
Surf Forecasts:
Cunns surf forecast from 2 Aug 2026:
- Best quality surf: Monday 3 Aug, 6AM (local time) - 6ft (1.8m), 15s period, SW swell with cross-offshore winds.
- Most powerful swell: Sunday 9 Aug, 9PM (local time) - 11ft (3.5m), 17s period, SW swell with 7,178 kJ wave energy.
- Next surfable swell (1★+): Monday 3 Aug, 6AM (local time) - 6ft (1.8m), 15s 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 Monday (Aug 03) at 6AM. The primary swell is predicted to be 1.8m and 15s period with a secondary swell of 0.4m and 15s. 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 3.5m 17s and forecast to arrive on Sunday (Aug 09) at 9PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Wednesday (Aug 05) at 12AM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Mon 3rd Aug) | 6ft (1.8m) 15s |
| Best Surf | 6AM (Mon 3rd Aug) | 6ft (1.8m) 15s |
| Most Powerful | 9PM (Sun 9th Aug) | 11ft (3.5m) 17s |
Table - best surf conditions forecast for Cunns over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a good look at what’s coming our way.
We’ve got a solid run of swell for Cunns, this exposed reef setup that really loves a good SW groundswell. The whole period is a bit of a mixed bag wind-wise, but there are a couple of absolute gems in there if you pick your moments.
The action kicks off on Monday, the 3rd of August. It’s a proper early start with glassy conditions and a clean 6ft SW swell rolling in at 14 seconds. The combined energy is pumping at 1273, so there’s some real grunt in the water. This is excellent surf, but at that size and with that power, it’s strictly for the experienced crew. The water temp is about average for this time of year, so no surprises there.
Monday afternoon stays clean with a cross-off breeze and a 5ft SW swell, still packing that 14-second period. Still a strong 1121 energy reading.
Tuesday the 4th is a bit of a letdown. The morning has a stiff NE cross-off wind that chops things up, with a smaller 4ft SW swell. The afternoon turns glassy again, but the swell drops to 3ft. It’s clean but small. Wednesday is much the same—messy cross-shore winds and small, inconsistent swell.
Now, Thursday the 6th is where it gets interesting again. The morning has a clean offshore breeze from the SE and a 4ft SW swell with a 16-second period. The energy is moderate at 663, but the conditions are good. The real standout is Thursday afternoon: a clean 5ft SW swell, 16-second period, with a cross-off breeze. The energy jumps to 1097, and the surf is excellent for experienced surfers. This is a cracker session.
Friday the 7th is a write-off. A howling N wind at 22 mph turns the 6ft SW swell into a bumpy mess. Saturday the 8th and Sunday the 9th are also poor, with strong cross-onshore winds and increasing swell up to 8ft. The energy is huge—3473 and 3307—but the wind rips it apart. This is more of a kite-surfing show than a paddle session.
The following week is a slow burn. Monday the 10th and Tuesday the 11th are marginal with messy winds and lumpy conditions. However, Tuesday afternoon the 11th turns clean with a cross-off breeze and a 5ft SW swell at 14 seconds. The energy is 1041, and it’s excellent for experienced surfers again.
The best of the whole forecast, without a doubt, is Wednesday the 12th of August. The afternoon delivers a 10ft SW swell with a 16-second period, glassy conditions with a light offshore SE breeze, and a massive combined energy of 4382. This is a serious, powerful groundswell. At 10ft, it’s expert-only territory, and this reef is going to be handling that energy beautifully. The long period means long lulls between sets, but the waves will be big, clean, and well-shaped. This is a proper day to clear your diary.
The rest of the period stays on the bigger side, with solid 7ft to 10ft SW swells, but the wind is often cross or cross-onshore. Thursday the 13th afternoon has a clean offshore SE breeze and a 7ft SW swell—great for experts. Friday the 14th afternoon is clean with a cross-off breeze and a 6ft SW swell. The weekend of the 15th and 16th sees big swell again, but the wind is a problem. The 18th of August morning looks promising with a clean offshore ESE wind and a 6ft WSW swell, packing 1867 energy.
