Surf Forecasts:
Cunns surf forecast from 9 Sep 2026:
- Best quality surf: Thursday 10 Sep, 6PM (local time) - 5ft (1.5m), 16s period, SW swell with offshore winds.
- Most powerful swell: Wednesday 9 Sep, 9PM (local time) - 7.5ft (2.3m), 17s period, SSW swell with 2,815 kJ wave energy.
- Next surfable swell (1★+): Thursday 10 Sep, 6PM (local time) - 5ft (1.5m), 16s 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 Thursday (Sep 10) at 6PM. The primary swell is predicted to be 1.5m and 16s period with a secondary swell of 0.1m and 26s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Cunns in the next 16 days are 2.3m 17s and forecast to arrive on Wednesday (Sep 09) at 9PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 5s period and expected on Thursday (Sep 10) at 3AM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Thu 10th Sep) | 5ft (1.5m) 16s |
| Best Surf | 6PM (Thu 10th Sep) | 5ft (1.5m) 16s |
| Most Powerful | 9PM (Wed 9th Sep) | 7.5ft (2.3m) 17s |
Table - best surf conditions forecast for Cunns over the next 16 days.
The Lowdown
Alright, grab your rubber and let's talk surf. Rusty here with the long-range look for Cunns.
We got a slow start, but don't sleep on this run. The opening days are messy with strong cross-off wind and solid size, but the real story is the quality that builds for the middle of the window.
The first couple of days, Wednesday the 9th and Thursday the 10th, are a bit of a washout. You're looking at a solid 8ft of SSW swell on Wednesday, but with a 22 mph SE wind, it's just too gnarly and choppy to be any fun. The combined swell energy is massive at 3713, but it's a battle out there. Thursday stays marginal with the wind still ugly.
Now, Friday afternoon the 11th is where it starts to get interesting. The swell drops to a clean 4ft from the SW, but the wind eases right off to a light 6 mph E breeze, going cross-off. The period is a solid 15 seconds, which is proper groundswell, and the energy is still a moderate 753. This is the kind of window where Cunns (reef) starts to show its teeth. This reef loves a SW swell, and with that offshore wind, you'll be getting some nice, clean lines. Just remember, this spot is inconsistent, so you'll need a bit of patience between sets, but when they come, they'll be worth the wait.
The next standout is Tuesday the 15th. This is the pick of the whole run. The wind goes offshore from the ESE at 16 mph, and we've got a solid 6ft SW groundswell rolling in with a 14-second period. The combined energy is a beefy 1407, putting it right in that sweet spot for experienced surfers. This is going to be powerful, clean, and offering some serious barrels for those who can handle it. This is easily the best on offer for the strong surfers. The morning session will be the cleanest.
Things get a bit chunky and unreliable towards the end of the second week, with wind issues and a drop in size. There's a flicker on Friday the 18th with another clean, offshore morning (4ft SW, 15 seconds), but it's a smaller window.
Water temp is sitting at 60°, which is pretty average for early September, so the 4/3 is staying on.
All in all, point your truck for Friday afternoon the 11th for a sneaky, clean session, or go big on Tuesday the 15th for the real power.
Rusty.
Short Range ForecastMostly dry. Warm (max 24°C on Sat morning, min 10°C on Wed night). Winds decreasing (strong winds from the ESE on Wed night, light winds from the E by Fri afternoon). | Days 5-7 Weather SummaryMostly dry. Warm (max 27°C on Sat afternoon, min 12°C on Mon night). Wind will be generally light. | |||||||||||||||||||
Wed 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | ||||||||||||||
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) | SSW 18 | SW 16 | SW 16 | SSW 16 | SW 15 | SW 15 | SW 15 | SW 16 | SW 17 | SW 16 | SW 18 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 16 | SW 14 | SW 14 | SW 14 |
Wave Graph  | ||||||||||||||||||||
 kJ | 3553 | 2187 | 1571 | 1460 | 893 | 685 | 753 | 746 | 742 | 546 | 307 | 515 | 416 | 262 | 241 | 238 | 211 | 1407 | 1218 | 1049 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | cross-off | off | off | cross-off | cross-off | cross-off | cross | cross-on | cross | on | cross-off | cross-off | off | cross-off | off | off | off | off |
High Tide | 00:26AM0.90m | 12:24PM1.29m | 00:33AM1.03m | 12:37PM1.26m | 00:44AM1.14m | 12:48PM1.22m | 00:58AM1.24m | 12:58PM1.18m | 1:14AM1.30m | 1:09PM1.14m | 1:31AM1.32m | 1:19PM1.09m | 1:48AM1.30m | |||||||
Low Tide | 6:43PM0.10m | 6:04AM0.12m | 6:44PM0.07m | 6:23AM0.05m | 6:47PM0.04m | 6:43AM0.02m | 6:53PM-0.01m | 7:01AM0.02m | 7:01PM-0.05m | 7:19AM0.05m | 7:11PM-0.08m | 7:37AM0.10m | 7:23PM-0.08m | |||||||
 |  | | |  | |  | |  | | | | | | | | | | | | |
 | — | — | 6:43 | — | — | 6:43 | — | — | 6:41 | — | — | 6:39 | — | — | 6:39 | — | — | 6:37 | — | — |
 | 6:24 | — | — | 6:25 | — | — | 6:27 | — | — | 6:27 | — | — | 6:28 | — | — | 6:28 | — | — | 6:29 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 13 | 15 | 18 | 18 | 19 | 20 | 20 | 24 | 27 | 26 | 21 | 19 | 16 | 17 | 17 | 15 | 17 | 18 | 19 |
Feels °C | 6 | 5 | 8 | 11 | 12 | 15 | 16 | 16 | 18 | 23 | 22 | 19 | 16 | 13 | 15 | 13 | 12 | 13 | 13 | 15 |
Swell 1 Height (m) Direction Period (s) | SSW 18 | SW 16 | SW 16 | SSW 16 | SW 15 | SW 15 | SW 15 | SW 16 | SW 17 | SW 16 | SW 14 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 13 | SW 14 | SW 14 | SW 14 |
| kJ | 3553 | 2187 | 1571 | 1460 | 893 | 685 | 753 | 746 | 742 | 546 | 248 | 515 | 416 | 262 | 241 | 238 | 138 | 1407 | 1218 | 1049 |
Swell 2 Height (m) Direction Period (s) | — | — | — | SW 26 | SW 25 | SW 24 | — | — | SW 18 | SW 20 | SW 18 | — | — | — | SW 19 | SW 18 | SW 16 | — | — | — |
| kJ | — | — | — | 26 | 25 | 22 | — | — | 392 | 66 | 307 | — | — | — | 57 | 111 | 211 | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | WSW 6 | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 4 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | S 18 | ESE 5 | E 4 | SE 3 | E 2 | ENE 3 | — | — | NE 3 | — | NNE 3 | NNW 3 | SW 16 | — | — | S 4 | SSE 5 | SE 2 | SSE 2 | SSE 2 |
| kJ | 160 | 40 | 15 | 2 | 1 | 3 | — | — | 2 | — | 3 | 2 | 64 | — | — | 13 | 49 | 1 | 1 | 1 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 1577 | 837 | 837 | 132 | 0 | 0 | 0 | 0 | 0 | 178 | 0 | 564 | 648 | 0 | 0 | 632 | 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.
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