
Surf Forecasts:
Cunns surf forecast from 13 Sep 2026:
- Best quality surf: Wednesday 16 Sep, 12PM (local time) - 5.5ft (1.7m), 15s period, SW swell with offshore winds.
- Most powerful swell: Sunday 20 Sep, 9AM (local time) - 6.5ft (2.0m), 16s period, SW swell with 1,871 kJ wave energy.
- Next surfable swell (1★+): Monday 14 Sep, 6AM (local time) - 4ft (1.2m), 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 (Sep 14) at 6AM. The primary swell is predicted to be 1.2m and 14s period with a secondary swell of 0.3m and 19s. 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 16s and forecast to arrive on Sunday (Sep 20) at 9AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 5s period and expected on Tuesday (Sep 15) at 9PM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Mon 14th Sep) | 4ft (1.2m) 14s |
| Best Surf | 12PM (Wed 16th Sep) | 5.5ft (1.7m) 15s |
| Most Powerful | 9AM (Sun 20th Sep) | 6.5ft (2.0m) 16s |
Table - best surf conditions forecast for Cunns over the next 16 days.
The Lowdown
Alright, Rusty here, let’s talk about the only game in town for the next couple of weeks – Cunns. It’s a bit of an inconsistent reef break, so when the stars line up, you need to be on it. The water temp is sitting about average for this time of year, so a normal 3/2 will do you.
We’re kicking off Monday, the 14th, with a tiny little pulse. It’s a clean, glassy 3ft from the southwest, with a long 11-second period. The combined energy is weak at 381. It’s small, but it’s a fun little window if you’re on a fish. It gets a bit more size that afternoon, up to 3ft, but the wind turns cross-off, so it’s not as clean.
Tuesday the 15th, the swell fills in properly. We’re looking at a clean 5ft southwest groundswell with a very long 15-second period. The combined energy jumps to the moderate range (1028 to 1148). This is a proper groundswell, so it’s going to wrap around and hold shape on the reef perfectly. The morning has a fresh offshore wind, making for some seriously clean, lined-up waves.
Wednesday the 16th is the standout for the first week. The swell holds at 5ft to 6ft from the SW, still with that long 15-second period. The energy is solid (1306), and all day we’ve got offshore winds. It’s going to be firing – steep, fast, and hollow. This is for experienced surfers; it’ll be too much for beginners.
Thursday the 17th eases off a bit, dropping to 4ft to 4ft, but still clean. The morning is the better bet. After that, we hit a rough patch. From Friday the 18th right through to Sunday the 20th, forget it. The wind goes onshore or cross-shore, and it’s just messy chop. The swell is all over the place, but the wind ruins it completely.
Things turn back on Sunday the 20th afternoon. It’s a clean 7ft southwest swell (1536 energy) with a gentle cross-off breeze. Now we’re talking. Monday the 21st is another ripper – 6ft in the morning, building to 7ft in the afternoon, with the energy jumping to 2103. The wind stays cross-off and clean. This is for the experienced crew again.
Tuesday the 22nd morning starts with a clean 5ft (1074 energy) and a light breeze. The afternoon turns to junk with a howling onshore wind, so get your session in early.
The second week has a few glimmers. Friday the 25th afternoon looks promising – a 7ft clean swell from the SW with 2048 energy and a light breeze. That’s a big, powerful wave. Saturday the 26th is back to smaller, clean 3ft conditions, great for a longboard.
Sunday the 27th brings another big pulse, but the wind is cross-shore and messy, ruining what could be a 7ft to 8ft swell with that very long period. It’s a shame.
Finally, on Tuesday the 29th, we end the outlook on a high note. A clean 6ft from the SW, a very long 18-second period, and a moderate offshore wind. The energy is powerful at 1925. If you can wait, that’s the one to aim for in the second week.
Alright, that’s the long look from me. Keep your eyes on the horizon.
