
Surf Forecasts:
Cunns surf forecast from 19 Jul 2026:
- Best quality surf: Friday 24 Jul, 12AM (local time) - 6ft (1.8m), 15s period, SW swell with offshore winds.
- Most powerful swell: Thursday 23 Jul, 6AM (local time) - 7ft (2.1m), 15s period, SW swell with 1,914 kJ wave energy.
- Next surfable swell (1★+): Monday 20 Jul, 3PM (local time) - 4ft (1.2m), 15s 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 3PM. The primary swell is predicted to be 1.2m and 15s 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 2.1m 15s 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 0.2m 2s period and expected on Tuesday (Jul 21) at 6AM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3PM (Mon 20th Jul) | 4ft (1.2m) 15s |
| Best Surf | 12AM (Fri 24th Jul) | 6ft (1.8m) 15s |
| Most Powerful | 6AM (Thu 23rd Jul) | 7ft (2.1m) 15s |
Table - best surf conditions forecast for Cunns over the next 16 days.
The Lowdown
Alright mate, Rusty here with a long look at the Cunns reef. It’s a bit of a slow burner for the first week, but we’ve got a couple of absolute corkers hiding in the second week if you’ve got the patience and the skill for it.
Right off the bat, the water temp is sitting at a balmy 61°, which is pretty much normal for this time of year. No surprises there.
The first few days are a write-off, honestly. Sunday the 19th and Monday the 20th are plagued by messy cross-onshore winds and the swell is small and weak. You wouldn’t even bother paddling out. The combined energy is a paltry 234 for Sunday morning—barely a ripple.
Tuesday the 21st afternoon is our first little flicker of hope. The wind goes glassy offshore from the WNW, but the swell is only 4 ft from the SW with a shortish period. It’s a marginal call at best.
Then we get a tease on Thursday the 23rd. The swell jumps to 7-7 ft from the SW, and the wind is clean cross-off, but the forecast calls it marginal. The combined energy is strong though, clocking in at 1806. It might be worth a look if you’re desperate, but the real gem comes on Friday the 24th. That morning is the standout of the first week. Glassy conditions, a clean 5 ft SW groundswell with a 14-second period. The combined energy is a solid 1077. This will be the best, most pleasant surf of the early run. The reef should be working nicely with that long period, but remember, Cunns can be inconsistent, and it’s an advanced spot only.
After that, it goes flat and poor again through the weekend and into the early part of the second week. There’s a massive gap of poor surf from the 25th right through to the 31st. A lot of strong, messy wind and big, junky swell.
Hold onto your board for Sunday the 2nd of August. This is the big one. This is the true standout of the entire forecast. Sunday afternoon is looking at a massive 10 ft swell from the WSW with an incredibly long 21-second period. The combined energy is a whopping 6965—that’s serious, heavy water. The wind is a clean cross-off. This is expert territory only; over 8 ft and that kind of period will make it a freight train. The direction is a perfect match for Cunns’ optimum SW swell. This is a proper, groundswell bomb. It will be clean, powerful, and absolutely pumping. For the experienced crew, this is the session you wait for.
Monday the 3rd of August holds a solid, clean 7 ft SW swell too, still with good period. It’s another excellent opportunity for those who know what they’re doing on the reef.
So, to sum it up: the first week is mostly a dud with a nice, clean session on Friday the 24th for a warm-up. Then the entire second week starts poor until that absolute monster on Sunday the 2nd of August. That is your date to circle.
Rusty.
Short Range ForecastMostly dry. Very mild (max 19°C on Sun afternoon, min 13°C on Sun morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 14°C on Wed morning, min 11°C on Thu night). Winds decreasing (fresh winds from the SSW on Wed morning, calm by Fri morning). | ||||||||||||||||||||
Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | |||||||||||||||
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 19 | SW 18 | SW 16 | SW 15 | SW 15 | SW 14 | SW 13 | SW 13 | SW 12 | SW 11 | SW 14 | SW 15 | SW 14 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 |
Wave Graph | |||||||||||||||||||||
133 | 370 | 587 | 566 | 623 | 595 | 437 | 357 | 240 | 233 | 722 | 1597 | 1752 | 1832 | 1500 | 1077 | 886 | 604 | 560 | 552 | 527 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross | cross-on | glassy | cross-off | cross-on | on | cross-on | cross | cross | cross-off | cross-off | cross-off | off | glassy | cross-off | cross-off | cross | cross | glassy |
High Tide | 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 | 11:20AM0.94m | 00:21AM0.53m | |||||||||
Low Tide | 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 | 7:15PM0.37m | ||||||||||
7:35 | — | — | 7:35 | — | — | 7:33 | — | — | 7:33 | — | — | 7:33 | — | — | 7:33 | — | — | 7:31 | — | — | |
— | 5:52 | — | — | 5:52 | — | — | 5:53 | — | — | 5:54 | — | — | 5:54 | — | — | 5:55 | — | — | 5:55 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 19 | 19 | 17 | 19 | 18 | 17 | 19 | 18 | 14 | 14 | 14 | 13 | 13 | 12 | 12 | 12 | 12 | 13 | 13 | 14 |
Feels °C | 11 | 13 | 15 | 13 | 17 | 14 | 13 | 17 | 16 | 10 | 8 | 8 | 8 | 7 | 7 | 9 | 8 | 8 | 10 | 9 | 12 |
Swell 1 Height (m) Direction Period (s) | SW 12 | SW 18 | SW 16 | SW 15 | SW 15 | SW 14 | SW 13 | SW 13 | SW 12 | SW 14 | — | — | SW 14 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 |
71 | 370 | 587 | 566 | 623 | 595 | 437 | 357 | 240 | 127 | — | — | 1752 | 1832 | 1500 | 1077 | 886 | 604 | 560 | 552 | 527 | |
Swell 2 Height (m) Direction Period (s) | SW 19 | SW 13 | SSW 10 | S 10 | — | — | SE 9 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
133 | 82 | 10 | 2 | — | — | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | WSW 15 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
21 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | NNW 3 | NW 4 | — | NNW 3 | — | — | NNW 3 | — | — | SW 11 | SW 14 | SW 15 | SW 15 | SW 15 | — | — | — | — | — | — | — |
9 | 3 | — | 7 | — | — | 2 | — | — | 233 | 722 | 1597 | 54 | 60 | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 401 | 178 | 0 | 178 | 0 | 0 | 178 | 178 | 178 | 1227 | 1236 | 1219 | 491 | 941 | 0 | 0 | 0 | 0 | 1035 | 940 | 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.










