
Surf Forecasts:
Cunns surf forecast from 20 Jul 2026:
- Best quality surf: Friday 24 Jul, 3AM (local time) - 6ft (1.8m), 15s period, SW swell with offshore winds.
- Most powerful swell: Thursday 23 Jul, 3PM (local time) - 6.5ft (2.0m), 15s period, SW swell with 1,715 kJ wave energy.
- Next surfable swell (1★+): Monday 20 Jul, 6PM (local time) - 4.5ft (1.3m), 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 Monday (Jul 20) at 6PM. The primary swell is predicted to be 1.3m and 14s 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 2.0m 15s and forecast to arrive on Thursday (Jul 23) at 3PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.2m 2s period and expected on Tuesday (Jul 21) at 3AM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Mon 20th Jul) | 4.5ft (1.3m) 14s |
| Best Surf | 3AM (Fri 24th Jul) | 6ft (1.8m) 15s |
| Most Powerful | 3PM (Thu 23rd Jul) | 6.5ft (2.0m) 15s |
Table - best surf conditions forecast for Cunns over the next 16 days.
The Lowdown
Righto, grab a coffee and settle in, I’m gonna run you through the next couple of weeks for Cunns. This is a tricky stretch, so don’t get too excited just yet.
The first few days, from Monday the 20th through to Wednesday the 22nd, are pretty much a write-off. The wind is either cross-on or cross, and the surf is just plain ugly. The swell is there, but it’s messy and chopped. The combined energy is moderate (575) but it’s just not clean. You’ll be fighting the wind more than the wave. The water temperature is 61°, which is about average for this time of year, so nothing unusual there.
Things start to get a bit more interesting on Thursday the 23rd. The wind swings cross-off, and the swell bumps up to 7ft from the SW, with a period of 14-15 seconds. The combined energy is strong (1640 to 1772), but the surf is still marginal, maybe a bit tricky with the tide. It’s a decent option for experienced surfers who don’t mind a bit of a challenge.
Now, Friday the 24th is the first real standout. The morning looks clean with a light easterly breeze, a solid 6ft SW swell (15-second period), and combined energy of 1212. The water is still clean. This is good, solid, surfable stuff. The crowd factor is “sometimes” at Cunns, so you might not have it all to yourself, but it’s worth the paddle.
The following week gets a bit weird. From Saturday the 25th to Monday the 27th, it’s back to messy, marginal conditions. Not worth the drive.
Then, there’s a real gem on Tuesday the 28th. The morning is glassy, with a 3ft SW swell and a very long 17-second period. The combined energy is moderate (563), but that glassy wind and long period mean the waves will be lined up and clean. This is a classic, early-morning session for a keen surfer. The afternoon is a bit more cross, but still okay.
The best of the whole outlook, though, is Wednesday the 29th. The afternoon session is glassy, with a 6ft SW swell and a 15-second period. The combined energy is a massive 2610, which is strong. This is powerful, clean, and set to be an absolute ripper. It’s only for experienced surfers, as it’s over 5ft, but for those who can handle it, it’s the pick of the bunch.
The rest of the week into early August gets messy again. There’s a lot of swell, but the wind is strong and cross, making it a challenge. The combined energy is huge (over 3000 at times), but the quality is poor. The swell on the 1st of August is 10ft with a strong cross-on wind – that’s only for experts, and even then it’s going to be a mess. The setup at Cunns, being a reef, might offer some shelter, but the wind is the enemy.
So, to sum it up: If you’re looking for a window, hit Friday the 24th morning, Tuesday the 28th morning, or the absolute best, Wednesday the 29th afternoon. The rest is a gamble.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Wed morning. Very mild (max 19°C on Mon afternoon, min 12°C on Wed night). Winds increasing (light winds from the ENE on Mon afternoon, fresh winds from the SSW by Wed afternoon). | Days 4-6 Weather SummaryMostly dry. Very mild (max 13°C on Thu morning, min 11°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | |||||||||||||||
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 15 | SW 15 | SW 14 | SW 13 | SW 13 | SW 12 | SW 14 | SW 14 | SW 14 | SW 14 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 |
Wave Graph | |||||||||||||||||||||
566 | 623 | 595 | 431 | 357 | 240 | 121 | 722 | 1203 | 1559 | 1715 | 1650 | 1212 | 992 | 821 | 651 | 543 | 494 | 409 | 309 | 259 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | cross-on | cross-on | cross | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | cross | cross | cross-off |
High Tide | 2:26PM1.04m | 3:13AM0.90m | 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 | |||||||||
Low Tide | 8:56PM0.16m | 8:45AM0.42m | 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 | ||||||||||
7:35 | — | — | 7:33 | — | — | 7:33 | — | — | 7:33 | — | — | 7:33 | — | — | 7:31 | — | — | 7:31 | — | — | |
— | 5:52 | — | — | 5:53 | — | — | 5:54 | — | — | 5:54 | — | — | 5:55 | — | — | 5:55 | — | — | 5:57 | — | |
mm | — | — | — | — | — | — | 1 | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 19 | 19 | 17 | 17 | 16 | 14 | 14 | 14 | 13 | 13 | 13 | 12 | 13 | 13 | 12 | 13 | 13 | 14 | 14 | 14 |
Feels °C | 12 | 16 | 15 | 13 | 14 | 13 | 11 | 8 | 10 | 7 | 7 | 7 | 9 | 9 | 9 | 9 | 8 | 11 | 12 | 11 | 11 |
Swell 1 Height (m) Direction Period (s) | SW 15 | SW 15 | SW 14 | SW 13 | SW 13 | SW 12 | SW 11 | — | — | SW 14 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 |
566 | 623 | 595 | 431 | 357 | 240 | 96 | — | — | 1559 | 1715 | 1650 | 1212 | 992 | 821 | 651 | 543 | 494 | 409 | 309 | 259 | |
Swell 2 Height (m) Direction Period (s) | S 10 | — | — | S 9 | — | — | SW 14 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
2 | — | — | 2 | — | — | 121 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | NNW 3 | — | — | NNW 2 | — | SW 12 | SW 4 | SW 14 | SW 14 | SSW 14 | SW 15 | SSW 15 | — | — | — | — | SW 13 | — | — | — | — |
7 | — | — | 1 | — | 23 | 9 | 722 | 1203 | 81 | 57 | 93 | — | — | — | — | 44 | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 178 | 0 | 0 | 0 | 178 | 510 | 1227 | 1236 | 1045 | 491 | 552 | 132 | 0 | 0 | 0 | 940 | 1035 | 649 | 1061 | 940 | 0 |
Best forecast wave conditions in Nullarbor | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
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.










