Cunns surfForecast / SA – Nullarbor / Australia

information circle12 Day Weather and Surf, issued 9 am Wednesday 10 Dec 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
19.9° C
(Which is 1.7°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 Thursday (Dec 11) at 1PM. The primary swell is predicted to be 0.8m and 13s period. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Cunns in the next 12 days are 2.0m 13s and forecast to arrive on Wednesday (Dec 10) at 7PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 6s period and expected on Thursday (Dec 11) at 4PM.

Wave TypeTime (ACDT) & Date Wave Height & Period
Next good surf (1 star+) 1PM (Thu 11th Dec)2.5ft (0.8m) 13s
Best Surf 1PM (Thu 11th Dec)2.5ft (0.8m) 13s
Most Powerful 7PM (Wed 10th Dec)6.5ft (2.0m) 13s

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

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Mostly dry. Warm (max 32°C on Thu morning, min 17°C on Fri night). Winds decreasing (strong winds from the SE on Wed afternoon, light winds from the SSE by Thu night).

Days 3-6 Weather Summary Mostly dry. Very mild (max 17°C on Sat morning, min 14°C on Mon night). Mainly strong winds.

Wednesday
10
Thursday
11
Friday
12
Saturday
13
Sunday
14
Monday
15
Tuesday
16
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
1
1
1
1
0
2
0
1
0
0
0
0
0
1
2
2
0
1
2
0
1
Swell
Height Map
Wave Height (m) & direction (?)
1.3
SW
1.7
SSW
1.7
S
0.8
SW
0.8
SW
0.8
SW
1.4
SSW
1.6
SSW
1.4
S
0.5
SW
0.8
SW
0.8
SW
0.8
SW
1.2
SSW
1.2
SW
1.4
SW
1.2
SW
1
SW
1.1
SSW
0.9
SW
0.7
SW
Period(s) (?)1413813131313137151312121214141312111110
Wave
Graph
(?)Metric surfscale
Energy kJ (?)6231026368224235250690812173118246184172378590733459272302205110
Wind
(km/h)
40
ESE
45
SSE
40
SE
25
E
30
SE
10
SSE
30
WSW
35
SSW
25
SSE
25
SSE
35
S
25
SSE
25
S
30
S
25
SSE
30
SE
40
SSE
35
ESE
25
ESE
30
SSE
15
ESE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
offcross-
off
offoffcross-
off
cross-
off
cross-
on
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
offcross-
off
offoffcross-
off
off
High Tide
/ height (m)
2:23PM
0.71
3:15AM
1.05
2:53PM
0.68
3:24AM
0.95
3:30PM
0.62
3:18AM
0.85
1:57AM
0.78
12:04AM
0.85
10:52AM
0.57
11:53PM
0.98
11:36AM
0.63
12:06AM
1.11
Low Tide
/ height (m)
8:18PM
0.22
9:49AM
0.42
8:32PM
0.34
10:16AM
0.43
8:24PM
0.48
10:56AM
0.46
3:40PM
0.46
7:16AM
0.52
4:31PM
0.38
6:46AM
0.42
5:04PM
0.31
Wednesday
10
Thursday
11
Friday
12
Saturday
13
Sunday
14
Monday
15
Tuesday
16
Sunrise6:24--6:24--6:24--6:24--6:24--6:24--6:26--
Sunset-8:36--8:37--8:37--8:37--8:38--8:38--8:39-
clear
part cloud
part cloud
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
Rain (mm)
---------------------
Temp. °C312522323122212018171716171716171717222022
Feels °C (?)251716292619181513131111121211111011171417
  • Map Icons:
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  • 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 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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