
Surf Forecasts:
Cunns surf forecast from 25 Jul 2026:
- Best quality surf: Wednesday 29 Jul, 6PM (local time) - 6.5ft (2.0m), 14s period, SW swell with cross-offshore winds.
- Most powerful swell: Wednesday 29 Jul, 3AM (local time) - 11ft (3.5m), 17s period, SSW swell with 7,094 kJ wave energy.
- Next surfable swell (1★+): Wednesday 29 Jul, 6PM (local time) - 6.5ft (2.0m), 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 Wednesday (Jul 29) at 6PM. The primary swell is predicted to be 2.0m and 14s period with a secondary swell of 0.4m and 20s. Another secondary swell of 0.4m and 14s is also forecast. 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 Wednesday (Jul 29) at 3AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Friday (Jul 31) at 6AM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Wed 29th Jul) | 6.5ft (2.0m) 14s |
| Best Surf | 6PM (Wed 29th Jul) | 6.5ft (2.0m) 14s |
| Most Powerful | 3AM (Wed 29th Jul) | 11ft (3.5m) 17s |
Table - best surf conditions forecast for Cunns over the next 16 days.
The Lowdown
Alright, this is Rusty, and I’m looking at the next 16 days for Cunns. Let’s get into it.
Alright, so we’ve got a bit of a wait on our hands. The first real surf on offer isn’t until the morning of Sunday, July 26th, and even then, it’s a bit of a tease. We’re looking at a 4 ft SW swell with a 12-second period, which is a decent groundswell. The issue is the wind is a light onshore breeze from the NW, so it’s not going to be perfect. The combined energy is pretty weak at 293, so it’s not a day to get too excited. It’s a marginal call, but it’s the first thing we’ve got.
Monday, July 27th, is a washout. The swell drops to 2 ft, and we’ve got a fresh 35 km/h cross-onshore wind from the NNW. That’s just going to be a lumpy, messy mess. Not worth paddling out for.
Now, Tuesday, July 28th, the swell comes back up, but it’s not pretty. We’re seeing 7 ft from the SW with a 14-second period, but the wind is a fresh 30 km/h cross-shore from the SW. The combined energy jumps to 1624, so there’s power, but the wind is going to make it a lumpy, cross-chop mess. The score is low, and it’s still a marginal forecast. This one’s for the experts only, and even then, it’s going to be a battle.
Wednesday, July 29th, is where things start to get interesting. The swell is 8 ft from the SW with a 16-second period – that’s some serious, long-period groundswell. The combined energy is a strong 2859. The wind is a moderate 20 km/h cross-offshore from the S, which is clean. This is a big, powerful swell, so it’s going to be a proper reef-break session, but it’s only for the experienced crew. The period is long, so expect long lulls between sets, but when they come, they’ll have plenty of push.
Thursday, July 30th, is the standout. The swell drops to a more manageable 5 ft, still from the SW, with a 13-second period. The combined energy is a solid 732. The magic is the wind: a slight 5 km/h cross-offshore from the SE in the morning, and a gentle 15 km/h cross-offshore in the afternoon. The forecast says “expect very good surf conditions,” and I’m not going to argue. This is clean, lined-up, and the best of the window. The water temperature is about average for the time of year, so no surprises there.
The rest of the first week is a letdown. Friday, July 31st, and Saturday, August 1st, are blown out with strong cross-shore winds. The swell is still there, but the wind ruins it. The combined energy is moderate, but it’s not surfable.
The second week is a bit of a mixed bag, but there’s a glimmer. Sunday, August 2nd, through Tuesday, August 4th, is mostly a write-off with onshore winds and messy conditions. The swell is solid, over 7 ft for a few days, but the wind is just wrong. The combined energy is in the 1000-1700 range, so there’s plenty of power, but it’s all for the kitesurfers, not us.
Wednesday, August 5th, is another small window that looks promising. The swell is 5 ft from the SW with a 15-second period, which is a nice long period. The wind is a light 10 km/h cross-shore from the NNE in the morning, but by the afternoon it shifts to a light 10 km/h cross-offshore from the SE. The combined energy is 1020, and the afternoon is clean. It’s not the best of the forecast, but it’s a solid option.