Rusty
Short Range ForecastMostly dry. Very mild (max 16°C on Mon morning, min 8°C on Tue night). Winds increasing (calm on Sun night, fresh winds from the SE by Tue night). | Days 5-7 Weather SummaryMostly dry. Warm (max 32°C on Sat afternoon, min 12°C on Wed night). Winds increasing (light winds from the NE on Thu afternoon, strong winds from the N by Sat morning). | ||||||||||||||||||
Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | ||||||||||||||
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 11 | SW 14 | SW 16 | SW 15 | SW 15 | SW 14 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 13 | SW 18 | SW 15 | SW 14 | SW 13 | WSW 13 | SW 12 |
Wave Graph | |||||||||||||||||||
676 | 166 | 390 | 728 | 1028 | 1108 | 911 | 1138 | 1306 | 975 | 658 | 422 | 286 | 112 | 229 | 132 | 113 | 396 | 522 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | glassy | cross-off | cross-off | off | cross-off | off | off | off | off | cross-off | cross-off | cross-off | cross | cross-on | cross | cross | cross-on | cross-on |
High Tide | 1:14AM1.30m | 1:09PM1.14m | 1:31AM1.32m | 1:19PM1.09m | 1:48AM1.30m | 1:29PM1.04m | 2:06AM1.24m | 1:37PM0.97m | 2:22AM1.15m | 1:38PM0.90m | 2:36AM1.02m | 1:21PM0.83m | 2:39AM0.88m | ||||||
Low Tide | 7:19AM0.05m | 7:11PM-0.08m | 7:37AM0.10m | 7:23PM-0.08m | 7:53AM0.17m | 7:36PM-0.05m | 8:08AM0.26m | 7:47PM0.01m | 8:19AM0.37m | 7:53PM0.09m | 8:21AM0.50m | 7:48PM0.18m | |||||||
— | 6:39 | — | — | 6:37 | — | — | 6:35 | — | — | 6:35 | — | — | 6:33 | — | — | 6:31 | — | — | |
6:28 | — | 6:28 | — | — | 6:29 | — | — | 6:30 | — | — | 6:30 | — | — | 6:30 | — | — | 6:30 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 16 | 16 | 14 | 14 | 13 | 12 | 13 | 15 | 13 | 18 | 22 | 21 | 23 | 27 | 26 | 28 | 32 | 28 |
Feels °C | 13 | 14 | 12 | 11 | 8 | 6 | 6 | 7 | 9 | 8 | 13 | 17 | 16 | 15 | 21 | 20 | 18 | 23 | 22 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 11 | SW 14 | SW 16 | SW 15 | SW 15 | SW 14 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 13 | SSW 12 | SW 15 | SW 14 | SW 13 | SW 13 | — |
676 | 166 | 390 | 728 | 1028 | 1108 | 911 | 1138 | 1306 | 975 | 658 | 422 | 286 | 88 | 229 | 132 | 113 | 171 | — | |
Swell 2 Height (m) Direction Period (s) | — | SW 14 | SW 18 | — | — | — | — | SSE 6 | — | S 5 | — | — | SE 4 | SW 14 | — | — | SW 20 | SW 18 | — |
— | 158 | 109 | — | — | — | — | 10 | — | 21 | — | — | 3 | 74 | — | — | 15 | 157 | — | |
Swell 3 Height (m) Direction Period (s) | — | SW 19 | SW 14 | — | — | — | — | — | — | — | — | — | SW 18 | SW 18 | — | — | — | — | — |
— | 57 | 125 | — | — | — | — | — | — | — | — | — | 48 | 112 | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | SW 15 | — | SW 18 | SSE 3 | SSE 5 | SSE 5 | SE 6 | ESE 4 | SSE 2 | ESE 4 | ENE 3 | — | NE 3 | N 4 | N 4 | N 3 | NW 5 | WSW 13 | SW 12 |
76 | — | 79 | 1 | 33 | 46 | 83 | 22 | 1 | 17 | 4 | — | 2 | 12 | 7 | 8 | 73 | 396 | 522 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 583 | 0 | 648 | 491 | 491 | 491 | 491 | 243 | 0 | 132 | 0 | 0 | 0 | 632 | 401 | 0 | 564 | 431 | 649 |
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.










