Surf Forecasts:
Cornish Reef surf forecast from 5 Sep 2026:
- Best quality surf: Thursday 10 Sep, 7AM (local time) - 4.5ft (1.4m), 8s period, WSW swell with cross-offshore winds.
- Most powerful swell: Monday 7 Sep, 10AM (local time) - 8ft (2.5m), 13s period, WSW swell with 2,329 kJ wave energy.
- Next surfable swell (1★+): Thursday 10 Sep, 1AM (local time) - 3.5ft (1.1m), 7s period with W swell.
Best Forecast Surf Conditions for Cornish Reef this week:
The surf forecast for Cornish Reef over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Sep 10) at 1AM. The primary swell is predicted to be 1.1m and 7s period with a secondary swell of 0.2m and 12s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Cornish Reef in the next 16 days are 2.5m 13s and forecast to arrive on Monday (Sep 07) 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 0.8m 4s period and expected on Sunday (Sep 06) at 10AM.
| Wave Type | Time (IST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Thu 10th Sep) | 3.5ft (1.1m) 7s |
| Best Surf | 7AM (Thu 10th Sep) | 4.5ft (1.4m) 8s |
| Most Powerful | 10AM (Mon 7th Sep) | 8ft (2.5m) 13s |
Table - best surf conditions forecast for Cornish Reef over the next 16 days.
The Lowdown
Alright, this is Rusty with the lowdown on Cornish Reef. It's a reef break for the intermediate crew, wide open to west swell. Water's about 62°, a touch warmer than usual for the season.
We got a slow start. The first few days are blown out with cross-onshore wind and lumpy conditions. Your first decent window pops up Saturday afternoon, September 5th. There's a 5ft west swell at 10 seconds, and the wind switches to a clean cross-offshore from the SSE. The energy is moderate at 370. Not a standout, but it's clean and rideable.
Next good look is Thursday morning, September 10th. We get a 5ft west-southwest swell, 8-second period, with a clean cross-offshore from the southeast. The energy is weak at 306, but the conditions will be glassy. After that, the wind goes onshore again and it gets lumpy through the weekend and into the following week.
Now for the real standout. Mark Wednesday morning, September 16th. Clear skies, a clean cross-offshore SSE breeze at 9 mph, and a 5ft west swell with an 11-second period. That's a proper groundswell. The combined energy is a moderate 440. The reef will handle that period well, giving you some nice, lined-up waves. Expect crowds – this spot can get packed.
The rest of the run fizzles out into small, weak surf. By September 19th, Saturday afternoon, you've got a tiny 3ft west swell with a light offshore east wind – clean but barely enough to get wet. For beginners, most of this run is either too small or too big and messy. Those days over 8ft are expert-only territory.
So, hold out for the 16th of September. That's your best chance.
Rusty, out.
Short Range ForecastLight rain (total 6mm), mostly falling on Mon morning. Very mild (max 19°C on Sun morning, min 14°C on Sat morning). Winds increasing (light winds from the SSW on Sat morning, strong winds from the WSW by Mon morning). | Days 4-6 Weather SummaryLight rain (total 3mm), mostly falling on Thu night. Very mild (max 17°C on Thu morning, min 12°C on Wed night). Winds increasing (light winds from the W on Wed morning, fresh winds from the NW by Thu night). | ||||||||||||||||||||
Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | |||||||||||||||
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 9 | WSW 8 | WSW 10 | WSW 14 | WSW 13 | W 10 | W 10 | W 10 | W 10 | WNW 10 | W 9 | W 8 | W 7 | WSW 8 | WSW 9 | W 9 | W 8 | W 8 | W 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 633 | 363 | 155 | 149 | 889 | 2167 | 2329 | 1523 | 1767 | 1308 | 1060 | 563 | 225 | 161 | 131 | 306 | 254 | 297 | 391 | 396 | 460 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-off | cross-off | cross-off | cross-on | on | cross-on | on | on | cross-on | cross-on | cross-on | on | cross-on | cross-off | cross-off | cross | cross-on | cross-on | cross-on | cross-on |
High Tide | 12:05PM3.37m | 00:57AM3.21m | 1:36PM3.40m | 2:30AM3.34m | 2:57PM3.65m | 3:43AM3.64m | 4:00PM4.00m | 4:38AM3.97m | 4:50PM4.33m | 5:22AM4.24m | 5:33PM4.57m | 6:02AM4.43m | 6:12PM4.69m | ||||||||
Low Tide | 6:26PM1.38m | 7:14AM1.50m | 8:18PM1.22m | 8:49AM1.29m | 9:30PM0.84m | 9:51AM0.95m | 10:23PM0.44m | 10:38AM0.61m | 11:06PM0.10m | 11:20AM0.33m | 11:45PM-0.11m | 11:58AM0.15m | 00:21AM-0.19m | ||||||||
 | |  |  |  |  |  | |  | | |  | | | | | | | |  | | |
 | 6:52 | — | — | 6:54 | — | — | 6:56 | — | — | 6:58 | — | — | 7:00 | — | — | 7:01 | — | — | 7:03 | — | — |
 | — | 8:17 | — | — | 8:15 | — | — | 8:13 | — | — | 8:10 | — | — | 8:07 | — | — | 8:06 | — | — | 8:02 | — |
mm | — | — | 1 | — | 1 | — | 2 | 1 | 1 | — | — | — | — | — | — | — | — | 3 | — | — | — |
Temp °C | 15 | 15 | 18 | 19 | 18 | 16 | 15 | 14 | 14 | 15 | 15 | 14 | 15 | 15 | 14 | 17 | 17 | 16 | 15 | 15 | 14 |
Feels °C | 13 | 12 | 16 | 15 | 13 | 12 | 9 | 8 | 7 | 8 | 8 | 9 | 12 | 11 | 11 | 14 | 15 | 12 | 10 | 9 | 9 |
Swell 1 Height (m) Direction Period (s) | W 10 | W 10 | W 9 | WSW 8 | W 18 | — | — | — | — | — | — | — | W 9 | W 13 | W 7 | WSW 8 | WNW 8 | — | — | — | W 10 |
| kJ | 633 | 363 | 155 | 149 | 7 | — | — | — | — | — | — | — | 225 | 3 | 131 | 306 | 6 | — | — | — | 460 |
Swell 2 Height (m) Direction Period (s) | SW 14 | SW 13 | SW 13 | SW 13 | — | — | — | — | — | — | — | — | — | — | W 12 | — | — | — | — | — | WNW 12 |
| kJ | 7 | 7 | 7 | 7 | — | — | — | — | — | — | — | — | — | — | 11 | — | — | — | — | — | 50 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | SSE 3 | S 4 | WSW 10 | WSW 14 | WSW 13 | W 10 | W 10 | W 10 | W 10 | WNW 10 | — | W 8 | — | — | WSW 9 | W 9 | W 8 | W 8 | — |
| kJ | — | — | 3 | 20 | 889 | 2167 | 2329 | 1523 | 1767 | 1308 | 1060 | 563 | — | 161 | — | — | 254 | 297 | 391 | 396 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 80 | 0 | 2 | 606 | 404 | 150 | 327 | 444 | 150 | 150 | 347 | 150 | 84 | 87 | 0 | 0 | 2 | 150 | 358 | 602 | 150 |
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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