The last few days, from Thursday, August 6th, to Sunday, August 9th, are a mess. The wind is strong and cross-shore or onshore, and the swell is all over the place. The combined energy is high, but it’s unsurfable. Monday, August 10th, is a complete no-go with a near-gale cross-onshore wind and a 8 ft swell. That’s a big, blown-out mess.
Bottom line: The best day is Thursday, July 30th at Cunns. It’s the cleanest, most manageable swell with light, offshore winds. That’s your session. The backup is Wednesday, August 5th, in the afternoon. Everything else is a gamble or a slog.
Stay safe, and I’ll see you out there.
Rusty
Short Range ForecastSome drizzle, heaviest during Mon night. Very mild (max 17°C on Sun afternoon, min 12°C on Sat night). Winds increasing (calm on Sat night, fresh winds from the NW by Mon morning). | Days 5-7 Weather SummaryMostly dry. Very mild (max 17°C on Fri afternoon, min 12°C on Tue night). Winds decreasing (fresh winds from the SSW on Tue night, calm by Thu morning). | ||||||||||||||||||
Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | ||||||||||||||
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 12 | SW 12 | SW 12 | SW 12 | SW 14 | SW 14 | SW 12 | SW 14 | SW 15 | SW 15 | SW 16 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 20 | SW 18 |
Wave Graph | |||||||||||||||||||
373 | 293 | 303 | 263 | 95 | 238 | 1148 | 1624 | 1526 | 2233 | 2796 | 1863 | 1116 | 732 | 600 | 380 | 290 | 277 | 442 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | on | on | cross-on | cross-on | on | on | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross |
High Tide | 00:21AM0.53m | 11:34AM1.07m | 00:05AM0.60m | 11:55AM1.19m | 00:14AM0.69m | 12:17PM1.29m | 00:29AM0.76m | 12:39PM1.36m | 00:47AM0.84m | 1:00PM1.41m | 1:08AM0.91m | 1:22PM1.42m | 1:30AM0.97m | ||||||
Low Tide | 4:11AM0.45m | 6:49PM0.30m | 4:58AM0.34m | 6:51PM0.22m | 5:30AM0.23m | 7:02PM0.16m | 5:57AM0.13m | 7:16PM0.11m | 6:24AM0.06m | 7:33PM0.07m | 6:50AM0.01m | 7:50PM0.04m | |||||||
— | 7:31 | — | — | 7:31 | — | — | 7:30 | — | — | 7:30 | — | — | 7:28 | — | — | 7:28 | — | — | |
— | — | 5:57 | — | — | 5:58 | — | — | 5:58 | — | — | 5:59 | — | — | 6:00 | — | — | 6:00 | — | |
mm | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 14 | 17 | 17 | 17 | 17 | 14 | 14 | 14 | 13 | 12 | 13 | 13 | 12 | 13 | 12 | 15 | 17 | 16 |
Feels °C | 11 | 11 | 14 | 13 | 8 | 9 | 10 | 7 | 7 | 6 | 7 | 8 | 9 | 9 | 9 | 8 | 9 | 12 | 10 |
Swell 1 Height (m) Direction Period (s) | SW 12 | SW 12 | SW 12 | SW 12 | SW 11 | SW 14 | SW 12 | — | — | — | SW 16 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 14 | SW 18 |
373 | 293 | 303 | 263 | 73 | 238 | 1148 | — | — | — | 2796 | 1863 | 1116 | 732 | 600 | 380 | 290 | 277 | 442 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | SW 16 | SW 14 | S 10 | S 10 | — | — | — | — | — | — | — | S 24 | SW 23 | SW 21 | SW 20 | SW 13 |
— | — | — | 10 | 95 | 2 | 2 | — | — | — | — | — | — | — | 11 | 21 | 71 | 239 | 134 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | NNW 3 | NW 5 | W 7 | WSW 12 | SW 14 | SW 15 | SW 15 | SW 16 | — | — | — | — | — | NNE 3 | — | NNE 3 |
— | — | — | 3 | 77 | 238 | 759 | 1624 | 1526 | 2233 | 63 | — | — | — | — | — | 3 | — | 3 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 178 | 649 | 978 | 648 | 1435 | 1470 | 940 | 491 | 1035 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Nullarbor | |||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||
Header Global | |||||||||||||||||||
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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.










