Surf Forecasts:
Cunns surf forecast from 17 Jul 2026:
- Best quality surf: Thursday 23 Jul, 3AM (local time) - 5ft (1.6m), 15s period, SW swell with cross-offshore winds.
- Most powerful swell: Thursday 23 Jul, 6AM (local time) - 6ft (1.8m), 14s period, SW swell with 1,307 kJ wave energy.
- Next surfable swell (1★+): Monday 20 Jul, 6PM (local time) - 3.5ft (1.1m), 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 1.1m and 14s 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 1.8m 14s and forecast to arrive on Thursday (Jul 23) at 6AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 4s period and expected on Wednesday (Jul 22) at 6PM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Mon 20th Jul) | 3.5ft (1.1m) 14s |
| Best Surf | 3AM (Thu 23rd Jul) | 5ft (1.6m) 15s |
| Most Powerful | 6AM (Thu 23rd Jul) | 6ft (1.8m) 14s |
Table - best surf conditions forecast for Cunns over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what Cunns has got cooking for us over the next couple of weeks.
Right off the bat, we’re looking at a pretty quiet start. The first several days are a write-off for any decent waves. We’ve got a mix of onshore winds and choppy conditions that are just not doing us any favours. The swell is small and the wind is messy, so you might as well leave the board in the car for the first week. There’s a long gap with no real recommendations until we get to the end of the month.
Now, the first real standout that’s got my heart pumping a little is Thursday the 23rd of July. This is the one to circle on the calendar. We’ve got a solid 6 ft swell from the southwest, and the wind is swinging cross-offshore. That’s clean surf, no question about it. The combined energy is strong at 1163, so there’s some proper push behind it. This is going to be a good session for the experienced crew. The crowd factor here says "sometimes", so you might have a few others out, but with clean conditions like that, it’s worth it.
The real monster, though, the one that’s got me proper excited, is Thursday the 30th of July. This is a long way out, so keep an eye on it, but if it holds, we are in for a treat. We’re looking at 10 ft of southwest swell with a period of 14 seconds. That’s a proper groundswell. The energy is massive, clocking in at 3341, and the wind is forecast to be glassy in the morning. That’s about as good as it gets for a reef break like Cunns. It’s a long-period swell, which means it’ll have real power and shape, but it’s a reef, so it should handle it well. This is expert territory at this size, no doubt. If you’ve got the skills, this is the session to be waiting for.
The following day, Friday the 31st, still has some decent size at 6 ft, but the wind is a fresh cross-offshore, which is still clean, but the energy is dropping. Still a solid option for the weekend warriors.
Overall, it’s a slow start, but the second week has some real potential. Keep your eyes on that Thursday the 30th. That’s the one.
Rusty.
Short Range ForecastMostly dry. Warm (max 20°C on Sun afternoon, min 13°C on Sat morning). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 2mm), mostly falling on Wed night. Very mild (max 18°C on Mon night, min 13°C on Wed night). Wind will be generally light. | ||||||||||||||||||
Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | ||||||||||||||
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 14 | SW 13 | SW 13 | SW 13 | SW 19 | SW 18 | SW 16 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 | SW 12 | SW 14 | SW 13 | SW 16 | SW 14 | SW 14 | SW 14 |
Wave Graph  | |||||||||||||||||||
 kJ | 350 | 215 | 178 | 132 | 133 | 370 | 587 | 566 | 466 | 565 | 437 | 357 | 277 | 127 | 290 | 853 | 1163 | 947 | 917 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-on | cross | cross | cross-on | cross | cross-on | on | cross | cross-on | cross | cross-off | cross | cross | cross-off | cross-off | cross-off | glassy |
High Tide | 1:49AM0.83m | 2:05PM1.17m | 2:13AM0.89m | 2:16PM1.10m | 2:41AM0.91m | 2:26PM1.04m | 3:13AM0.90m | 2:35PM0.96m | 3:48AM0.86m | 2:35PM0.87m | 4:33AM0.79m | 2:02PM0.79m | |||||||
Low Tide | 7:34AM0.15m | 8:28PM0.21m | 7:58AM0.22m | 8:40PM0.17m | 8:22AM0.31m | 8:56PM0.16m | 8:45AM0.42m | 9:13PM0.18m | 9:06AM0.53m | 9:29PM0.23m | 9:12AM0.65m | 9:34PM0.31m | |||||||
 |  | | | | |  |  | |  | | | | | |  |  | | | |
 | — | 7:35 | — | — | 7:35 | — | — | 7:35 | — | — | 7:33 | — | — | 7:33 | — | — | 7:33 | — | — |
 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:53 | — | — | 5:54 | — | — | 5:54 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — | — |
Temp °C | 17 | 16 | 19 | 18 | 17 | 20 | 19 | 17 | 19 | 18 | 17 | 17 | 16 | 16 | 15 | 14 | 14 | 14 | 13 |
Feels °C | 11 | 10 | 13 | 13 | 11 | 16 | 15 | 12 | 16 | 15 | 14 | 13 | 13 | 14 | 12 | 12 | 11 | 10 | 11 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 13 | SW 13 | SW 13 | SW 12 | SW 18 | SW 16 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 | SW 12 | SW 11 | SW 13 | SW 16 | SW 14 | SW 14 | SW 14 |
| kJ | 350 | 215 | 178 | 132 | 71 | 370 | 587 | 566 | 466 | 565 | 437 | 357 | 277 | 116 | 290 | 853 | 1163 | 947 | 917 |
Swell 2 Height (m) Direction Period (s) | — | — | — | SW 21 | SW 19 | SW 13 | S 10 | S 10 | WNW 4 | — | SE 9 | — | — | SW 14 | — | — | — | — | — |
| kJ | — | — | — | 18 | 133 | 85 | 8 | 2 | 1 | — | 3 | — | — | 127 | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | WSW 15 | NNW 4 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | 21 | 12 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | N 3 | NNW 3 | NNE 2 | N 3 | NW 4 | — | NNW 3 | — | — | N 3 | SW 13 | SW 12 | SW 3 | SSW 3 | — | — | — | — |
| kJ | — | 3 | 2 | 1 | 8 | 3 | — | 3 | — | — | 1 | 58 | 23 | 3 | 4 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 178 | 0 | 401 | 401 | 0 | 178 | 1 | 0 | 0 | 178 | 0 | 401 | 491 | 0 | 0 | 491 | 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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