Cunns Surf Break

Lat Long: 32.10° S 132.98° E

Cunns Surf Forecast and Surf Report

Issued: 8 am 27 Aug 2026 (local time)

Forecast update in  hr  min

Today's Cunns sea temperature is
15.3°C
0.3° 

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


Cunns surf forecast from 27 Aug 2026:

  • Best quality surf: Sunday 30 Aug, 6PM (local time) - 4.5ft (1.3m), 18s period, SW swell with offshore winds.
  • Most powerful swell: Friday 28 Aug, 12AM (local time) - 6ft (1.8m), 17s period, SW swell with 1,882 kJ wave energy.
  • Next surfable swell (1★+): Friday 28 Aug, 6PM (local time) - 4.5ft (1.3m), 16s 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 Friday (Aug 28) at 6PM. The primary swell is predicted to be 1.3m and 16s period. 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 17s and forecast to arrive on Friday (Aug 28) at 12AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Saturday (Aug 29) at 9PM.

Wave TypeTime (ACST) & Date Wave Height & Period
Next good surf (1 star+) 6PM (Fri 28th Aug)4.5ft (1.3m) 16s
Best Surf 6PM (Sun 30th Aug)4.5ft (1.3m) 18s
Most Powerful12AM (Fri 28th Aug)6ft (1.8m) 17s

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


The Lowdown

Alright, let’s get into it. Things are looking a bit grim around here for the next couple of weeks. Most of the time, the wind is onshore or cross-shore, and the surf quality is just not there. The only break that’s got any kind of recommendation is Cunns, a solid reef setup that needs a good SW swell to work, and it’s inconsistent. Over the next 16 days, there’s a big gap where things just aren’t happening.

The water temperature at Cunns is sitting at 59.5°F, which is about 0.5°F below the long-term average – pretty much normal for this time of year.

Let’s start with Thursday the 27th of August. Not much going on. The morning is clear with a north wind at 18.6 mph, cross-shore, and lumpy. The swell is 3.6 ft from the SW, period 14 seconds, but it’s messy. The combined energy is moderate (673). The afternoon is a bit better with a gentle cross-shore breeze, swell dropping to 3.0 ft but the period jumps to 19 seconds – that’s a nice long-period groundswell, but the wind is still cross-shore and the forecast is marginal. No real standout.

Friday the 28th is more of the same. Morning has some clouds, north wind 12.4 mph, cross-shore, with a 4.9 ft SW swell at 16 seconds. The energy is strong (1144), but the wind is ruining it. The afternoon turns cloudy with a WNW wind coming onshore, not good.

Saturday the 29th shows a little promise. The morning has a NE breeze at 9.3 mph, cross-offshore, and the surf is clean. Swell is only 3.3 ft, SW, 14 seconds, energy moderate (411). The afternoon is the best of the day: clear skies, an ESE wind at 12.4 mph blowing offshore, swell 3.0 ft, SW, 13 seconds, energy moderate (326). It’s clean and small, but probably the best session of the early period.

Sunday the 30th is similar. Morning has a NE cross-offshore breeze, 2.0 ft SW swell at 19 seconds, energy moderate (414). The afternoon is the pick: clear, ESE offshore wind at 9.3 mph, 2.6 ft SW swell at 19 seconds, energy moderate (697). Clean and long-period, but tiny.

Monday the 31st sees the swell pick up. Morning has a north-northeast wind at 12.4 mph, cross-shore, with a 5.2 ft SW swell at 19 seconds – that’s strong energy (1642). The afternoon is cross-shore again, same swell, energy strong (1453). Could be a bit of fun if the wind lays off, but it’s not clean.

Then from Tuesday the 1st of September, things go downhill. The wind swings cross-onshore and gets strong. On Tuesday morning, a NNW wind at 24.9 mph, cross-onshore, messy, swell 3.9 ft, SW, 16 seconds, energy moderate (747). The afternoon is a fresh cross-onshore breeze, 4.6 ft SW swell, 17 seconds, energy strong (1094). Not worth paddling out.

Wednesday the 2nd stays cross-onshore. The morning has a light SW breeze, 4.3 ft swell, 16 seconds, energy moderate (941). The afternoon is choppy with a moderate breeze, 4.9 ft, 14 seconds, energy moderate (965). No good.

Thursday the 3rd: morning is clear, light cross-onshore, 5.2 ft SW swell, 14 seconds, energy moderate (984). The afternoon is cross-shore, 5.6 ft, 14 seconds, energy strong (1224).

Short Range Forecast

Mostly dry. Warm (max 25°C on Thu afternoon, min 17°C on Thu morning). Winds decreasing (fresh winds from the N on Thu morning, calm by Fri afternoon).

Days 4-6 Weather Summary

Mostly dry. Warm (max 26°C on Tue morning, min 13°C on Tue night). Winds increasing (light winds from the ENE on Sun morning, strong winds from the NNW by Tue morning).

Thursday
27
Friday
28
Saturday
29
Sunday
30
Monday
31
Tuesday
1
Wednesday
2
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
2
1
2
1
3
1
2
2
1
3
4
2
3
1
0
0
0
1
0
3
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
14
0.9
SW
19
1.8
SW
17
1.5
SW
16
1.4
SW
16
1.1
SW
14
1
SW
14
0.9
SW
13
0.8
SW
13
0.6
SW
19
0.8
SW
19
1.3
SW
17
1.6
SW
19
1.6
SW
18
1.3
SW
16
1.2
SW
16
1.4
WSW
17
1.2
SW
16
1.3
SW
16
1.5
SW
14
1.4
SW
14
Wave Graph
Metric surfscale
Energy kJ
466
614
1882
1144
906
536
390
290
193
236
504
1062
1642
1453
909
719
1094
728
853
874
736
Wind (km/h)
30
N
15
N
25
NNE
20
N
15
WNW
15
ENE
15
NE
20
ESE
15
E
15
NE
15
ESE
15
E
20
NNE
15
NNE
20
N
40
NNW
30
W
25
SW
10
SW
20
SW
5
ESE
Wind State
cross
cross
cross
cross
on
cross-off
cross-off
off
off
cross-off
off
cross-off
cross
cross
cross
cross-on
cross-on
cross
cross-on
cross-on
glassy
High Tide
12:24PM1.38m
00:36AM1.00m
12:43PM1.41m
00:53AM1.09m
1:03PM1.40m
1:13AM1.18m
1:22PM1.34m
1:34AM1.23m
1:40PM1.24m
1:55AM1.26m
1:54PM1.12m
2:17AM1.24m
2:01PM0.98m
2:38AM1.18m
Low Tide
6:51PM0.02m
6:21AM0.00m
7:04PM-0.02m
6:45AM-0.05m
7:18PM-0.05m
7:10AM-0.06m
7:32PM-0.05m
7:36AM-0.03m
7:45PM-0.04m
8:01AM0.06m
7:57PM-0.01m
8:24AM0.19m
8:04PM0.03m
clear
clear
cloud
part cloud
cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
cloud
part cloud
part cloud
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:01
7:01
6:58
6:58
6:56
6:56
6:54
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:16
6:17
6:19
6:19
6:20
6:20
6:21
 mm
Temp °C
22
25
24
21
22
22
22
23
20
22
22
20
21
23
22
26
21
14
14
14
13
Feels °C
16
20
19
16
18
18
18
18
16
19
18
16
15
18
17
18
15
10
9
9
11
  • 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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