Cunns Surf Break

Lat Long: 32.10° S 132.98° E

Cunns Surf Forecast and Surf Report

Issued: 8 am 07 Sep 2026 (local time)

Forecast update in  hr  min

Today's Cunns sea temperature is
15.8°C
0.2° 

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


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 TypeTime (ACST) & Date Wave Height & Period
Next good surf (1 star+) 3PM (Mon 7th Sep)3.5ft (1.1m) 13s
Best Surf12AM (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 Forecast

Light 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 Summary

Mostly 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
Rating
(10 max)
2
3
4
4
2
2
2
2
2
2
3
3
2
2
2
0
0
1
0
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.1
SW
13
1.1
SSW
13
1.1
SW
18
1.6
SW
17
1.6
SW
16
1.5
SW
16
1.8
SW
19
2
SW
18
2.1
SW
16
1.8
SW
16
1.6
SW
16
1.4
SW
15
1.1
SW
14
1.2
SW
15
1.1
SW
16
1
SW
16
0.8
SW
15
1
SW
18
0.9
SW
16
0.9
SW
16
0.9
SW
15
Wave Graph
Metric surfscale
Energy kJ
394
440
850
1519
1381
1096
2367
2381
2214
1571
1284
881
536
648
677
468
266
595
437
416
318
Wind (km/h)
25
E
15
ESE
15
ESE
15
SE
30
SE
35
SE
40
ESE
40
SE
35
ESE
30
E
25
ESE
20
E
20
NE
15
ENE
20
NE
30
NNE
25
N
25
NNE
35
NNW
20
WNW
5
W
Wind State
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
cloud
cloud
cloud
cloud
light rain
light rain
part cloud
part cloud
clear
part cloud
part cloud
clear
clear
part cloud
part cloud
clear
clear
part cloud
clear
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:48
6:47
6:46
6:43
6:43
6:41
6:39
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
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
  • 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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