Surf Forecasts:
Cornish Reef surf forecast from 30 Aug 2026:
- Most powerful swell: Friday 4 Sep, 7AM (local time) - 16ft (5.0m), 13s period, W swell with 7,874 kJ wave energy.
Best Forecast Surf Conditions for Cornish Reef this week:
The most powerful waves expected at Cornish Reef in the next 16 days are 5.0m 13s and forecast to arrive on Friday (Sep 04) at 7AM. Winds are predicted to be onshore at the time the swell arrives.
| Wave Type | Time (IST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 7AM (Fri 4th Sep) | 16ft (5.0m) 13s |
Table - best surf conditions forecast for Cornish Reef over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's have a look at what's on the menu for the next couple of weeks at our local break.
Right off the bat, it’s a bit of a rough start. The first week is mostly a write-off with real sloppy, choppy conditions. We're looking at a solid week of poor surf starting Sunday the 30th, through to at least Friday morning the 5th of September. That's nearly a full week of waiting out onshore winds and messy, lumpy seas. The energy is there in the water – for example, Monday morning the 31st shows moderate combined energy of all swells directed here (484) with a 5ft swell, but that 16 mph onshore wind is just ruining any chance of a clean wave. Even when the swell gets bigger, like Thursday the 4th with a serious 15ft W swell packing a very strong energy reading (6115), it's just blown out by a strong 25 mph onshore breeze. That’s expert-only territory with those conditions, and even then, it's likely a mess.
Now, the Saturday morning of the 5th of September shows a glimpse of hope. The swell drops to 5ft from the W, and while the wind is a light cross-onshore, the forecast just calls it "marginal." The rest of that weekend and into the following week stays pretty ordinary with lumpy cross-shore winds and dropping swell energy.
But hold on, because there is a standout window. You're going to want to circle Saturday the 12th of September on your calendar. The morning session at Cornish Reef is looking like the best bet in this entire forecast period. The wind goes glassy – dead calm from the ESE – which is a massive positive for a reef break. We'll have a clean 3ft W swell with an 11-second period, giving it decent shape and energy (238). It’ll be clean, organized, and super inviting. This is the one to aim for.
Sunday the 13th also offers a chance with clean conditions from an offshore E/NE breeze, but the swell is much smaller at 2ft to 2ft. You'll still get a wave, but it won't be the standout that Saturday morning is.
So, to sum it up: we have a long barren stretch of blown-out surf for the first week, but a true highlight on the morning of Saturday the 12th of September. Get out there for that glassy window, because after that, the swell looks to drop right off into tiny, marginal waves for the start of the following week.
Rusty.
Short Range ForecastLight rain (total 7mm), mostly falling on Sun morning. Very mild (max 17°C on Tue morning, min 14°C on Sun night). Mainly fresh winds. | Days 4-6 Weather SummaryLight rain (total 3mm), mostly falling on Thu afternoon. Very mild (max 17°C on Wed morning, min 14°C on Thu night). Winds decreasing (strong winds from the W on Thu night, light winds from the WNW by Fri night). | ||||||||||||||||||||
Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | |||||||||||||||
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) | WSW 10 | WSW 9 | W 9 | W 10 | W 10 | WSW 7 | W 8 | W 8 | WSW 7 | WSW 8 | WSW 8 | WSW 8 | W 11 | W 12 | W 12 | W 13 | W 12 | W 11 | W 10 | W 9 | WSW 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 282 | 283 | 747 | 484 | 313 | 166 | 258 | 223 | 344 | 357 | 410 | 547 | 1633 | 2426 | 5345 | 6115 | 3279 | 1065 | 377 | 198 | 157 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | on | cross-on | cross-on | cross-on | cross-off |
High Tide | 7:25PM4.46m | 7:49AM4.28m | 8:00PM4.36m | 8:24AM4.19m | 8:38PM4.18m | 9:03AM4.03m | 9:21PM3.92m | 9:49AM3.80m | 10:14PM3.62m | 10:47AM3.55m | 11:26PM3.34m | 12:05PM3.37m | 00:57AM3.21m | ||||||||
Low Tide | 1:10PM0.29m | 1:31AM0.07m | 1:43PM0.32m | 2:04AM0.19m | 2:19PM0.44m | 2:39AM0.40m | 2:58PM0.64m | 3:20AM0.70m | 3:45PM0.92m | 4:10AM1.06m | 4:48PM1.21m | 5:22AM1.38m | 6:26PM1.38m | ||||||||
 |  |  |  | | | | |  |  | |  | |  | | | |  | | | | |
 | 6:43 | — | — | 6:45 | — | — | 6:46 | — | — | 6:48 | — | — | 6:50 | — | — | 6:50 | — | — | 6:52 | — | — |
 | — | 8:31 | — | — | 8:29 | — | — | 8:27 | — | — | 8:24 | — | — | 8:22 | — | — | 8:20 | — | — | 8:17 | — |
mm | 2 | — | 1 | — | — | 2 | — | — | 2 | — | — | — | — | 3 | — | — | — | — | — | — | — |
Temp °C | 16 | 16 | 15 | 15 | 16 | 15 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 16 | 15 | 15 | 15 | 14 | 15 | 17 | 16 |
Feels °C | 14 | 13 | 9 | 10 | 12 | 11 | 13 | 14 | 14 | 13 | 13 | 12 | 11 | 10 | 8 | 8 | 8 | 8 | 13 | 15 | 12 |
Swell 1 Height (m) Direction Period (s) | WSW 10 | WSW 9 | — | — | NW 8 | W 9 | — | W 18 | WNW 8 | WNW 8 | — | — | W 11 | — | — | — | — | — | W 10 | W 9 | WSW 8 |
| kJ | 282 | 283 | — | — | 9 | 73 | — | 6 | 39 | 7 | — | — | 1633 | — | — | — | — | — | 377 | 198 | 157 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 14 | SW 13 | SW 13 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 7 | 7 | 7 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | W 9 | W 10 | W 10 | WSW 7 | W 8 | W 8 | WSW 7 | WSW 8 | WSW 8 | WSW 8 | — | W 12 | W 12 | W 13 | W 12 | W 11 | — | — | — |
| kJ | — | — | 747 | 484 | 313 | 166 | 258 | 223 | 344 | 357 | 410 | 547 | — | 2426 | 5345 | 6115 | 3279 | 1065 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 146 | 146 | 327 | 150 | 84 | 87 | 80 | 153 | 89 | 373 | 633 | 150 | 84 | 385 | 614 | 604 | 604 | 150 | 69 | 84 | 2 |
Best forecast wave conditions in Clare | |||||||||||||||||||||
Best forecast wave conditions in Ireland | |||||||||||||||||||||
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Information about the Cornish Reef Surf forecast
The above surf forecast table for Cornish Reef provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Cornish Reef can be found by selecting the local surf guide option on the grey menu. Our Cornish Reef 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 (Cornish Reef) 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 Cornish Reef 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.
Are you planning a holiday in Clare? If you are looking for accommodation near Cornish Reef, camping, hotels and holiday cottages in Clare, consider staying in Inis which is 27 km (17 miles) away. Other places in and around Clare where you can find information about places to rent, and car hire include Foynes which is 38 km (24 miles) away, Shannon, Galway and Limerick.
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