Cunns Surf Break

Lat Long: 32.10° S 132.98° E

Cunns Surf Forecast and Surf Report

Issued: 2 am 04 Aug 2026 (local time)

Forecast update in  hr  min

Today's Cunns sea temperature is
15.4° C
0.5° 

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


Cunns surf forecast from 3 Aug 2026:

  • Best quality surf: Thursday 6 Aug, 3PM (local time) - 4.5ft (1.4m), 16s period, SW swell with cross-offshore winds.
  • Most powerful swell: Sunday 9 Aug, 9PM (local time) - 11ft (3.5m), 18s period, SW swell with 6,585 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 4 Aug, 3PM (local time) - 2.5ft (0.8m), 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 Tuesday (Aug 04) at 3PM. The primary swell is predicted to be 0.8m and 15s period with a secondary swell of 0.7m and 10s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Cunns in the next 16 days are 3.5m 18s and forecast to arrive on Sunday (Aug 09) at 9PM. 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 3s period and expected on Wednesday (Aug 05) at 12AM.

Wave TypeTime (ACST) & Date Wave Height & Period
Next good surf (1 star+) 3PM (Tue 4th Aug)2.5ft (0.8m) 15s
Best Surf 3PM (Thu 6th Aug)4.5ft (1.4m) 16s
Most Powerful 9PM (Sun 9th Aug)11ft (3.5m) 18s

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


The Lowdown

Right, grab a coffee, let’s see what’s doing for Cunns over the next couple of weeks.

First up, we’ve got a solid reef break here – Cunns – and it’s an exposed spot that loves a good SW groundswell. The water is sitting at 60°, which is about average for the time of year, so no major surprises there. The trouble is, this spot is famously inconsistent, so when it fires, it’s a treat, but there are going to be plenty of flat spells.

The first good window kicks off on Tuesday morning, the 4th of August. We’ve got a clean 4 ft SW swell with a 12-second period. The energy is moderate (548), and with a light cross-off breeze, it’s setting up nicely. But honestly, the real magic is that Tuesday afternoon. The wind drops to glassy, the swell settles to 3 ft, and the period stretches out to a very long 15 seconds. That’s proper groundswell, and for a reef, that’s going to mean some lined-up, peeling waves. Crowds are sometimes an issue here, so keep an eye out.

Wednesday the 5th is a write-off – messy cross-shore, lumpy, not worth the paddle.

Thursday the 6th is the standout. Thursday morning is glassy again, with a 4 ft SW swell at 16 seconds. The energy is moderate (570), but the conditions are clean. Thursday afternoon gets even better: 5 ft, 16-second period, clean cross-off wind, and the wave energy jumps to a solid 1032. This is excellent surf for experienced surfers. The wave quality is high, and the wind is your friend.

Friday the 7th starts to get a bit hairy with strong cross-shore winds and building swell, but by the afternoon we’re looking at 6 ft with a 17-second period. The wind is onshore though, so it’s going to be a bit of a mess. The energy is massive (3497), but the quality is gone.

From Saturday the 8th right through to the middle of the next week, it’s a no-go zone. The swell gets big – 8 ft, 10 ft – but the wind is howling onshore, often cross-on, and it’s just lumpy, messy, and dangerous. The wave energy readings are huge (over 4000 at times), but that’s just raw power with no shape. Honestly, for a beach or reef setup, this is more of a kite-surfing or tow-in situation than a paddle session. There’s a big gap of about 5 days with no real quality.

Then, on Wednesday the 12th of August, things start to settle. The swell is still big at 10 ft, but the wind eases to a gentle cross-shore and the period is a very long 18 seconds. The energy is still massive (4864), but the conditions are only marginal. It’s a big, powerful groundswell that might be too straight for the reef, but if you’re an expert, it could be worth a look for the power alone.

Thursday the 13th and Friday the 14th are smaller, with 6 ft to 7 ft swell, but the wind is light cross-on, so it’s choppy. Not the best.

