Surf Forecasts:
Cunns surf forecast from 1 Sep 2026:
- Best quality surf: Monday 7 Sep, 3AM (local time) - 10ft (3.0m), 14s period, WSW swell with glassy winds.
- Most powerful swell: Tuesday 8 Sep, 9AM (local time) - 10ft (3.0m), 17s period, SW swell with 4,822 kJ wave energy.
- Next surfable swell (1★+): Thursday 3 Sep, 3PM (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 Thursday (Sep 03) at 3PM. The primary swell is predicted to be 1.8m and 14s period with a secondary swell of 0.4m and 14s. 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 3.0m 17s and forecast to arrive on Tuesday (Sep 08) at 9AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Sunday (Sep 06) at 9AM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3PM (Thu 3rd Sep) | 6ft (1.8m) 14s |
| Best Surf | 3AM (Mon 7th Sep) | 10ft (3.0m) 14s |
| Most Powerful | 9AM (Tue 8th Sep) | 10ft (3.0m) 17s |
Table - best surf conditions forecast for Cunns over the next 16 days.
The Lowdown
G’day, Rusty here. We’ve got a bit of a slow start but things start building at Cunns (a reef setup, exposed to the SW swell) through the week. The first real action worth paddling out for hits on Thursday afternoon, September 3. That’s when the south-west swell sits at 6ft with a 14-second period, the wind is a gentle cross-off breeze from the south, and conditions clean right up. It’s not huge, but for an advanced crew, the shape should be there. Combined energy sits at 1388 (moderate), and the water temp anomaly is about average for this time of year—nothing wild.
Friday morning September 4 is messy with a moderate cross-shore and light rain, so skip it. Saturday September 5 stays onshore and choppy, not worth it for paddle surfing—maybe more of a kite day if you’re into that.
Now here’s the standout: Monday morning September 7. The swell jumps to a solid 10ft from the SW, 14-second period, and we get a light offshore from the SE. Clean conditions, excellent for experienced surfers only—this is too big for beginners. Combined energy is 3192 (strong). That’s the session to circle.
Tuesday September 8 has the same size swell but near-gale winds ruin it. Wednesday September 9 stays big at 10ft but strong breezes keep it marginal. By Thursday morning September 10, the swell drops to 7ft, fresh offshore from the ESE, clean—another good window for advanced surfers (2499 energy, strong).
The second week looks smaller and more settled. Friday September 11 morning has a clean 3ft swell from the SW, gentle breeze, clean—fun small waves. Saturday September 12 morning is glassy with a 3ft SW swell, 14-second period, and combined energy of 565 (weak). Really clean but small. Monday September 14 morning stays clean but small at 4ft. Wednesday September 16 is similar—small and clean.
Thursday September 17 morning brings a bit more life: 5ft SW swell with an 18-second period, light offshore from the ENE, clean, and combined energy of 1632 (strong). That’s a promising long-range option—less certain this far out but worth keeping an eye on.
Overall, Monday September 7 morning is the best on offer: big, clean, offshore, and powerful. The reef at Cunns should handle that long-period groundswell well. Crowds are possible here sometimes, so get in early.
Rusty.
Short Range ForecastLight rain (total 5mm), mostly falling on Thu night. Warm (max 24°C on Fri morning, min 13°C on Tue night). Winds increasing (light winds from the NW on Wed night, fresh winds from the WSW by Fri afternoon). | Days 5-7 Weather SummaryHeavy rain (total 24mm), heaviest during Sun night. Very mild (max 18°C on Sun morning, min 13°C on Sat night). Mainly strong winds. | ||||||||||||||||||
Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | ||||||||||||||
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 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 14 | SW 15 | SW 14 | SW 14 | W 11 | SW 14 | SW 14 | SW 13 |
Wave Graph  | |||||||||||||||||||
 kJ | 1014 | 783 | 1801 | 899 | 1033 | 1336 | 1833 | 1823 | 2758 | 1850 | 2579 | 1779 | 2094 | 984 | 632 | 2511 | 3192 | 3673 | 3113 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-on | cross-on | on | cross-off | cross-off | cross | cross-on | cross-on | cross-on | cross-on | cross-off | cross-off | cross | glassy | off | cross-off | cross-off |
High Tide | 2:17AM1.24m | 2:01PM0.98m | 2:38AM1.18m | 1:55PM0.86m | 2:56AM1.07m | 1:20PM0.80m | 3:04AM0.92m | 12:18PM0.85m | 2:38AM0.77m | 11:43AM0.99m | 1:29AM0.68m | 11:44AM1.13m | 00:44AM0.70m | ||||||
Low Tide | 8:24AM0.19m | 8:04PM0.03m | 8:42AM0.36m | 8:05PM0.07m | 8:45AM0.54m | 7:54PM0.11m | 7:58AM0.69m | 7:31PM0.13m | 6:09AM0.69m | 7:06PM0.13m | 5:24AM0.54m | 6:51PM0.12m | |||||||
 |  | |  | | |  |  |  | | | | | |  | |  | |  | |
 | — | 6:54 | — | — | 6:52 | — | — | 6:52 | — | — | 6:50 | — | — | 6:48 | — | — | 6:48 | — | — |
 | 6:20 | — | 6:21 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:23 | — | — | 6:23 | — |
mm | — | — | — | — | — | — | 2 | 2 | 1 | — | — | — | — | 1 | 8 | 13 | — | 2 | 3 |
Temp °C | 14 | 14 | 14 | 14 | 17 | 17 | 18 | 24 | 19 | 16 | 16 | 15 | 15 | 18 | 16 | 15 | 16 | 17 | 15 |
Feels °C | 10 | 9 | 9 | 11 | 14 | 14 | 13 | 19 | 15 | 12 | 13 | 12 | 13 | 11 | 14 | 9 | 14 | 13 | 9 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | SW 15 | SW 15 | SW 15 | — | SW 15 | SW 14 | SW 15 | SW 14 | SW 14 | SW 23 | — | — | — |
| kJ | 1014 | 783 | 1801 | 899 | 1033 | 1336 | 1833 | 1823 | 2758 | — | 2579 | 1779 | 2094 | 984 | 632 | 21 | — | — | — |
Swell 2 Height (m) Direction Period (s) | — | SW 6 | — | SW 6 | — | — | — | — | — | — | — | — | — | ESE 5 | — | — | — | — | — |
| kJ | — | 47 | — | 68 | — | — | — | — | — | — | — | — | — | 2 | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | SW 15 | SW 14 | — | SW 14 | ESE 3 | N 4 | SW 15 | SW 15 | SW 15 | SW 14 | — | NE 4 | NW 6 | W 11 | SW 14 | SW 14 | SW 13 |
| kJ | — | — | 1123 | 74 | — | 52 | 3 | 9 | 1785 | 1850 | 1526 | 52 | — | 28 | 133 | 2511 | 3192 | 3673 | 3113 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 491 | 510 | 1045 | 648 | 940 | 0 | 0 | 0 | 564 | 1061 | 1061 | 1035 | 0 | 203 | 0 | 0 | 0 | 837 | 491 |
Best forecast wave conditions in Nullarbor | |||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||
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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.
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