Cunns Surf Break

Lat Long: 32.10° S 132.98° E

Cunns Surf Forecast and Surf Report

Issued: 8 pm 02 Sep 2026 (local time)

Forecast update in  hr  min

Today's Cunns sea temperature is
16.2°C
0.7° 

Cunns surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Cunns surf forecast from 2 Sep 2026:

  • Best quality surf: Thursday 3 Sep, 9PM (local time) - 7ft (2.1m), 15s period, SW swell with offshore winds.
  • Most powerful swell: Saturday 5 Sep, 6AM (local time) - 8ft (2.5m), 14s period, SW swell with 2,509 kJ wave energy.
  • Next surfable swell (1★+): Thursday 3 Sep, 9PM (local time) - 7ft (2.1m), 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 Thursday (Sep 03) at 9PM. The primary swell is predicted to be 2.1m and 15s period. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Cunns in the next 16 days are 2.5m 14s and forecast to arrive on Saturday (Sep 05) at 6AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.9m 6s period and expected on Monday (Sep 07) at 6AM.

Wave TypeTime (ACST) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Thu 3rd Sep)7ft (2.1m) 15s
Best Surf 9PM (Thu 3rd Sep)7ft (2.1m) 15s
Most Powerful 6AM (Sat 5th Sep)8ft (2.5m) 14s

Table - best surf conditions forecast for Cunns over the next 16 days.


The Lowdown

Alright folks, Rusty here. Let’s get into it.

Alright, I’m looking at a long sixteen-day window and to be honest, it’s a bit of a mixed bag. We’ve got a solid, consistent groundswell pulse from the SW, but for a lot of the run, the wind is going to be a real pain. There’s a period in the middle where it cleans right up, and a couple of days toward the end that look very promising indeed.

Our only real option on the table is Cunns. This is a reef break, and it’s an inconsistent one, so when it’s on, it’s on, but it can be quiet. This run starts with a bit of a wait, but the first surf worth mentioning kicks off Thursday morning, September 3rd. Thursday morning has a clean 5.2ft SW swell with a 14-second period, and a light offshore breeze from the NW. The combined energy is moderate (1033). It’s small but clean, so a good session for the experienced crew who know the reef.

The swell builds through Friday, hitting 6.9ft to 7.9ft, but the wind goes cross-on and gets strong, so that’s a write-off. Saturday sees a similar story – a solid 8.2ft SW swell, but the wind is howling cross-on, making it lumpy. Saturday afternoon the wind backs off a little, but it’s still cross-shore and choppy.

Now, Sunday September 6th is where it gets interesting. The morning is clean with a cross-off breeze from the ENE and a 5.6ft SW swell (period 14s). The energy is moderate (1091). But the standout is Sunday afternoon. The wind switches to a light offshore from the SE, the swell drops to 4.6ft but holds that long period, and the conditions are clean. The combined energy is moderate (802). This is the pick of the first week. Clean, glassy, and a proper long-period groundswell – this reef will be working beautifully.

Through early next week, Monday September 7th and Tuesday 8th, the swell drops away but the wind stays offshore. Wave energy is low (243-360) on Monday, so it’s small and clean, but the Tuesday morning September 8th sees a jump in swell back to 4.9ft with a very long 17-second period. The energy is moderate (1502). The wind is strong offshore, so it’ll be clean but a bit blowy.

The second week gets messy again from the 10th onwards with strong cross and cross-on winds. The swell is still in the 3.9ft-5.9ft range, but the wind ruins it. There’s a glimmer on Monday September 14th afternoon with a clean cross-off breeze and a 5.9ft SW swell at 17 seconds. The energy is moderate (1827). That’s another good session.

But the real highlight, the one to circle on the calendar, is Tuesday September 15th. The morning is glassy. No wind. A 5.9ft SW swell with a 15-second period. The energy is moderate (1344). The conditions are described as excellent for experienced surfers. This is the best of the run. If you can get out there, this is the one. The afternoon is a bit of a drop-off with a cross-shore breeze, but the morning is a gem.

After that, the wind turns onshore again and the last few days are a no-go.

So, the long and short of it: a lot of wind junk, but a few clear windows. The standouts are Sunday afternoon September 6th and Tuesday morning September 15th. The Tuesday morning session is the best one on offer.

Short Range Forecast

Light rain (total 3mm), mostly falling on Fri morning. Warm (max 25°C on Fri morning, min 13°C on Sat afternoon). Winds increasing (light winds from the WNW on Wed night, fresh winds from the WSW by Fri night).

Days 5-7 Weather Summary

Light rain (total 3mm), mostly falling on Sun night. Warm (max 20°C on Sun afternoon, min 10°C on Sat night). Winds increasing (light winds from the SE on Sat night, strong winds from the ESE by Mon night).

Thursday
3
Friday
4
Saturday
5
Sunday
6
Monday
7
Tuesday
8
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
3
2
3
3
1
0
0
0
2
4
3
3
1
0
1
2
3
3
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.7
SW
14
1.6
SW
14
1.8
SW
14
2.1
SW
15
2.1
SW
15
2.4
SW
15
2.3
SW
15
2.5
SW
13
2.4
SW
14
2.2
SW
14
1.7
SW
14
1.4
SW
14
1
SW
13
0.7
SW
13
0.8
SW
13
1.5
SW
18
1.5
SW
17
1.3
SW
16
1.2
SW
16
Wave Graph
Metric surfscale
Energy kJ
1171
1033
1220
1857
1932
2490
2264
2094
2190
1770
1091
802
345
171
212
1483
1282
943
710
Wind (km/h)
10
WNW
10
NW
15
SSW
20
E
20
NNW
30
WSW
30
WSW
25
WSW
20
SW
10
E
20
ENE
15
SE
25
SE
35
ESE
30
ESE
40
ESE
30
ESE
35
SE
30
ESE
Wind State
on
on
cross
cross-off
cross-on
cross-on
cross-on
cross-on
cross
cross-off
cross-off
off
off
off
off
off
off
off
off
High Tide
2:38AM1.18m
1:55PM0.86m
2:56AM1.07m
1:20PM0.80m
3:04AM0.92m
12:18PM0.85m
2:38AM0.77m
11:43AM0.99m
1:29AM0.68m
11:44AM1.13m
00:44AM0.70m
11:57AM1.23m
00:28AM0.79m
Low Tide
8:42AM0.36m
8:05PM0.07m
8:45AM0.54m
7:54PM0.11m
7:58AM0.69m
7:31PM0.13m
6:09AM0.69m
7:06PM0.13m
5:24AM0.54m
6:51PM0.12m
5:29AM0.37m
6:45PM0.11m
clear
clear
clear
part cloud
light rain
light rain
part cloud
part cloud
clear
clear
clear
part cloud
light rain
cloud
rain showers
light rain
cloud
cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:52
6:52
6:50
6:48
6:48
6:47
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:21
6:22
6:22
6:22
6:23
6:23
6:24
 mm
1
2
1
1
1
Temp °C
14
17
17
17
25
20
16
14
14
12
18
20
14
13
14
14
14
13
13
Feels °C
10
14
14
15
20
15
11
8
10
10
14
16
8
6
8
7
8
6
5
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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