Cunns Surf Break

Lat Long: 32.10° S 132.98° E

Cunns Surf Forecast and Surf Report

Issued: 2 am 07 Aug 2026 (local time)

Forecast update in  hr  min

Today's Cunns sea temperature is
15.5° 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 7 Aug 2026:

  • Most powerful swell: Thursday 13 Aug, 6AM (local time) - 11ft (3.5m), 16s period, SW swell with 6,647 kJ wave energy.

Best Forecast Surf Conditions for Cunns this week:

The most powerful waves expected at Cunns in the next 16 days are 3.5m 16s and forecast to arrive on Thursday (Aug 13) 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 0.4m 4s period and expected on Friday (Aug 07) at 6PM.

Wave TypeTime (ACST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 6AM (Thu 13th Aug)11ft (3.5m) 16s

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


The Lowdown

Right, me old china, let’s have a look at this Cunns situation. It’s a tricky reef setup, and this stretch doesn’t start off kind. We’ve got a big gap of messy, blown-out conditions before anything becomes worth a paddle.

The first week is a write-off, to be honest. From Friday the 7th right through to Thursday the 13th, it’s a mix of strong cross-shore winds, near gale force stuff, and rain. The swell is there, but it’s ugly. The energy is high – you’re looking at readings from 1271 to 5995 – but it’s all cross-chop and lumpy faces. No good for a clean ride. The water temp is about average for this time of year, so nothing to write home about there.

There’s a real shift on Friday the 14th. That’s the standout. The wind finally swings offshore from the east at just 3 mph, and we’ve got a clean 7 ft south-west groundswell with a very long 17-second period. The energy is solid at 2517. This is a classic reef wave setup – that long period will wrap in nicely, giving you proper walls. This is one for the experienced crew though, as it’s over 8 ft potential on the sets and it’s an inconsistent break. The crowd factor is listed as “sometimes,” so you might have a few others in the water, but with that quality, it’s worth the fight. The afternoon holds up too, with a clean 7 ft from the same direction.

Saturday the 15th is still tidy, with a clean 6 ft swell and cross-off winds, but the energy drops a bit. The following week sees the swell taper off, but we get some glassy conditions on Tuesday the 18th afternoon – 4 ft, glassy, and 854 energy. That’s a sneaky good session for a log or a mid-length. Then, on Thursday the 20th, it bumps back up to 8 ft with a 17-second period and clean conditions, but the wind is a bit stronger. That’s a promising long-range call, but less certain than the 14th.

So, the best bet is undeniably Friday the 14th. Big, clean, long-period swell from the south-west at Cunns. It’s a proper reef, so take your A-game.

Rusty

Short Range Forecast

Heavy rain (total 24mm), heaviest during Sat night. Very mild (max 18°C on Fri morning, min 11°C on Sat night). Winds increasing (moderate winds from the NNE on Fri afternoon, near gales from the W by Sun morning).

Days 4-6 Weather Summary

Light rain (total 8mm), mostly falling on Tue night. Very mild (max 19°C on Tue morning, min 11°C on Tue afternoon). Winds decreasing (near gales from the W on Tue afternoon, light winds from the WSW by Wed night).

Friday
7
Saturday
8
Sunday
9
Monday
10
Tuesday
11
Wednesday
12
Thursday
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)
0
1
1
1
0
0
0
0
0
2
0
0
0
0
0
0
0
3
2
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)
1.6
SW
16
1.5
SW
17
1.4
SW
16
1.5
SW
16
1.5
SW
15
2
WSW
14
3
WSW
10
3
WSW
12
3
SW
17
2.5
SW
17
2.3
SW
16
1.7
SW
16
1.2
SW
14
3
WSW
9
3
WSW
11
3
WSW
17
3
SW
17
3
SW
16
2.5
SW
16
2.5
SW
16
2.1
SW
14
Wave Graph
Metric surfscale
Energy kJ
1256
1267
1039
1074
953
1614
1849
2676
5064
3597
2643
1384
590
1245
2331
4876
5006
3868
3438
2963
1736
Wind (km/h)
30
N
25
NNE
30
N
20
N
25
NNW
40
WNW
60
W
55
WSW
40
SW
20
WNW
20
WNW
30
N
40
N
55
W
40
WSW
40
WSW
40
SW
20
SW
15
WSW
15
SW
10
NW
Wind State
cross-on
cross
cross
cross-on
cross-on
on
cross-on
cross-on
cross-on
on
on
cross-on
cross-on
on
cross-on
cross-on
cross-on
cross
cross-on
cross-on
on
High Tide
12:11PM0.76m
11:17AM0.96m
2:07AM0.58m
11:38AM1.14m
1:00AM0.58m
12:03PM1.28m
00:48AM0.63m
12:27PM1.36m
00:49AM0.71m
12:48PM1.38m
00:57AM0.80m
1:06PM1.36m
1:08AM0.91m
Low Tide
8:14PM0.26m
7:25PM0.20m
4:19AM0.56m
7:12PM0.14m
5:06AM0.41m
7:16PM0.11m
5:37AM0.27m
7:23PM0.11m
6:04AM0.16m
7:30PM0.12m
6:29AM0.08m
7:34PM0.13m
rain showers
rain showers
rain showers
cloud
rain showers
rain showers
rain showers
rain showers
part cloud
part cloud
part cloud
clear
clear
rain showers
rain showers
part cloud
clear
cloud
part cloud
part cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:22
7:22
7:20
7:20
7:18
7:18
7:16
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:05
6:05
6:06
6:07
6:07
6:07
6:08
 mm
1
2
3
1
12
3
2
1
7
Temp °C
18
15
16
18
18
15
13
13
13
15
16
15
19
14
14
14
15
14
15
15
16
Feels °C
13
11
11
14
14
10
1
2
3
10
11
10
8
3
5
6
7
8
11
11
13
  • 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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