Surf Forecasts:
Cunns surf forecast from 12 Sep 2026:
- Best quality surf: Wednesday 16 Sep, 12PM (local time) - 6ft (1.8m), 15s period, SW swell with offshore winds.
- Most powerful swell: Wednesday 16 Sep, 12PM (local time) - 6ft (1.8m), 15s period, SW swell with 1,434 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 1.8m 15s and forecast to arrive on Wednesday (Sep 16) at 12PM. Winds are predicted to be offshore 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) | 6ft (1.8m) 15s |
| Most Powerful | 12PM (Wed 16th Sep) | 6ft (1.8m) 15s |
Table - best surf conditions forecast for Cunns over the next 16 days.
The Lowdown
Alright, Rusty here. Let's take a look at what Cunns is offering up over the next couple of weeks.
The first few days are a total bust thanks to some gnarly cross-onshore wind. Don't bother paddling out until Monday the 14th. Water temp is around 60°, pretty much what you'd expect for this time of year.
Monday morning the 14th, the wind drops right off to glassy conditions with a light offshore from the SSE. You've got a clean 3ft SW swell rolling through. It's not big, but it's clean and the energy is moderate. That's your first proper window to get wet.
The session you want to save your energy for is Wednesday the 16th. We're looking at a solid 6ft SW groundswell with a 15-second period, and it's coming in under clean, fresh offshore winds from the E and SE. The energy is strong, and the wave face is going to be pure. This is a serious day for experienced surfers only on this reef break. If you know the lineup, this one is going to be a gem.
Further down the line, Monday the 21st morning is looking excellent for the skilled crew. Offshore ESE winds, with a 5ft SW swell carrying good energy. Then, Friday the 25th morning is a real heavyweight – a 6ft SW groundswell with a very long 19-second period, gentle offshore winds from the ESE, and massive wave energy. That is a deep, powerful ocean swell heading straight for the reef.
You'll have to dodge some choppy, lumpy, and windy days in between, particularly around the 18th, 19th, and 24th. The crowd factor at Cunns can pop up sometimes, so get in early on the good days.
Rusty.
Short Range ForecastMostly dry. Warm (max 27°C on Sat night, min 12°C on Tue afternoon). Winds decreasing (fresh winds from the WSW on Sat night, calm by Sun night). | Days 5-7 Weather SummaryMostly dry. Warm (max 26°C on Fri afternoon, min 8°C on Tue night). Mainly fresh winds. | ||||||||||||||||||
Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | ||||||||||||||
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 18 | SW 16 | SW 16 | SW 14 | SW 11 | SW 14 | SW 16 | SW 15 | SW 14 | SW 14 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 13 | SW 16 | SW 15 | SW 14 |
Wave Graph  | |||||||||||||||||||
 kJ | 307 | 432 | 729 | 763 | 166 | 390 | 635 | 949 | 911 | 911 | 1262 | 1323 | 871 | 573 | 410 | 202 | 208 | 221 | 169 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | glassy | cross-off | cross-off | off | cross-off | off | off | off | off | cross-off | cross-off | cross-off | cross | cross-on | cross |
High Tide | 00:58AM1.24m | 12:58PM1.18m | 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 | ||||||
Low Tide | 7:01AM0.02m | 7:01PM-0.05m | 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 | |||||||
 |  | |  | | | |  | | | | | | | | | | | | |
 | — | 6:39 | — | — | 6:39 | — | — | 6:37 | — | — | 6:35 | — | — | 6:35 | — | — | 6:33 | — | — |
 | 6:27 | — | 6:28 | — | — | 6:28 | — | — | 6:29 | — | — | 6:30 | — | — | 6:30 | — | — | 6:30 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 15 | 15 | 14 | 16 | 16 | 14 | 13 | 13 | 12 | 13 | 15 | 14 | 18 | 21 | 20 | 23 | 26 | 25 |
Feels °C | 23 | 11 | 11 | 13 | 13 | 12 | 11 | 7 | 7 | 6 | 8 | 9 | 9 | 14 | 17 | 15 | 15 | 19 | 19 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 16 | — | SW 14 | SW 11 | SW 14 | SW 16 | SW 15 | SW 14 | SW 14 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 13 | SW 16 | SW 15 | SW 14 |
| kJ | 248 | 432 | — | 763 | 166 | 390 | 635 | 949 | 911 | 911 | 1262 | 1323 | 871 | 573 | 410 | 202 | 208 | 221 | 169 |
Swell 2 Height (m) Direction Period (s) | SW 18 | S 9 | — | — | SW 14 | SW 18 | — | — | — | S 6 | — | — | S 5 | — | — | SW 18 | SW 11 | — | S 8 |
| kJ | 307 | 2 | — | — | 158 | 109 | — | — | — | 33 | — | — | 20 | — | — | 113 | 64 | — | 5 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | SW 19 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | 57 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | N 3 | WSW 5 | SW 16 | SW 15 | — | — | SSE 2 | SSE 4 | SSE 5 | ESE 4 | E 4 | SE 2 | ESE 4 | ENE 3 | — | ESE 3 | N 3 | N 4 | N 3 |
| kJ | 3 | 32 | 729 | 76 | — | — | 1 | 19 | 44 | 28 | 15 | 1 | 16 | 8 | — | 4 | 8 | 6 | 7 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 178 | 0 | 510 | 510 | 648 | 0 | 632 | 0 | 491 | 491 | 500 | 361 | 132 | 0 | 0 | 0 | 0 | 401 | 178 |
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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