
Surf Forecasts:
Cunns surf forecast from 7 Sep 2026:
- Best quality surf: Tuesday 8 Sep, 12AM (local time) - 3.5ft (1.1m), 18s period, SW swell with offshore winds.
- Most powerful swell: Wednesday 9 Sep, 6PM (local time) - 8ft (2.4m), 17s period, SSW swell with 3,433 kJ wave energy.
- Next surfable swell (1★+): Monday 7 Sep, 3PM (local time) - 3.5ft (1.1m), 13s period with SSW 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 07) at 3PM. The primary swell is predicted to be 1.1m and 13s period with a secondary swell of 0.5m and 20s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Cunns in the next 16 days are 2.4m 17s and forecast to arrive on Wednesday (Sep 09) at 6PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 6s period and expected on Wednesday (Sep 09) at 3AM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3PM (Mon 7th Sep) | 3.5ft (1.1m) 13s |
| Best Surf | 12AM (Tue 8th Sep) | 3.5ft (1.1m) 18s |
| Most Powerful | 6PM (Wed 9th Sep) | 8ft (2.4m) 17s |
Table - best surf conditions forecast for Cunns over the next 16 days.
The Lowdown
Alright, Rusty here again. Let’s talk in feet and miles per hour.
Right now, Cunns is running small. We’ve got a 4ft SW groundswell, but the wind is howling out of the east at 16 mph, blowing offshore. It’s a bit of a battle with that much breeze. The wave energy is moderate (580), and the conditions are just marginal. The water temp is 60°, right where it should be for this time of year.
Monday afternoon is the first real chance. The wind drops to a gentle 9 mph from the ESE, still offshore, and the swell holds at 4ft from the SSW. The energy climbs to 644, and it’s clean. Not a standout, but a nice little session.
Now, Tuesday morning, the 8th of September, is the real deal. The swell jumps to 5ft from the SW, and the period stretches to a very long 17 seconds. This is proper groundswell with massive energy (1519). That kind of period on a reef like Cunns is going to produce some serious quality, but it’s expert territory only. The wind is a gentle 9 mph from the SE, offshore, and clean. This is one of the best windows. Just remember, crowds can show up here sometimes, so get in early.
Tuesday afternoon keeps the size and a solid 16-second period, but the wind picks up to 19 mph from the SE, cross-offshore. It gets a bit lumpy, but the morning is still the clear winner.
From Wednesday the 9th to Friday the 11th, we’ve got plenty of SW swell, but the wind is a problem. Wednesday morning has a 6ft, 19-second monster groundswell (energy 2567), but the wind is screaming at 25 mph from the ESE. That’s strong offshore, clean on the face but a nightmare to paddle into. Thursday and Friday are similar: big swell, messy wind. Not for the faint-hearted.
We then hit a lull. Saturday the 12th through Monday the 14th is a wipeout. Swell drops under 3ft, and the wind goes cross, cross-on, or onshore. Energy is weak (200-500), and conditions are lumpy and choppy. Stay on the beach.
Tuesday the 15th offers a small pulse: 4ft from the SW with a 12 mph easterly offshore. It’s clean, but small.
Wednesday the 16th is the second standout. The swell pushes back to 5ft from the SW with a 15-second period. The wind goes ESE at 12 mph, offshore and clean. The energy is a strong 1020. The afternoon is being called “excellent” for experienced surfers. That’s your next proper session.
Thursday the 17th and Friday the 18th are a write-off again. Strong cross-onshore winds, lumpy, zero scores.
Saturday the 19th sees a big swell of 7ft from the SW, but the wind is a light variable cross, with massive energy (2014). It’s a marginal call, not clean.
Finally, Monday the 22nd of September shows a big one in the distance. A 7ft groundswell from the SW with a long 17-second period, and a light 6 mph ENE offshore wind. Clean, and energy is a huge 2790. This is for experts only, and we’re deep into the second week, so it’s a promising but uncertain tip.
The standouts are Tuesday morning the 8th and Wednesday afternoon the 16th. If you’re an expert, Tuesday the 8th is the pick. For the second week, keep an eye on Monday the 22nd, but don’t bet the farm on it.
This is Rusty, signing off.
