Cactus surfForecast / SA – Nullarbor / Australia

information circle12 Day Weather and Surf, issued 3 am Thursday 25 Dec 2025 ACDT
Forecast update in hr  min  s Forecast update imminent
Cactus surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Cactus sea temperature is
20.6° C
(Which is 1.9°C warmer than normal for this time of year)


Best Forecast Surf Conditions for Cactus this week:

The surf forecast for Cactus over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Dec 27) at 1AM. The primary swell is predicted to be 0.6m and 17s period with a secondary swell of 0.9m and 6s. Another secondary swell of 0.6m and 12s is also forecast. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Cactus in the next 12 days are 1.7m 13s and forecast to arrive on Wednesday (Dec 31) at 4PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 6s period and expected on Thursday (Dec 25) at 10AM.

Wave TypeTime (ACDT) & Date Wave Height & Period
Next good surf (1 star+) 1AM (Sat 27th Dec)2ft (0.6m) 17s
Best Surf 1AM (Sat 27th Dec)2ft (0.6m) 17s
Most Powerful 4PM (Wed 31st Dec)5.5ft (1.7m) 13s

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

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Mostly dry. Warm (max 34°C on Sat morning, min 15°C on Thu night). Winds decreasing (strong winds from the SE on Thu afternoon, calm by Sat night).

Days 3-6 Weather Summary Mostly dry. Warm (max 33°C on Sun morning, min 15°C on Tue night). Winds increasing (calm on Sun morning, strong winds from the S by Tue afternoon).

Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
1
0
0
1
0
2
0
0
0
1
0
1
2
0
0
0
0
0
1
0
0
Swell
Height Map
Wave Height (m) & direction (?)
1.4
SW
1.4
SW
1.1
SW
1.2
SSW
0.9
SSW
0.6
SW
0.7
SW
0.6
SW
0.6
SW
0.6
SW
0.6
SW
1.5
SW
1.3
SW
1.6
SW
1.6
SSW
1.8
SSW
1.9
SSW
1.6
S
1.5
S
1.7
SSW
1.6
SSE
Period(s) (?)1413131212171616151414131312127788137
Wave
Graph
(?)Metric surfscale
Energy kJ (?)7337013694192471832512011341301607785437427013213162923021042239
Wind
(km/h)
35
ESE
35
SSE
35
ESE
25
E
30
SE
20
E
30
NNE
25
SSE
20
E
5
NW
20
SSW
20
S
25
SE
35
SSW
35
S
35
S
45
S
35
SSE
30
SE
35
SSE
35
SE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
crosscross-
off
offcross-
off
offcross-
off
crosscross-
off
glasscross-
on
crosscross-
off
cross-
on
crosscrosscrosscrosscross-
off
crosscross-
off
High Tide
/ height (m)
3:35PM
0.75
4:00AM
1.19
4:14PM
0.71
4:28AM
1.02
5:10PM
0.68
4:46AM
0.83
9:01PM
0.68
11:21PM
0.88
12:11PM
0.54
11:56PM
1.07
12:49PM
0.56
12:29AM
1.24
Low Tide
/ height (m)
9:11PM
0.19
10:45AM
0.28
9:43PM
0.32
11:21AM
0.36
10:16PM
0.49
12:03PM
0.43
2:01PM
0.48
7:15AM
0.41
4:23PM
0.45
7:28AM
0.27
5:15PM
0.38
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
Sunrise6:30--6:30--6:31--6:31--6:31--6:33--6:33--
Sunset-8:45--8:45--8:45--8:45--8:45--8:46--8:46-
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
part cloud
part cloud
cloud
part cloud
clear
part cloud
part cloud
part cloud
clear
clear
Rain (mm)
---------------------
Temp. °C191918262625343328332619221917181716171615
Feels °C (?)13131221201929262229231719141312991088
  • 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 Cactus Surf forecast

The above surf forecast table for Cactus provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Cactus can be found by selecting the local surf guide option on the grey menu. Our Cactus 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 (Cactus) 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 Cactus 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 Cactus, camping, hotels and holiday cottages in Nullarbor, consider staying in Thevenard which is 63 km (39 miles) away.

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