Surf Forecasts:
Cunns surf forecast from 6 Sep 2026:
- Best quality surf: Sunday 6 Sep, 12PM (local time) - 6ft (1.8m), 14s period, SW swell with cross-offshore winds.
- Most powerful swell: Wednesday 9 Sep, 6PM (local time) - 7.5ft (2.3m), 17s period, SSW swell with 3,229 kJ wave energy.
- Next surfable swell (1★+): Sunday 6 Sep, 12PM (local time) - 6ft (1.8m), 14s period with SW swell.
Best Forecast Surf Conditions for Cunns this week:
The surf forecast for Cunns over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Sep 06) at 12PM. The primary swell is predicted to be 1.8m and 14s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Cunns in the next 16 days are 2.3m 17s and forecast to arrive on Wednesday (Sep 09) at 6PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 6s period and expected on Wednesday (Sep 09) at 3AM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12PM (Sun 6th Sep) | 6ft (1.8m) 14s |
| Best Surf | 12PM (Sun 6th Sep) | 6ft (1.8m) 14s |
| Most Powerful | 6PM (Wed 9th Sep) | 7.5ft (2.3m) 17s |
Table - best surf conditions forecast for Cunns over the next 16 days.
The Lowdown
Alright folks, Rusty here, checking in with the outlook for Cunns.
This spot is a very exposed reef, and it's an inconsistent one, so when it lights up, you've got to be on it. The best windows are a few clear standouts, but there's a lot of waiting in between.
The water is sitting at 61°F, which is pretty much bang on average for this time of year, so no surprises there.
The first real opportunity kicks off on Sunday, September 6th. We've got a solid 6ft SW groundswell pumping in with a very long 14-second period. The energy is thumping at 1343, and it's clean. The wind is a light cross-off from the NE, so it's going to be clean. This is top-notch for experienced surfers, but at 6ft, it's a serious step up, so leave the foamy at home. The crowd situation is "sometimes" at Cunns, so you might get a few out there, but it's not a zoo.
Monday morning the 7th starts small with a 3ft SW swell, but pick of the day is the afternoon. The swell jumps to 4ft from the SSW, and the wind goes clean offshore from the SE at 31 mph. It's fresh but it's offshore, making for that classic, clean shoulder. This is a solid session.
The next big standout is Sunday, September 15th. After a week of small, average, or poor conditions, the afternoon of the 15th turns glassy. The wind drops to 3 mph from the NNE, and with a 6ft SW swell and a 15-second period, the energy is at 1412. That's a recipe for perfection. The swell is on the mark for the optimum SW direction, and glassy conditions at an exposed reef are about as good as it gets. This is the best on offer.
After that, the swell starts to get much bigger. By the 19th and 20th of September, we're looking at 8ft and 8ft SW swells, but the wind is onshore and cross-onshore, making it a lumpy, blown-out mess. That's heavy, nasty stuff.
The very end of the run, on Monday, September 21st, sees a massive 10ft SW swell with a long 18-second period. The energy is through the roof at 4835, but the wind is cross and cross-on. This is a beast of a wave, but it's going to be a messy, dangerous beast. Only for the brave, and even then, it's a rough one.
So, to wrap it up: the best bet is the glassy afternoon on Sunday, September 15th. The Sunday the 6th and Monday the 7th are also very solid. The rest of the period is a mix of small, average, or just plain messy, with a lot of poor days in between. Keep an eye on that 15th.
Rusty.
