
Surf Forecasts:
Cunns surf forecast from 18 Jul 2026:
- Best quality surf: Thursday 23 Jul, 12PM (local time) - 6ft (1.8m), 14s period, SW swell with offshore winds.
- Most powerful swell: Thursday 23 Jul, 6AM (local time) - 6.5ft (2.0m), 14s period, SW swell with 1,515 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 glassy as the swell arrives.
The most powerful waves expected at Cunns in the next 16 days are 2.0m 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 0.9m 5s period and expected on Wednesday (Jul 22) at 3PM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Mon 20th Jul) | 4.5ft (1.3m) 14s |
| Best Surf | 12PM (Thu 23rd Jul) | 6ft (1.8m) 14s |
| Most Powerful | 6AM (Thu 23rd Jul) | 6.5ft (2.0m) 14s |
Table - best surf conditions forecast for Cunns over the next 16 days.
The Lowdown
Yo, Rusty here. Let's get into it.
Right off the bat, we're looking at a pretty grim stretch for Cunns. This is a super inconsistent reef break that's exposed to the SW. For the first five days, from Saturday the 18th through Wednesday the 23rd, it's mostly a write-off. We've got a mix of cross-on and cross-off winds, small swell under 4 ft, and the water temp is sitting at 61°, which is about average for the time of year. The combined swell energy is weak to moderate (181 to 575), but the quality just isn't there. The wind is a real problem, keeping things choppy and messy. There's a brief window on Wednesday afternoon the 22nd where the wind goes cross-off and it cleans up, but the swell is only 3 ft with a 13-second period, which is marginal. The forecast says "poor surf conditions" or "marginal" for most of this, so don't get your hopes up.
The real standout, the only time this place looks any good, is on Thursday the 23rd. The afternoon session is the best on offer. The swell jumps to 6 ft from the SW, with a 14-second period, and the wind goes offshore out of the SE at 12 mph. The combined energy hits 1251, which is strong. The forecast says "excellent surf conditions for experienced surfers." That's your window. The swell is over 5 ft, so it's getting into the territory where beginners should steer clear. The long period (14 seconds) is a groundswell, and at a reef, that's going to produce some proper, well-shaped waves. It's inconsistent, but when it comes, it'll be worth it. Crowds are possible ("sometimes" is the word), so you might have some company.
Friday the 24th holds some leftovers. The morning is 5 ft with a cross-off wind, but it's marginal. The afternoon on Friday is better: 4 ft, clean, light cross-off breeze. The forecast says "expect very good surf conditions," so that's a solid backup.
After that, it all goes downhill again. From Saturday the 25th through to Thursday the 30th, we're back to poor conditions. The wind is all over the place, mostly cross-on or cross, and the swell is inconsistent. The combined energy spikes up to 2797 on Tuesday the 28th with a 8 ft swell, but the wind is a fresh cross-shore, making it lumpy and messy. The forecast says "marginal" at best, and even then, it's questionable. That's more of a kite-surfing kind of setup than a paddle session.
The second week is a bit of a mixed bag. The end of the month, the 31st of July and the 1st of August, show some promise. The morning of the 31st is small, 2 ft, but the wind is cross-off. The afternoon of the 31st is even better: 2 ft, but the wind is offshore and the period is a very long 21 seconds. That's a proper groundswell, and the combined energy is 474. The forecast says "expect good surf conditions." Then, Saturday the 1st of August is interesting. The morning has 4 ft swell from the SW, a 17-second period, and gentle offshore wind out of the east. The forecast says "expect very good surf conditions." That's a promising call, but it's a week and a half away, so keep an eye on it. The afternoon of the 1st is still clean but drops to a "marginal" rating.
The 2nd of August is a big one, but a mess. 10 ft swell from the SSW, with a 16-second period. The combined energy is a massive 4456. But the wind is a fresh cross-shore, making it lumpy. That's a lot of power, but the wind is going to ruin it. For experts only, and even then, it's a gamble.
So, to sum it up: Thursday the 23rd afternoon is the clear winner. Friday the 24th afternoon is a solid backup. The end of the month and the first of August look promising, but keep your expectations in check. The rest of the time, it's a struggle.
Rusty out.
Short Range ForecastMostly dry. Very mild (max 19°C on Sat afternoon, min 13°C on Sun morning). Wind will be generally light. | Days 5-7 Weather SummarySome drizzle, heaviest during Wed afternoon. Very mild (max 17°C on Tue afternoon, min 9°C on Fri morning). Wind will be generally light. | |||||||||||||||||||
Sat 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | ||||||||||||||
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 19 | SW 18 | SW 16 | SW 15 | SW 15 | SW 14 | SW 13 | SW 13 | SW 12 | SW 13 | SW 13 | SW 14 | SW 14 | SW 14 | SW 15 | SW 14 | SW 14 | SW 14 |
Wave Graph | ||||||||||||||||||||
178 | 132 | 133 | 370 | 587 | 566 | 543 | 621 | 437 | 352 | 240 | 295 | 315 | 1368 | 1459 | 1251 | 1212 | 899 | 726 | 410 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross | cross-on | cross | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross | cross-off | cross-off | cross-off | off | off | cross-off | cross-off | cross-off |
High Tide | 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 | 11:56AM0.81m | |||||||||
Low Tide | 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 | 8:49PM0.38m | ||||||||
— | — | 7:35 | — | — | 7:35 | — | — | 7:33 | — | — | 7:33 | — | — | 7:33 | — | — | 7:33 | — | — | |
5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:53 | — | — | 5:54 | — | — | 5:54 | — | — | 5:55 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — |
Temp °C | 19 | 18 | 17 | 19 | 19 | 17 | 19 | 18 | 17 | 17 | 16 | 15 | 14 | 14 | 13 | 12 | 12 | 12 | 14 | 13 |
Feels °C | 13 | 13 | 11 | 13 | 14 | 12 | 16 | 15 | 13 | 13 | 14 | 12 | 9 | 10 | 7 | 6 | 7 | 8 | 10 | 9 |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 13 | SW 12 | SW 18 | SW 16 | SW 15 | SW 15 | SW 14 | SW 13 | SW 13 | SW 12 | SW 13 | SW 13 | SW 14 | SW 14 | SW 14 | SW 15 | SW 14 | SW 14 | SW 14 |
178 | 132 | 71 | 370 | 587 | 566 | 543 | 621 | 437 | 352 | 240 | 295 | 315 | 1368 | 1459 | 1251 | 1212 | 899 | 726 | 410 | |
Swell 2 Height (m) Direction Period (s) | — | SW 21 | SW 19 | SW 13 | SSE 10 | S 10 | NW 4 | — | SE 9 | — | — | — | — | — | — | — | — | — | — | — |
— | 18 | 133 | 82 | 19 | 2 | 5 | — | 3 | — | — | — | — | — | — | — | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | WSW 15 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | 21 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | NW 3 | NNE 3 | N 4 | NNW 4 | — | NNW 4 | — | — | — | SW 13 | — | SSW 4 | SSW 5 | SSW 14 | — | — | ESE 2 | ENE 3 | — | ESE 3 |
3 | 2 | 12 | 5 | — | 7 | — | — | — | 25 | — | 7 | 35 | 68 | — | — | 1 | 3 | — | 5 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 178 | 0 | 401 | 178 | 0 | 178 | 0 | 0 | 0 | 178 | 401 | 1227 | 1242 | 491 | 302 | 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.










