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Surf Forecasts:

Cunns surfForecast / SA – Nullarbor / Australia

information circle12 Day Weather and Surf, issued 9 pm Thursday 20 Nov 2025 ACDT
Forecast update in hr  min  s Forecast update imminent
Cunns surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Cunns sea temperature is
18.5° C
 (Which is 1.1°C warmer than normal for this time of year)

Best Forecast Surf Conditions for Cunns this week:

The surf forecast for Cunns over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Nov 23) at 7AM. The primary swell is predicted to be 0.9m and 10s period with a secondary swell of 0.6m and 5s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Cunns in the next 12 days are 2.5m 13s and forecast to arrive on Wednesday (Nov 26) at 10AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 6s period and expected on Friday (Nov 21) at 7PM.

Wave TypeTime (ACDT) & Date Wave Height & Period
Next good surf (1 star+) 7AM (Sun 23rd Nov)3ft (0.9m) 10s
Best Surf 7AM (Sun 23rd Nov)3ft (0.9m) 10s
Most Powerful10AM (Wed 26th Nov)8ft (2.5m) 13s

Table - best surf conditions forecast for Cunns over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Light rain (total 5mm), mostly falling on Fri morning. Warm (max 29°C on Fri afternoon, min 15°C on Thu night). Winds decreasing (strong winds from the SE on Thu night, light winds from the ESE by Sat night).

Days 3-6 Weather Summary Mostly dry. Warm (max 22°C on Tue morning, min 16°C on Mon night). Winds increasing (calm on Mon night, fresh winds from the SSW by Tue night).

Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thu
27
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
3
2
2
0
0
0
0
2
0
0
0
0
0
2
1
0
0
0
1
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.5
SW
1.3
SSW
1.3
SSW
0.8
SW
0.8
SSW
1.4
WSW
1.2
SW
0.9
SSW
1
SSW
0.4
SW
0.9
SSW
0.8
SSW
0.3
SW
0.9
SW
1.3
SW
1.8
SW
2.5
SW
2.2
SW
1.6
SW
1.1
SW
1.1
SW
Period(s) (?)14141312121110101313129121412111312111010
Wave
Graph
(?)Metric surfscale
Energy kJ (?)88661753818117146930216833149230862329747376620711427574271226
Wind
(km/h)
30
ESE
35
E
30
E
30
NE
35
WNW
35
W
20
WSW
15
ESE
35
SSE
20
S
25
WSW
25
SW
20
SSW
5
N
20
S
30
SW
35
WSW
35
SW
20
SSW
20
SSW
25
SSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
offoffoffcross-
off		oncross-
on		cross-
on		offcross-
off		cross-
off		cross-
on		cross-
on		crossglasscross-
off		crosscross-
on		cross-
on		crosscrosscross
High Tide
/ height (m)
1:14AM
1.42
1:13PM
0.89
1:35AM
1.44
1:31PM
0.88
1:58AM
1.43
1:51PM
0.85
2:22AM
1.39
2:12PM
0.81
2:50AM
1.33
2:34PM
0.74
3:20AM
1.24
2:57PM
0.66
3:55AM
1.11
3:13PM
0.56
Low Tide
/ height (m)
7:44AM
0.09
6:56PM
-0.01
8:05AM
0.11
7:16PM
-0.02
8:28AM
0.14
7:37PM
-0.01
8:54AM
0.19
7:58PM
0.03
9:26AM
0.26
8:20PM
0.10
10:05AM
0.35
8:38PM
0.21
11:07AM
0.45
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thu
27
Sunrise-6:26--6:26--6:26--6:26--6:24--6:24--6:24-
Sunset--8:20--8:21--8:22--8:22--8:22--8:23--8:24
cloud
rain showers
rain showers
rain showers
clear
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
cloud
clear
clear
Rain (mm)
-212-----------------
Temp. °C172529252320172221182019182221171718161716
Feels °C (?)102224201815142016141716161918111112111311
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

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Quiksilver Teams Up With PrimaLoft® For World’s First Thermal Layering System for a Wetsuit.

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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Cunns surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.

View detailed surf forecast for Cunns at:
surf-forecast.com

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 12 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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