Cactus Surf Break

Lat Long: 32.09° S 132.98° E

Cactus Surf Forecast and Surf Report

Issued: 2 am 31 Aug 2026 (local time)

Forecast update in  hr  min

Today's Cactus sea temperature is
15.5°C
0.0° 

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


Cactus surf forecast from 30 Aug 2026:

  • Best quality surf: Saturday 5 Sep, 9PM (local time) - 8ft (2.5m), 16s period, SW swell with offshore winds.
  • Most powerful swell: Saturday 5 Sep, 3PM (local time) - 8ft (2.5m), 16s period, SW swell with 3,761 kJ wave energy.
  • Next surfable swell (1★+): Monday 31 Aug, 6AM (local time) - 4.5ft (1.3m), 16s period with SW swell.

Best Forecast Surf Conditions for Cactus this week:

The surf forecast for Cactus over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Aug 31) at 6AM. The primary swell is predicted to be 1.3m and 16s period with a secondary swell of 0.8m and 19s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Cactus in the next 16 days are 2.5m 16s and forecast to arrive on Saturday (Sep 05) at 3PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Tuesday (Sep 01) at 6AM.

Wave TypeTime (ACST) & Date Wave Height & Period
Next good surf (1 star+) 6AM (Mon 31st Aug)4.5ft (1.3m) 16s
Best Surf 9PM (Sat 5th Sep)8ft (2.5m) 16s
Most Powerful 3PM (Sat 5th Sep)8ft (2.5m) 16s

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


The Lowdown

Alright, Rusty here. Let's break down what's on the table for Cactus.

The coming days are looking a bit like a mixed bag, but there are definitely some windows to get excited about. The overall pattern starts off with some solid, clean groundswell, then gets a bit messy with onshore winds before cleaning up again for some real standout sessions later on.

Right now, Sunday the 30th of August is on the cards. We've got a long-period 4ft SW groundswell rolling in, with a period of 19 seconds. That's proper energy, with combined swell energy at 1016 (moderate). The wind is a gentle offshore from the east, keeping things glassy. The water temp is sitting at 60°, which is about average for the time of year. This is excellent, clean surf, but it's a reef break, and the 4ft on a long period might be a bit walled at a beachie, but for a reef, it’ll be peeling nicely.

We hit a rough patch from Tuesday the 1st of September through to the middle of the following week. The wind turns onshore and gets strong, and the surf gets lumpy and blown out. Tuesday morning looks clean but the swell drops right off to 4ft with a short period, and then the onshores kill it for the next few days. There's a short gap of a few days with nothing really worth paddling out for.

Thursday the 3rd of September morning is a bit of a tease. The wind goes light offshore from the north, and the swell is a consistent 5ft from the SW, but the period has dropped to 14 seconds. The combined energy is moderate at 975. It’s a clean, surfable wave, but not a standout.

Now, for the real deal. We’ve got a promising stretch starting Sunday the 13th of September. The morning sees a 8ft SW groundswell with a 17-second period, and the wind is a clean cross-offshore from the NNE. The combined energy is very strong at 5785. This is a big, powerful swell for experienced surfers only. The afternoon cleans up even more with a lighter 7ft swell and offshore winds. That Sunday afternoon session is one of the best on offer.

Then Monday the 14th of September morning still has some size, with an 8ft SW swell, but the wind is a fresh cross-offshore, so it’ll be clean but getting a bit on the bigger side. The combined energy is 2458 (strong). By the afternoon, the wind swings onshore and ruins it, so get it early.

The Standout: Without a doubt, Sunday the 13th of September is the session to circle. The combination of a very long-period SW groundswell (7ft - 8ft), combined with light to moderate cross-offshore winds from the NNE, is going to produce some of the best, cleanest waves of the forecast period at Cactus. The reef will handle the long-period energy perfectly, giving you proper, lined-up waves. Get on it.

Cactus is a fairly consistent reef, so it doesn't stay flat for long, and crowds are possible here.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 25°C on Tue morning, min 13°C on Tue night). Winds decreasing (fresh winds from the N on Mon night, calm by Wed night).

Days 4-6 Weather Summary

Light rain (total 4mm), mostly falling on Thu night. Warm (max 22°C on Fri morning, min 13°C on Sat night). Mainly strong winds.

Monday
31
Tuesday
1
Wednesday
2
Thursday
3
Friday
4
Saturday
5
Sunday
6
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
3
4
2
0
0
0
0
0
3
2
3
2
2
0
0
0
3
4
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)
1.6
SW
19
1.6
SW
18
1.3
SW
16
1.2
SW
16
0.9
SW
15
1.5
SW
16
1.2
SW
16
1.6
SW
14
1.7
SW
14
1.6
SW
14
1.7
SW
14
2.1
SW
15
2
SW
15
2.4
SW
15
1.9
SW
15
2.4
SW
16
2.5
SW
16
2.3
SW
16
2.2
WSW
15
3
WSW
14
3
SW
12
Wave Graph
Metric surfscale
Energy kJ
1642
1453
909
692
355
1123
692
1094
1196
990
1029
1882
1706
2517
1568
2901
3761
2736
2015
3331
2449
Wind (km/h)
20
NE
15
N
25
N
35
NNW
20
WSW
25
SW
20
W
30
WSW
5
WNW
10
NNW
15
S
30
NNE
20
NNW
35
W
25
WSW
20
WSW
15
WSW
20
ENE
45
N
60
WSW
50
SW
Wind State
cross-off
cross-off
cross-off
cross
on
cross-on
on
on
cross-on
cross
cross
cross-off
cross
on
on
on
on
off
cross-off
on
on
High Tide
1:40PM1.24m
1:55AM1.26m
1:54PM1.12m
2:17AM1.24m
2:01PM0.98m
2:38AM1.18m
1:55PM0.86m
2:56AM1.07m
1:20PM0.80m
3:04AM0.92m
12:18PM0.85m
2:38AM0.77m
11:43AM0.99m
1:29AM0.68m
Low Tide
7:45PM-0.04m
8:01AM0.06m
7:57PM-0.01m
8:24AM0.19m
8:04PM0.03m
8:42AM0.36m
8:05PM0.07m
8:45AM0.54m
7:54PM0.11m
7:58AM0.69m
7:31PM0.13m
6:09AM0.69m
7:06PM0.13m
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
clear
part cloud
clear
part cloud
rain showers
part cloud
clear
clear
clear
clear
clear
mod rain
rain showers
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:56
6:56
6:54
6:52
6:52
6:50
6:48
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:20
6:20
6:21
6:22
6:22
6:22
6:23
 mm
4
6
4
2
Temp °C
21
24
24
25
18
15
14
14
14
18
18
18
22
18
15
15
15
16
21
13
14
Feels °C
16
19
19
17
15
11
8
8
11
16
15
15
17
12
9
10
12
7
11
1
5
  • 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
How to use the Wavefinder 
submit an eyeball surf report

Quick surf report for Cactus:

join our community of surf reporters

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Cactus 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.


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 16 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.

Nearest locationNearest