So, to sum it up: the standouts are Thursday afternoon the 6th for a solid, clean session, and the absolute king is Wednesday afternoon the 12th of August for a big, powerful, glassy day at the reef. Get on it.
Rusty.
Short Range ForecastMostly dry. Very mild (max 19°C on Wed afternoon, min 10°C on Tue morning). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 4mm), mostly falling on Fri night. Warm (max 20°C on Fri night, min 14°C on Wed night). Winds increasing (light winds from the SSE on Thu morning, strong winds from the WSW by Sat afternoon). | ||||||||||||||||||
Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | ||||||||||||||
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 14 | SW 14 | SW 13 | SW 12 | SW 15 | SW 15 | SW 19 | SW 18 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 17 | SW 16 | SW 16 | WSW 16 | WSW 15 |
Wave Graph | |||||||||||||||||||
1856 | 1273 | 990 | 600 | 319 | 258 | 335 | 361 | 694 | 589 | 643 | 1027 | 1492 | 1492 | 1238 | 1065 | 1001 | 1851 | 2126 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | glassy | cross-off | cross-off | cross-off | glassy | cross-off | cross | cross-on | cross-off | off | cross-off | cross-off | cross | cross | cross-on | cross-on | cross-on | cross-on |
High Tide | 2:21AM1.04m | 2:27PM1.22m | 2:48AM1.04m | 2:45PM1.07m | 3:17AM1.01m | 2:52PM0.90m | 3:49AM0.95m | 2:24PM0.75m | 4:31AM0.85m | 11:17AM0.96m | 2:07AM0.58m | ||||||||
Low Tide | 8:13AM0.09m | 8:45PM0.08m | 8:43AM0.19m | 9:00PM0.13m | 9:12AM0.35m | 9:08PM0.19m | 9:37AM0.53m | 8:59PM0.25m | 9:18AM0.74m | 8:14PM0.26m | 7:25PM0.20m | ||||||||
— | 7:26 | — | — | 7:24 | — | — | 7:24 | — | — | 7:22 | — | — | 7:22 | — | — | 7:22 | — | — | |
6:00 | — | 6:01 | — | — | 6:02 | — | — | 6:02 | — | — | 6:04 | — | — | 6:05 | — | — | 6:05 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 2 | — | — |
Temp °C | 13 | 14 | 14 | 13 | 15 | 18 | 17 | 16 | 19 | 15 | 16 | 17 | 17 | 17 | 19 | 20 | 18 | 18 | 14 |
Feels °C | 9 | 12 | 10 | 9 | 11 | 13 | 11 | 11 | 16 | 12 | 15 | 15 | 12 | 9 | 16 | 17 | 13 | 11 | 5 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 14 | SW 14 | SW 13 | SW 12 | SW 15 | SW 15 | SW 15 | SW 18 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 17 | SW 16 | SW 16 | SW 16 | — |
1856 | 1273 | 990 | 600 | 319 | 258 | 318 | 255 | 694 | 589 | 643 | 1027 | 1492 | 1492 | 1238 | 1065 | 1001 | 1622 | — | |
Swell 2 Height (m) Direction Period (s) | — | — | SW 18 | SW 17 | SW 15 | SW 10 | SW 21 | SW 19 | SSW 9 | — | S 8 | SW 4 | — | — | — | — | — | — | — |
— | — | 81 | 181 | 233 | 106 | 150 | 361 | 16 | — | 20 | 3 | — | — | — | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | SW 20 | S 9 | — | — | — | S 8 | — | — | — | — | — | — | — |
— | — | — | — | — | — | 335 | 64 | — | — | — | 1 | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | SW 16 | — | SW 14 | — | NE 3 | — | NE 3 | N 3 | N 4 | SSE 8 | — | SW 16 | — | N 3 | NW 4 | — | NW 5 | WSW 16 | WSW 15 |
62 | — | 50 | — | 2 | — | 6 | 5 | 6 | 13 | — | 66 | — | 3 | 3 | — | 53 | 1851 | 2126 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 940 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 178 | 0 | 0 | 0 | 0 | 564 | 0 | 553 | 652 | 1227 | 1287 |
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.