Short Range ForecastLight rain (total 4mm), mostly falling on Tue afternoon. Very mild (max 15°C on Mon night, min 9°C on Wed night). Winds increasing (calm on Mon night, strong winds from the ESE by Wed night). | Days 4-6 Weather SummaryMostly dry. Warm (max 26°C on Sat afternoon, min 9°C on Thu morning). Mainly fresh winds. | ||||||||||||||||||||
Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | |||||||||||||||
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 13 | SSW 13 | SW 18 | SW 17 | SW 16 | SW 16 | SW 19 | SW 18 | SW 16 | SW 16 | SW 16 | SW 15 | SW 14 | SW 15 | SW 16 | SW 16 | SW 15 | SW 18 | SW 16 | SW 16 | SW 15 |
Wave Graph | |||||||||||||||||||||
394 | 440 | 850 | 1519 | 1381 | 1096 | 2367 | 2381 | 2214 | 1571 | 1284 | 881 | 536 | 648 | 677 | 468 | 266 | 595 | 437 | 416 | 318 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | cross-off | off | off | off | off | cross-off | off | off | cross-off | cross-off | cross-off | cross | cross-on | cross | cross-on | on | cross-on |
High Tide | 11:44AM1.13m | 00:44AM0.70m | 11:57AM1.23m | 00:28AM0.79m | 12:11PM1.28m | 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 | |||||||
Low Tide | 6:51PM0.12m | 5:29AM0.37m | 6:45PM0.11m | 5:45AM0.23m | 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 | ||||||||
6:48 | — | — | 6:47 | — | — | 6:46 | — | — | 6:43 | — | — | 6:43 | — | — | 6:41 | — | — | 6:39 | — | — | |
— | 6:23 | — | — | 6:24 | — | — | 6:24 | — | — | 6:25 | — | — | 6:27 | — | — | 6:27 | — | — | 6:28 | — | |
mm | — | — | — | — | 3 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 14 | 15 | 15 | 12 | 13 | 12 | 14 | 12 | 14 | 18 | 19 | 19 | 22 | 21 | 23 | 26 | 25 | 28 | 29 | 28 |
Feels °C | 9 | 10 | 13 | 12 | 7 | 6 | 4 | 7 | 3 | 7 | 11 | 13 | 14 | 17 | 15 | 16 | 21 | 20 | 21 | 24 | 24 |
Swell 1 Height (m) Direction Period (s) | SW 13 | SSW 13 | SW 18 | SW 17 | SW 16 | SW 16 | SW 19 | SW 18 | SW 16 | SW 16 | SW 16 | SW 15 | SW 14 | SW 15 | SW 16 | SW 16 | SW 15 | SW 18 | SW 16 | SW 16 | SW 15 |
394 | 440 | 850 | 1519 | 1381 | 1096 | 2367 | 2381 | 2214 | 1571 | 1284 | 881 | 536 | 648 | 677 | 468 | 266 | 595 | 437 | 416 | 318 | |
Swell 2 Height (m) Direction Period (s) | SW 21 | SW 20 | SW 13 | — | — | — | S 8 | — | — | — | SW 26 | SW 25 | SW 23 | — | SE 4 | SW 18 | SW 19 | — | — | NW 5 | W 4 |
71 | 204 | 202 | — | — | — | 1 | — | — | — | 26 | 25 | 21 | — | 2 | 349 | 224 | — | — | 26 | 2 | |
Swell 3 Height (m) Direction Period (s) | SW 21 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | S 11 | — | — | — | — |
115 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 36 | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | ESE 4 | ESE 2 | SSE 5 | — | — | SSE 6 | SSE 7 | S 8 | ESE 5 | E 4 | ESE 2 | E 3 | ENE 4 | — | NE 3 | NNE 3 | NNW 4 | N 3 | NNW 4 | NW 4 | — |
16 | 1 | 29 | — | — | 94 | 199 | 257 | 48 | 15 | 1 | 1 | 8 | — | 2 | 7 | 2 | 3 | 24 | 16 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 132 | 0 | 0 | 0 | 552 | 491 | 1652 | 1577 | 491 | 361 | 132 | 0 | 0 | 0 | 0 | 178 | 178 | 0 | 564 | 506 | 146 |
Best forecast wave conditions in Nullarbor | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
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.










