Skip the first ten days. That Saturday morning is the one.
Rusty.
Short Range ForecastMostly dry. Warm (max 24°C on Wed afternoon, min 17°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 17°C on Thu night, min 12°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | |||||||||||||||
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 10 | W 10 | W 10 | WSW 9 | WSW 9 | WSW 8 | W 9 | WNW 10 | W 8 | N 5 | N 6 | N 6 | N 6 | NNW 6 | NNW 6 | N 7 | NNW 6 | WNW 11 | W 11 | W 10 | W 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 102 | 69 | 46 | 27 | 28 | 24 | 24 | 19 | 22 | 44 | 88 | 75 | 61 | 52 | 95 | 107 | 68 | 39 | 55 | 49 | 46 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-off | cross-off | cross-on | glassy | cross-on | on | on | on | on | on | on | on | cross-on | on | on | on | on | on | on |
High Tide | 6:12AM3.18m | 6:35PM3.67m | 7:03AM3.23m | 7:23PM3.84m | 7:51AM3.22m | 8:10PM3.90m | 8:37AM3.14m | 8:55PM3.83m | 9:22AM3.02m | 9:39PM3.65m | 10:07AM2.88m | 10:24PM3.39m | 10:54AM2.73m | 11:10PM3.07m | |||||||
Low Tide | 12:09PM0.21m | 00:50AM0.06m | 12:55PM0.12m | 1:40AM-0.02m | 1:40PM0.10m | 2:27AM-0.00m | 2:23PM0.15m | 3:13AM0.11m | 3:07PM0.29m | 3:57AM0.29m | 3:52PM0.48m | 4:42AM0.50m | 4:40PM0.72m | ||||||||
 | |  | | | | |  | | | |  | | | | | | | | | | |
 | 5:20 | — | — | 5:20 | — | — | 5:22 | — | — | 5:24 | — | — | 5:24 | — | — | 5:26 | — | — | 5:28 | — | — |
 | — | — | 10:04 | — | — | 10:02 | — | — | 10:00 | — | — | 10:00 | — | — | 9:59 | — | — | 9:58 | — | — | 9:55 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 22 | 21 | 22 | 24 | 22 | 21 | 21 | 17 | 14 | 14 | 13 | 14 | 14 | 13 | 14 | 14 | 13 | 15 | 15 | 15 |
Feels °C | 18 | 20 | 21 | 21 | 23 | 23 | 20 | 19 | 14 | 10 | 10 | 10 | 10 | 10 | 10 | 12 | 11 | 11 | 13 | 13 | 12 |
Swell 1 Height (m) Direction Period (s) | W 10 | W 10 | W 10 | WSW 9 | WSW 9 | WSW 8 | W 9 | W 8 | W 8 | WNW 11 | WNW 10 | WNW 8 | NW 8 | NW 7 | W 9 | W 9 | W 8 | NNW 6 | W 11 | W 10 | W 10 |
| kJ | 102 | 69 | 46 | 27 | 28 | 24 | 24 | 12 | 22 | 44 | 74 | 47 | 29 | 14 | 15 | 23 | 22 | 21 | 55 | 49 | 46 |
Swell 2 Height (m) Direction Period (s) | W 18 | SW 18 | NNE 4 | W 11 | W 16 | NNE 4 | W 11 | WNW 10 | WNW 12 | W 8 | W 13 | W 8 | W 8 | W 7 | W 7 | WNW 12 | WNW 11 | WNW 11 | NNW 6 | W 7 | NNW 5 |
| kJ | 6 | 12 | 3 | 2 | 5 | 2 | 2 | 19 | 13 | 21 | 4 | 5 | 10 | 10 | 4 | 13 | 24 | 39 | 11 | 10 | 6 |
Swell 3 Height (m) Direction Period (s) | W 18 | — | W 18 | W 16 | — | W 16 | W 15 | W 15 | W 15 | W 14 | — | — | — | W 10 | W 13 | WNW 12 | — | W 8 | N 6 | — | N 6 |
| kJ | 6 | — | 6 | 5 | — | 5 | 5 | 4 | 4 | 4 | — | — | — | 2 | 4 | 13 | — | 11 | 3 | — | 1 |
Wind waves Height (m) Direction Period (s) | NE 3 | NE 2 | ESE 3 | ENE 3 | NE 2 | ESE 2 | — | NNE 3 | NNE 4 | N 5 | N 6 | N 6 | N 6 | NNW 6 | NNW 6 | N 7 | NNW 6 | NE 3 | — | N 6 | NNE 4 |
| kJ | 2 | 1 | 2 | 1 | 1 | 1 | — | 3 | 22 | 44 | 88 | 75 | 61 | 52 | 95 | 107 | 68 | 3 | — | 15 | 13 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 10 | 10 | 15 | 52 | 66 | 66 | 66 | 246 | 66 | 297 | 531 | 66 | 256 | 466 | 376 | 55 | 281 | 55 | 69 | 244 | 66 |
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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