Surf Forecasts:
Cunns surf forecast from 8 Aug 2026:
- Best quality surf: Friday 14 Aug, 12AM (local time) - 7ft (2.1m), 15s period, SW swell with glassy winds.
- Most powerful swell: Wednesday 12 Aug, 3PM (local time) - 10ft (3.0m), 17s period, SW swell with 5,495 kJ wave energy.
- Next surfable swell (1★+): Friday 14 Aug, 12AM (local time) - 7ft (2.1m), 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 Friday (Aug 14) at 12AM. The primary swell is predicted to be 2.1m and 15s period. The wind is predicted to be glassy 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 Wednesday (Aug 12) at 3PM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Fri 14th Aug) | 7ft (2.1m) 15s |
| Best Surf | 12AM (Fri 14th Aug) | 7ft (2.1m) 15s |
| Most Powerful | 3PM (Wed 12th Aug) | 10ft (3.0m) 17s |
Table - best surf conditions forecast for Cunns over the next 16 days.
The Lowdown
Alright, Rusty here again. Let’s talk about the same stretch in feet and miles per hour.
The first few days are a total bust. Strong cross-onshore winds and messy surf mean you’re better off staying on the beach. The early part of the week is a no-go zone.
The first real opportunity hits on Friday, August 14th. The wind goes dead calm in the morning – glassy conditions. We’ve got a solid 7ft SW groundswell with a long 17-second period. That’s a lot of energy (2386) in the water. The waves are going to be powerful and well-shaped. This is the standout of the whole forecast. The water is 60°, which is about average for the season.
The swell backs down through the weekend, but the wind stays clean. Saturday morning, August 15th, still has a nice 6ft with clean offshore breezes. By Sunday the 16th, it’s down to 4ft but still clean.
Mid-week gets quiet again. Then, on Friday, August 21st, the late afternoon shows promise with a 5ft SW swell and a 16-second period, with the wind becoming very light. The conditions are called excellent for experienced surfers. That’s another one to keep an eye on.
So, the first week has a couple of epic windows, especially that Friday the 14th. The second week has some smaller, cleaner days, but nothing that matches that first big pulse. Be patient and pick your days.
Rusty.
Short Range ForecastHeavy rain (total 23mm), heaviest during Sun morning. Warm (max 20°C on Sat morning, min 11°C on Sat night). Winds increasing (light winds from the NNW on Sat morning, gales from the WSW by Sun afternoon). | Days 4-6 Weather SummaryLight rain (total 5mm), mostly falling on Tue afternoon. Very mild (max 17°C on Tue morning, min 11°C on Tue afternoon). Winds decreasing (near gales from the SW on Tue afternoon, calm by Thu night). | ||||||||||||||||||||
Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | |||||||||||||||
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 16 | SW 15 | SW 14 | WSW 9 | WSW 11 | SW 13 | SW 17 | SW 16 | SW 16 | SW 14 | WSW 18 | SW 17 | SW 17 | SW 17 | SW 16 | SW 16 | SW 15 | SW 15 | SW 17 | SW 16 | SW 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1074 | 856 | 676 | 1324 | 2337 | 2796 | 3882 | 2475 | 1155 | 668 | 3510 | 4234 | 4200 | 5495 | 2506 | 2668 | 2208 | 1808 | 2386 | 2220 | 1787 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | glassy | glassy | cross-off | off |
High Tide | 11:17AM0.96m | 2:07AM0.58m | 11:38AM1.14m | 1:00AM0.58m | 12:03PM1.28m | 00:48AM0.63m | 12:27PM1.36m | 00:49AM0.71m | 12:48PM1.38m | 00:57AM0.80m | 1:06PM1.36m | 1:08AM0.91m | 1:19PM1.30m | 1:22AM1.00m | |||||||
Low Tide | 7:25PM0.20m | 4:19AM0.56m | 7:12PM0.14m | 5:06AM0.41m | 7:16PM0.11m | 5:37AM0.27m | 7:23PM0.11m | 6:04AM0.16m | 7:30PM0.12m | 6:29AM0.08m | 7:34PM0.13m | 6:52AM0.05m | 7:37PM0.11m | ||||||||
 |  |  |  | |  | | |  | |  | | | |  |  | | |  | |  | |
 | 7:22 | — | — | 7:20 | — | — | 7:20 | — | — | 7:18 | — | — | 7:18 | — | — | 7:16 | — | — | 7:16 | — | — |
 | — | 6:05 | — | — | 6:06 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:08 | — | — | 6:08 | — |
mm | — | 2 | 5 | 9 | 3 | 4 | — | — | — | — | 5 | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 17 | 15 | 13 | 12 | 13 | 14 | 14 | 13 | 17 | 13 | 14 | 15 | 14 | 14 | 15 | 15 | 16 | 16 | 16 | 16 |
Feels °C | 16 | 12 | 10 | 1 | 0 | 3 | 8 | 9 | 8 | 7 | 3 | 6 | 9 | 8 | 12 | 13 | 12 | 15 | 15 | 14 | 13 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 15 | SW 14 | — | — | — | — | SW 16 | SW 16 | SW 14 | SW 18 | — | — | SW 17 | SW 16 | SW 16 | SW 15 | SW 15 | SW 17 | SW 16 | SW 16 |
| kJ | 1074 | 856 | 676 | — | — | — | — | 2475 | 1155 | 668 | 1652 | — | — | 5495 | 2506 | 2668 | 2208 | 1808 | 2386 | 2220 | 1787 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | S 8 | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | 10 | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | NNW 4 | NW 4 | WSW 9 | WSW 11 | SW 13 | SW 17 | SW 16 | WNW 5 | NW 5 | WSW 18 | SW 17 | SW 17 | SW 17 | SW 16 | — | SW 16 | — | — | — | — |
| kJ | — | 11 | 35 | 1324 | 2337 | 2796 | 3882 | 42 | 32 | 70 | 3510 | 4234 | 4200 | 3554 | 64 | — | 62 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 401 | 553 | 649 | 564 | 500 | 1111 | 1165 | 1457 | 500 | 1227 | 1227 | 1052 | 1229 | 1344 | 649 | 1054 | 648 | 0 | 0 | 0 | 0 |
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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