
Surf Forecasts:
Cunns surf forecast from 21 Jul 2026:
- Best quality surf: Friday 24 Jul, 3AM (local time) - 6ft (1.8m), 15s period, SW swell with cross-offshore winds.
- Most powerful swell: Tuesday 28 Jul, 3PM (local time) - 6ft (1.9m), 16s period, SW swell with 1,738 kJ wave energy.
- Next surfable swell (1★+): Tuesday 21 Jul, 3PM (local time) - 3.5ft (1.1m), 13s 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 Tuesday (Jul 21) at 3PM. The primary swell is predicted to be 1.1m and 13s 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 1.9m 16s and forecast to arrive on Tuesday (Jul 28) at 3PM. Winds are predicted to be cross-offshore at the time the swell arrives.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3PM (Tue 21st Jul) | 3.5ft (1.1m) 13s |
| Best Surf | 3AM (Fri 24th Jul) | 6ft (1.8m) 15s |
| Most Powerful | 3PM (Tue 28th Jul) | 6ft (1.9m) 16s |
Table - best surf conditions forecast for Cunns over the next 16 days.
The Lowdown
Righto, let’s have a look at what’s cookin’ for Cunns over the next couple of weeks.
There’s a bit of a slow start, but the energy builds nicely. The water’s sittin’ at 61°, which is pretty much bang on average for this time of year—nothing out of the ordinary there.
Cunns is a reef set-up, and it’s inconsistent, so you can’t just rock up any time and expect it to be firing. The first sniff of anything worthwhile comes in Tuesday afternoon, the 21st of July. The swell is a clean 4ft from the SW with a nice 13-second period, and the wind goes glassy. That’s the kind of stillness that’ll have the surface lookin’ like a mirror. It’s small, but it’s rideable for a patient surfer.
Wednesday the 22nd is a write-off—cross-chop and messy conditions. Thursday the 23rd sees the swell jump to 7ft from the SW, period 14 seconds, and the wind swings cross-offshore. That’s clean, but at 7ft, it’s gettin’ into the territory where beginners might want to sit it out. The combined energy’s moderate to strong (1696 in the morning, 1733 in the arvo).
Now, the standout window—and I mean the real gem—is Friday the 24th of July. The morning session is absolute magic: 6ft of SW swell, 15-second period, and glassy winds. That’s a beautiful, long-period groundswell rolling in. Given it’s a reef, those long periods will wrap in nicely, but be aware that at a beach break, it can straighten out—here, it’s a solid call. The energy’s strong (1297). The afternoon holds up clean too. This is the best on offer, no question.
The following standouts come on Monday the 27th and Tuesday the 28th. Monday morning has 5ft from the SW, 14 seconds, clean with light cross-off winds. By Monday afternoon, the swell jumps to 7ft (same direction), energy’s very strong (2388), and conditions are still clean. That’s for experienced surfers only. Tuesday the 28th peaks with a 8ft SW swell, 16 seconds, and an afternoon window that’s near-perfect: glassy, cross-off wind, and an energy reading of 3223. That’s a powerful, long-period groundswell—again, best on the reef, but it’s a big wave, so only for the well-prepared.
After that, the surf hangs around in the 3ft to 6ft range but the wind gets messy. The first week of August sees a lot of onshore and cross-onshore winds, with the swell dropping. By Saturday the 1st of August, it’s down to 2ft with strong winds—not worth paddlin’ out.
There’s a gap of a few days with no real recommendations from the 30th of July through to the 2nd of August, but don’t bin it—forecasts can change. Cunns is inconsistent, so a quiet stretch is normal enough.
Overall, hang your hat on Friday the 24th of July for the best mix of size, quality, and glass. Tuesday the 28th is the big-swell standout for the experts.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Wed morning. Very mild (max 19°C on Tue afternoon, min 12°C on Thu night). Winds increasing (calm on Tue afternoon, fresh winds from the SSW by Wed afternoon). | Days 4-6 Weather SummaryMostly dry. Very mild (max 15°C on Sun morning, min 12°C on Fri morning). Wind will be generally light. | ||||||||||||||||||||
Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | |||||||||||||||
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 13 | SW 13 | SW 12 | SW 14 | SW 14 | SSW 15 | SW 14 | SW 15 | SW 15 | SW 15 | SW 15 | SW 14 | SW 13 | SW 13 | SW 12 | SW 11 | SW 11 | SW 11 | WSW 11 | SW 13 | SW 13 |
Wave Graph | |||||||||||||||||||||
431 | 357 | 361 | 261 | 722 | 1714 | 1500 | 1542 | 1716 | 1297 | 1212 | 799 | 552 | 418 | 367 | 283 | 213 | 153 | 523 | 1645 | 699 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | glassy | cross | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | glassy | cross | cross | cross | cross-on | cross | cross-on | cross-on | cross |
High Tide | 2:35PM0.96m | 3:48AM0.86m | 2:35PM0.87m | 4:33AM0.79m | 2:02PM0.79m | 11:56AM0.81m | 11:20AM0.94m | 00:21AM0.53m | 11:34AM1.07m | 00:05AM0.60m | 11:55AM1.19m | 00:14AM0.69m | |||||||||
Low Tide | 9:13PM0.18m | 9:06AM0.53m | 9:29PM0.23m | 9:12AM0.65m | 9:34PM0.31m | 8:49PM0.38m | 7:15PM0.37m | 4:11AM0.45m | 6:49PM0.30m | 4:58AM0.34m | 6:51PM0.22m | ||||||||||
7:33 | — | — | 7:33 | — | — | 7:33 | — | — | 7:33 | — | — | 7:31 | — | — | 7:31 | — | — | 7:31 | — | — | |
— | 5:53 | — | — | 5:54 | — | — | 5:54 | — | — | 5:55 | — | — | 5:55 | — | — | 5:57 | — | — | 5:58 | — | |
mm | — | — | — | 1 | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 |
Temp °C | 18 | 19 | 16 | 14 | 14 | 14 | 13 | 13 | 13 | 12 | 12 | 12 | 14 | 13 | 13 | 15 | 15 | 15 | 17 | 15 | 13 |
Feels °C | 14 | 17 | 13 | 11 | 8 | 10 | 7 | 7 | 8 | 9 | 9 | 9 | 11 | 9 | 11 | 13 | 12 | 12 | 7 | 6 | 5 |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 13 | — | SW 14 | — | SSW 15 | SW 14 | SW 15 | SW 15 | SW 15 | SW 15 | SW 14 | SW 13 | SW 13 | SW 12 | SW 11 | SW 11 | SW 11 | SW 20 | SW 13 | SW 13 |
431 | 357 | — | 261 | — | 1714 | 1500 | 1542 | 1716 | 1297 | 1212 | 799 | 552 | 418 | 367 | 283 | 213 | 153 | 15 | 1645 | 699 | |
Swell 2 Height (m) Direction Period (s) | S 9 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | WSW 15 | SW 16 | — | S 11 | SW 16 |
2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 22 | 9 | — | 2 | 295 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | NW 3 | — | SW 12 | SW 5 | SW 14 | SW 15 | SSW 14 | SSW 15 | — | — | SW 15 | — | — | SW 13 | — | NNW 2 | NW 3 | W 5 | WSW 11 | SW 13 | SW 13 |
2 | — | 361 | 19 | 722 | 924 | 82 | 85 | — | — | 55 | — | — | 42 | — | 1 | 5 | 61 | 523 | 1034 | 59 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 178 | 0 | 510 | 1227 | 1052 | 491 | 1236 | 941 | 153 | 0 | 0 | 0 | 940 | 941 | 0 | 0 | 0 | 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.