Short Range ForecastSome drizzle, heaviest during Mon night. Very mild (max 15°C on Sun morning, min 11°C on Sun night). Winds increasing (light winds from the SSE on Sun morning, fresh winds from the SE by Tue night). | Days 4-6 Weather SummaryMostly dry. Warm (max 23°C on Fri afternoon, min 8°C on Wed night). Winds decreasing (strong winds from the ESE on Wed morning, light winds from the NE by Fri afternoon). | ||||||||||||||||||||
Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | |||||||||||||||
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) | SW 14 | SW 14 | SW 13 | SW 13 | SSW 13 | SW 18 | SW 17 | SW 16 | SW 16 | SW 17 | SW 18 | SW 16 | SW 16 | SW 16 | SSW 15 | SW 15 | SW 14 | SW 16 | SW 15 | SW 14 | SW 18 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1343 | 1123 | 495 | 286 | 514 | 850 | 1519 | 1276 | 1096 | 1848 | 2076 | 2445 | 1728 | 1449 | 1052 | 685 | 581 | 653 | 427 | 203 | 516 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | off | off | off | off | cross-off | cross-off | cross-off | off | off | off | off | off | cross-off | cross-off | cross-off | cross | cross | cross-on | cross |
High Tide | 11:43AM0.99m | 1:29AM0.68m | 11:44AM1.13m | 00:44AM0.70m | 11:57AM1.23m | 00:28AM0.79m | 12:11PM1.28m | 00:26AM0.90m | 12:24PM1.29m | 00:33AM1.03m | 12:37PM1.26m | 00:44AM1.14m | 12:48PM1.22m | 00:58AM1.24m | |||||||
Low Tide | 7:06PM0.13m | 5:24AM0.54m | 6:51PM0.12m | 5:29AM0.37m | 6:45PM0.11m | 5:45AM0.23m | 6:43PM0.10m | 6:04AM0.12m | 6:44PM0.07m | 6:23AM0.05m | 6:47PM0.04m | 6:43AM0.02m | 6:53PM-0.01m | ||||||||
 | |  |  | |  | | |  |  | |  | | | | | | | | | | |
 | 6:48 | — | — | 6:48 | — | — | 6:47 | — | — | 6:46 | — | — | 6:43 | — | — | 6:43 | — | — | 6:41 | — | — |
 | — | 6:23 | — | — | 6:23 | — | — | 6:24 | — | — | 6:24 | — | — | 6:25 | — | — | 6:27 | — | — | 6:27 | — |
mm | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 15 | 13 | 14 | 15 | 15 | 14 | 13 | 13 | 12 | 13 | 12 | 14 | 17 | 16 | 19 | 23 | 22 | 24 | 27 | 25 |
Feels °C | 13 | 10 | 8 | 10 | 10 | 12 | 9 | 9 | 8 | 4 | 5 | 4 | 8 | 10 | 11 | 13 | 18 | 16 | 15 | 22 | 20 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 14 | SW 13 | SW 13 | SW 20 | SW 18 | SW 17 | SW 16 | SW 16 | SW 17 | SW 18 | SW 16 | SW 16 | SW 16 | SSW 15 | SW 15 | SW 14 | SW 16 | SW 15 | SW 14 | SW 18 |
| kJ | 1343 | 1123 | 495 | 286 | 204 | 850 | 1519 | 1276 | 1096 | 1848 | 2076 | 2445 | 1728 | 1449 | 1052 | 685 | 581 | 653 | 427 | 203 | 516 |
Swell 2 Height (m) Direction Period (s) | — | — | SW 23 | SSW 6 | SW 20 | SW 13 | — | — | — | S 7 | — | S 7 | — | SW 26 | SW 25 | SW 24 | — | — | SW 20 | SW 18 | — |
| kJ | — | — | 21 | 6 | 325 | 202 | — | — | — | 1 | — | 183 | — | 26 | 25 | 22 | — | — | 61 | 118 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | SW 21 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | 71 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | SSW 14 | SSE 4 | ESE 4 | SSW 13 | SSE 5 | ESE 2 | SW 16 | SSE 5 | SSE 7 | S 8 | ESE 5 | E 4 | ESE 2 | E 3 | ENE 3 | — | NE 2 | N 3 | NNW 4 | — |
| kJ | — | 79 | 29 | 26 | 514 | 46 | 1 | 69 | 74 | 129 | 168 | 42 | 21 | 1 | 1 | 4 | — | 1 | 8 | 5 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 243 | 287 | 132 | 0 | 0 | 132 | 1052 | 491 | 1626 | 1577 | 243 | 243 | 132 | 0 | 0 | 0 | 0 | 506 | 401 | 0 |
Best forecast wave conditions in Nullarbor | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Cunns surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Cunns Surf forecast
The above surf forecast table for Cunns provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Cunns can be found by selecting the local surf guide option on the grey menu. Our Cunns 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 (Cunns) 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 Cunns 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 Nullarbor? If you are looking for accommodation near Cunns, camping, hotels and holiday cottages in Nullarbor, consider staying in Thevenard which is 64 km (40 miles) away.
Nearest