
Surf Forecasts:
Cunns surf forecast from 7 Aug 2026:
- Best quality surf: Friday 7 Aug, 9PM (local time) - 5ft (1.5m), 17s period, SW swell with cross-offshore winds.
- Most powerful swell: Monday 10 Aug, 9AM (local time) - 11ft (3.5m), 17s period, SW swell with 6,255 kJ wave energy.
- Next surfable swell (1★+): Friday 7 Aug, 9PM (local time) - 5ft (1.5m), 17s 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 07) at 9PM. The primary swell is predicted to be 1.5m and 17s 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 3.5m 17s and forecast to arrive on Monday (Aug 10) at 9AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 2s period and expected on Friday (Aug 07) at 9PM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Fri 7th Aug) | 5ft (1.5m) 17s |
| Best Surf | 9PM (Fri 7th Aug) | 5ft (1.5m) 17s |
| Most Powerful | 9AM (Mon 10th Aug) | 11ft (3.5m) 17s |
Table - best surf conditions forecast for Cunns over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s have a look at what’s on the cards for the coming days.
The first bit of this outlook is a bit of a letdown, honestly. We’ve got a big gap of nothing much happening for the first few days, with the few spots that do show swell getting torn up by the wind. The first real chance to wet a line comes on Saturday the 10th, but it’s a tricky one.
Cunns is the only break offering anything, and it’s a real mixed bag. This is a reef setup, and it’s inconsistent, so you can’t just rock up and expect a wave. It’s exposed to the southwest, and the water temp is sitting at 60°, which is about average for this time of year.
The first standout is Monday morning, August 10th. We’ve got a solid 12ft SW groundswell, and the combined energy reading is a massive 10137, so there’s a heap of juice in the water. The period is 17 seconds, which is really long, meaning the waves will be powerful and have that nice, long wait between sets. The wind is light offshore from the west, which is perfect for cleaning the faces up. That said, 12ft is big – only for experienced surfers. The long period will make it break a bit straight at the take-off, but on a reef like Cunns, it should hold some shape.
The next window is Saturday, August 15th. The swell drops to a more manageable 6ft from the SW, with a period of 16 seconds. The combined energy is still solid at 1675. The wind is a moderate offshore from the east, which is a major positive for clean, lined-up waves. The forecast says “excellent surf conditions for experienced surfers.” This is your best bet if you’re looking for a clean, powerful session without the frightening size of the Monday. The moderate breeze will keep the surface clean, and the offshore wind will hold the faces up.
Sunday, August 16th and Monday, August 17th are worth a mention if you’re after a smaller, cleaner wave. The swell is down to about 4ft but the wind is light and cross-offshore, keeping the surface clean. The combined energy is low, around 520-634, so it’s not going to be punchy, but it’ll be fun for a longboard or a fish.
After that, it’s a bit of a write-off. From Wednesday the 19th onwards, the wind picks up from the north and turns cross-shore or cross-onshore, making a mess of things. The swell is still there but the conditions are just not worth it.
The real standout is Monday morning, August 10th for the sheer power, but Saturday, August 15th is the best all-rounder for a clean, strong session. That’s your pick.
Rusty.
Short Range ForecastHeavy rain (total 33mm), heaviest during Sun morning. Warm (max 20°C on Fri afternoon, min 10°C on Sat night). Winds increasing (light winds from the ENE on Fri night, gales from the W by Sat night). | Days 5-7 Weather SummaryLight rain (total 5mm), mostly falling on Tue night. Very mild (max 16°C on Mon afternoon, min 10°C on Tue afternoon). Winds decreasing (near gales from the W on Tue afternoon, light winds from the SW by Thu morning). | |||||||||||||||||||
Fri 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | ||||||||||||||
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 17 | SW 16 | SW 16 | SW 15 | SW 14 | WSW 10 | WSW 10 | SW 13 | SW 17 | SW 16 | SW 16 | SW 14 | WSW 8 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 15 | SW 15 |
Wave Graph | ||||||||||||||||||||
1383 | 1137 | 964 | 856 | 676 | 1808 | 1939 | 2800 | 6255 | 2475 | 1384 | 598 | 1027 | 5374 | 5082 | 5018 | 3438 | 2963 | 2502 | 1760 | |
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-on | cross-on | cross-on | on | on | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on |
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 | ||||||||
Low Tide | 8:14PM0.26m | 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 | ||||||||
— | — | 7:22 | — | — | 7:20 | — | — | 7:20 | — | — | 7:18 | — | — | 7:18 | — | — | 7:16 | — | — | |
6:05 | — | — | 6:05 | — | — | 6:06 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:08 | — | |
mm | 2 | 2 | 1 | 5 | 9 | 11 | 3 | — | — | — | — | — | 1 | 4 | — | — | — | — | — | — |
Temp °C | 20 | 17 | 17 | 17 | 15 | 13 | 14 | 13 | 14 | 16 | 16 | 14 | 12 | 13 | 14 | 14 | 14 | 15 | 15 | 16 |
Feels °C | 16 | 13 | 12 | 12 | 10 | 2 | 3 | 2 | 10 | 10 | 11 | 4 | -1 | 3 | 6 | 7 | 11 | 12 | 12 | 14 |
Swell 1 Height (m) Direction Period (s) | SW 17 | SW 16 | SW 16 | SW 15 | SW 14 | — | — | — | SW 17 | SW 16 | SW 16 | SW 14 | — | — | — | — | — | SW 16 | SW 15 | SW 15 |
1383 | 1137 | 964 | 856 | 676 | — | — | — | 6255 | 2475 | 1384 | 598 | — | — | — | — | — | 2963 | 2502 | 1760 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | NW 4 | WNW 4 | WSW 10 | WSW 10 | SW 13 | SW 17 | — | NNW 4 | NW 5 | WSW 8 | SW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | — |
— | — | — | 7 | 42 | 1808 | 1939 | 2800 | 3882 | — | 14 | 119 | 1027 | 5374 | 5082 | 5018 | 3438 | 63 | 61 | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 0 | 401 | 401 | 564 | 564 | 564 | 548 | 1111 | 1228 | 510 | 564 | 1227 | 1228 | 648 | 1229 | 1344 | 648 | 1219 | 648 | 132 |
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.











