Surf Forecasts:
Cornish Reef surf forecast from 8 Sep 2026:
- Best quality surf: Tuesday 15 Sep, 1AM (local time) - 7ft (2.1m), 10s period, WSW swell with cross-offshore winds.
- Most powerful swell: Saturday 12 Sep, 1PM (local time) - 7.5ft (2.3m), 11s period, W swell with 1,219 kJ wave energy.
- Next surfable swell (1★+): Tuesday 15 Sep, 1AM (local time) - 7ft (2.1m), 10s period with WSW 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 Tuesday (Sep 15) at 1AM. The primary swell is predicted to be 2.1m and 10s period. 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 2.3m 11s and forecast to arrive on Saturday (Sep 12) at 1PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Thursday (Sep 10) at 4AM.
| Wave Type | Time (IST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Tue 15th Sep) | 7ft (2.1m) 10s |
| Best Surf | 1AM (Tue 15th Sep) | 7ft (2.1m) 10s |
| Most Powerful | 1PM (Sat 12th Sep) | 7.5ft (2.3m) 11s |
Table - best surf conditions forecast for Cornish Reef over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s get into it for Cornish Reef.
Right off the bat, I’ll be straight with you – the next week and a half is a bit of a write-off for any decent surf. We’ve got a long stretch of poor conditions, with the wind and swell not lining up at all. The water is sitting at 62°, which is a touch warmer than normal for this time of year, so at least you won't be freezing if you go for a paddle, but you won't be catching much.
The first real reason to start checking your board comes up on Thursday, 18 September morning. The swell jumps up to 8ft from the WNW, with a long period of 11 seconds, giving us a solid groundswell. The combined energy is strong at 1302, so there's plenty of power. The wind is a gentle cross-shore, which is clean enough. This is a big swell though, over 8ft, so this is expert territory only, and it’s going to be a big, powerful wave. It's a reef break, so that long period should wrap in nicely, but you’ll need to know what you’re doing. The morning is the call here, as the afternoon gets a bit more cross-on.
Then, on Saturday, 19 September morning, we get a bit of a breather with a smaller, cleaner option. Swell drops to 5ft from the WNW, combined energy at 383, and we get a light offshore from the SE. That makes for clean, lined-up waves, perfect for the intermediate surfer looking to get a few. It won't be as powerful as the Thursday, but it'll be a lot more user-friendly.
The real standout in the whole forecast, though, is Monday, 21 September morning. The swell is 5ft from the WSW, with a very long 11-second period, combined energy of 495. The wind is light and offshore from the SE, so it’s glassy. This is a classic setup for Cornish Reef – clean, groomed faces with proper groundswell grunt. This is the best on offer, and it’s over a week away, so keep an eye on it, but it’s the one to pencil in.
After that, it drops off again. The longer period swells (over 11 seconds) like the 21st are great for the reef, giving you those long, walling lines, but the sets will be more spaced out.
Stay hopeful, it’s never flat for long around here.
Rusty
Short Range ForecastLight rain (total 2mm), mostly falling on Wed night. Very mild (max 16°C on Thu morning, min 13°C on Tue night). Winds decreasing (fresh winds from the NW on Tue afternoon, light winds from the W by Wed morning). | Days 5-7 Weather SummaryLight rain (total 4mm), mostly falling on Fri night. Very mild (max 18°C on Sun afternoon, min 13°C on Fri night). Winds decreasing (fresh winds from the WSW on Sat morning, light winds from the SSW by Sat night). | |||||||||||||||||||
Tue 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | ||||||||||||||
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 10 | WNW 10 | W 9 | W 8 | WSW 7 | WSW 10 | WSW 10 | W 10 | W 9 | W 8 | W 13 | W 10 | WSW 10 | WSW 9 | WSW 9 | WSW 9 | WSW 8 | WSW 8 | W 8 | WSW 10 |
Wave Graph  | ||||||||||||||||||||
 kJ | 1021 | 551 | 220 | 130 | 140 | 894 | 778 | 423 | 292 | 265 | 905 | 1098 | 631 | 294 | 173 | 129 | 99 | 179 | 309 | 768 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | on | cross-on | cross-off | cross-on | cross-on | on | on | cross-on | cross | cross-on | cross-on | cross-on | cross | cross-on | cross | cross-on | cross-on | cross-off |
High Tide | 4:38AM3.97m | 4:50PM4.33m | 5:22AM4.24m | 5:33PM4.57m | 6:02AM4.43m | 6:12PM4.69m | 6:39AM4.50m | 6:50PM4.67m | 7:13AM4.48m | 7:26PM4.54m | 7:47AM4.35m | 8:01PM4.31m | ||||||||
Low Tide | 10:23PM0.44m | 10:38AM0.61m | 11:06PM0.10m | 11:20AM0.33m | 11:45PM-0.11m | 11:58AM0.15m | 00:21AM-0.19m | 12:34PM0.08m | 00:55AM-0.12m | 1:09PM0.13m | 1:28AM0.06m | 1:43PM0.28m | 2:00AM0.35m | |||||||
 |  |  |  |  | |  | | | | |  | |  | | | | | | | |
 | — | — | 7:00 | — | — | 7:01 | — | — | 7:03 | — | — | 7:05 | — | — | 7:05 | — | — | 7:07 | — | — |
 | 8:10 | — | — | 8:07 | — | — | 8:06 | — | — | 8:02 | — | — | 8:00 | — | — | 7:59 | — | — | 7:55 | — |
mm | — | — | — | — | 1 | — | 1 | — | — | — | 2 | 2 | — | — | — | — | — | — | — | — |
Temp °C | 14 | 14 | 15 | 15 | 14 | 16 | 16 | 15 | 15 | 15 | 16 | 17 | 16 | 15 | 17 | 18 | 17 | 17 | 18 | 18 |
Feels °C | 6 | 9 | 11 | 11 | 10 | 12 | 12 | 12 | 12 | 12 | 12 | 13 | 11 | 12 | 15 | 16 | 16 | 14 | 17 | 18 |
Swell 1 Height (m) Direction Period (s) | — | WNW 10 | W 9 | W 8 | WSW 7 | — | — | — | W 9 | W 8 | W 13 | — | WNW 12 | WSW 9 | WSW 9 | WSW 9 | WNW 9 | WNW 9 | — | — |
| kJ | — | 551 | 220 | 130 | 140 | — | — | — | 292 | 265 | 905 | — | 440 | 294 | 173 | 129 | 33 | 8 | — | — |
Swell 2 Height (m) Direction Period (s) | — | — | — | W 13 | WSW 8 | — | — | — | — | WNW 11 | — | — | — | WNW 12 | WNW 11 | WNW 10 | — | W 13 | — | — |
| kJ | — | — | — | 3 | 6 | — | — | — | — | 12 | — | — | — | 269 | 133 | 88 | — | 3 | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | W 12 | — | — | — | — | W 17 | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | 11 | — | — | — | — | 6 | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | WNW 10 | — | — | SW 3 | — | WSW 10 | WSW 10 | W 10 | — | — | S 3 | W 10 | WSW 10 | — | — | — | WSW 8 | WSW 8 | W 8 | WSW 10 |
| kJ | 1021 | — | — | 5 | — | 894 | 778 | 423 | — | — | 5 | 1098 | 631 | — | — | — | 99 | 179 | 309 | 768 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 604 | 489 | 80 | 106 | 2 | 87 | 614 | 84 | 101 | 82 | 154 | 84 | 153 | 80 | 2 | 80 | 89 | 89 | 84 | 0 |
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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