Now, the final standout of the whole forecast is Saturday the 15th of August. Saturday afternoon, the wind goes glassy, the swell is 6 ft from the SW with a 17-second period, and the energy is solid (1682). This is excellent surf for experienced surfers. The wave quality is there, the wind is perfect, and it’s a rare moment of clean, lined-up swell at an inconsistent spot. This is the one to circle.

Sunday the 16th is okay, but the wind picks up again. After that, it’s a slow decline into poor conditions for the rest of the run.

So, to wrap it up: the best bet is Thursday the 6th of August, with clean glassy conditions and a nice 5 ft groundswell. The other standout is Saturday the 15th of August afternoon, with glassy conditions and a solid 6 ft swell. The rest of the fortnight is a mix of big, messy swells and a lot of waiting. Stick to those two windows, and you’ll get some good ones.

Rusty.

Short Range Forecast

Mostly dry. Very mild (max 18°C on Tue afternoon, min 11°C on Tue morning). Wind will be generally light.

Days 4-6 Weather Summary

Moderate rain (total 14mm), heaviest on Sat night. Warm (max 21°C on Fri morning, min 11°C on Sun night). Winds increasing (light winds from the E on Fri night, near gales from the WSW by Sat night).

Tuesday
4
Wednesday
5
Thursday
6
Friday
7
Saturday
8
Sunday
9
Monday
10
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
2
2
1
1
3
3
4
4
1
2
3
0
0
0
0
0
2
0
0
0
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
12
0.8
SW
15
0.9
SW
15
0.7
SW
19
1.1
SW
18
1.1
SW
16
1.1
SW
16
1.4
SW
16
1.7
SW
15
1.6
SW
16
1.8
SW
17
1.5
SW
16
1.5
SW
16
1.8
SW
15
3
WSW
9
3
SW
12
3
SW
14
2.5
SW
18
2.4
WSW
17
3
SW
16
3.5
SW
16
Wave Graph
Metric surfscale
Energy kJ
319
258
335
361
694
581
567
1014
1349
1287
1927
1201
1068
1547
1346
2524
2971
3790
3224
4474
5334
Wind (km/h)
20
NE
5
NE
15
NE
20
NNE
15
SW
10
S
5
ESE
15
S
10
ENE
30
NNE
15
NW
25
NE
35
NNW
25
W
55
WSW
45
WSW
35
SW
15
WNW
25
NW
30
W
30
SW
Wind State
cross-off
glassy
cross-off
cross
cross-on
cross-off
glassy
cross-off
cross-off
cross
on
cross-off
cross-on
on
cross-on
cross-on
cross-on
on
cross-on
on
cross-on
High Tide
2:45PM1.07m
3:17AM1.01m
2:52PM0.90m
3:49AM0.95m
2:24PM0.75m
4:31AM0.85m
11:17AM0.96m
2:07AM0.58m
11:38AM1.14m
1:00AM0.58m
12:03PM1.28m
00:48AM0.63m
Low Tide
9:00PM0.13m
9:12AM0.35m
9:08PM0.19m
9:37AM0.53m
8:59PM0.25m
9:18AM0.74m
8:14PM0.26m
7:25PM0.20m
4:19AM0.56m
7:12PM0.14m
5:06AM0.41m
7:16PM0.11m
clear
part cloud
cloud
cloud
clear
clear
clear
clear
clear
cloud
light rain
light rain
light rain
rain showers
rain showers
part cloud
part cloud
clear
part cloud
part cloud
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:24
7:24
7:22
7:22
7:22
7:20
7:20
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:02
6:02
6:04
6:05
6:05
6:06
6:07
 mm
1
2
2
2
7
1
Temp °C
16
18
18
17
18
16
16
16
17
21
21
19
18
18
13
13
14
14
15
16
13
Feels °C
13
16
13
12
14
14
15
13
12
13
16
10
12
14
3
4
6
10
8
9
7
  • 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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