Cactus Surf Break

Lat Long: 32.09° S 132.98° E

Cactus Surf Forecast and Surf Report

Issued: 8 pm 15 Sep 2026 (local time)

Forecast update in  hr  min

Today's Cactus sea temperature is
15.9°C
0.3° 

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


Cactus surf forecast from 15 Sep 2026:

  • Best quality surf: Tuesday 22 Sep, 12PM (local time) - 5ft (1.6m), 15s period, SW swell with cross-offshore winds.
  • Most powerful swell: Wednesday 16 Sep, 6AM (local time) - 6ft (1.8m), 15s period, SW swell with 1,343 kJ wave energy.
  • Next surfable swell (1★+): Thursday 17 Sep, 3AM (local time) - 5ft (1.5m), 15s 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 Thursday (Sep 17) at 3AM. The primary swell is predicted to be 1.5m and 15s period. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Cactus in the next 16 days are 1.8m 15s and forecast to arrive on Wednesday (Sep 16) at 6AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Wednesday (Sep 16) at 6PM.

Wave TypeTime (ACST) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Thu 17th Sep)5ft (1.5m) 15s
Best Surf12PM (Tue 22nd Sep)5ft (1.6m) 15s
Most Powerful 6AM (Wed 16th Sep)6ft (1.8m) 15s

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


The Lowdown

Alright, let me tell you about the upcoming surf at Cactus.

We’ve got a bit of a mixed bag coming down the line here, but there are a couple of sessions that are gonna make it all worth it. The coming days start off with some pretty serious swell, but the wind is a real problem early on.

Wednesday the 16th is a write-off for me. We’re looking at a solid 6ft swell from the southwest, but that 30 km/h cross-off wind from the east-southeast just kills it. The ocean’s got a heap of energy, but it’s messy. Not worth paddling out.

Thursday the 17th is where we get our first real look. The morning is the standout here. The swell drops a touch to 5ft, still from the southwest, but the wind swings to a light offshore from the northeast at 20 km/h. That’s clean, lined-up surf. The 14-second period gives it some push. This is a proper intermediate wave. It won’t be too crowded as it’s only *sometimes* busy, so you should be able to find a few peaks to yourself. This is one of the true highlights of the window.

After that, we hit a dry spell. From Friday the 18th right through the weekend and into Monday the 21st, the swell just drops away to nothing. We’re talking knee-high slop with onshore and cross-shore winds. Don’t bother. That’s a four-day gap with nothing to recommend.

Monday the 21st morning offers a little glimmer. A pulse of 4ft southwest swell with a light east cross-off wind gives us some clean, fun waves, but it’s not big enough to get too excited about.

The next real standout comes on Tuesday the 22nd. The morning session sees the swell jump back up to 5ft from the southwest, with a 15-second period and a gentle east cross-off breeze. The conditions will be clean. This is a quality wave, though it’s reported as a bit marginal on the tide, so pick your time.

We get another lull until Friday the 25th morning. A clean 3ft southwest groundswell with a light offshore from the east-northeast. Small but perfectly clean. A nice morning session for a log or a fish.

Now, the last week of the month is where the real interest lies. Saturday the 26th is a no-go for paddle surfing. We’ve got a huge, long-period groundswell (21 seconds!) pushing in at 4ft in the morning, but the wind is a messy 35 km/h cross-shore. That energy level is massive, but on a beach setup with that wind, it’s actually more of a kite-surfing day.

The same goes for Sunday the 27th – 7ft onshore slop. Leave it.

But then… Monday the 28th. The swell is pumping at 7ft from the southwest with a 14-second period, and the energy is through the roof. The wind is moderate cross-shore, making it a bit lumpy. This is strictly for experts. If you’ve got the skills, you’ll find some freight trains.

The absolute best of the whole forecast is the final two days. Tuesday the 30th of September and Wednesday the 1st of October are the pinnacle. On the 30th, we’ve got a 6ft southwest groundswell with a 18-second period and a glassy light east-southeast cross-off wind. The forecast says it’s excellent for experienced surfers. Then on Wednesday the 1st of October, it’s holding at 5ft from the southwest with a 17-second period, clean with a gentle east cross-off. This is the stuff dreams are made of. A long period swell like that (over 15 seconds) will really stand up and barrel on a reef like Cactus. If you can, plan to be in the water for that last week.

-Rusty

Short Range Forecast

Mostly dry. Warm (max 27°C on Fri afternoon, min 9°C on Tue night). Winds decreasing (fresh winds from the SE on Tue night, light winds from the NE by Thu morning).

Days 5-7 Weather Summary

Mostly dry. Warm (max 31°C on Sat afternoon, min 13°C on Sun night). Winds decreasing (fresh winds from the N on Sat morning, light winds from the E by Mon morning).

Wednesday
16
Thursday
17
Friday
18
Saturday
19
Sunday
20
Monday
21
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
3
2
1
0
0
0
0
0
1
0
0
1
2
1
2
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
15
1.7
SW
15
1.6
SW
15
1.5
SW
15
1.4
SW
14
1.1
SW
14
0.9
SW
13
0.8
SW
15
0.7
SW
15
0.6
SW
14
0.5
SW
13
0.5
SW
13
0.9
SW
17
0.8
SW
16
0.8
SW
15
1.3
SW
12
1.2
SW
13
1.1
SW
13
1.5
SW
15
Wave Graph
Metric surfscale
Energy kJ
1011
1246
1169
975
742
485
290
322
212
127
88
84
505
306
269
448
488
424
924
Wind (km/h)
30
ESE
30
ESE
30
SE
25
E
20
NE
10
ESE
15
NE
30
N
20
NNW
20
NNE
35
N
30
NNW
25
N
10
SSW
20
SSW
15
S
10
E
20
S
20
SE
Wind State
cross-off
cross-off
cross-off
cross-off
off
cross-off
cross-off
cross-off
cross
cross-off
cross-off
cross
cross-off
cross-on
cross-on
cross
cross-off
cross
cross-off
High Tide
1:48AM1.30m
1:29PM1.04m
2:06AM1.24m
1:37PM0.97m
2:22AM1.15m
1:38PM0.90m
2:36AM1.02m
1:21PM0.83m
2:39AM0.88m
12:30PM0.81m
2:04AM0.75m
11:30AM0.89m
00:39AM0.70m
Low Tide
7:53AM0.17m
7:36PM-0.05m
8:08AM0.26m
7:47PM0.01m
8:19AM0.37m
7:53PM0.09m
8:21AM0.50m
7:48PM0.18m
7:48AM0.62m
7:19PM0.24m
6:05AM0.64m
6:31PM0.25m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:35
6:35
6:33
6:31
6:31
6:30
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:29
6:30
6:30
6:30
6:30
6:31
6:32
 mm
Temp °C
12
14
16
14
18
21
21
23
27
26
28
31
30
16
16
15
17
16
14
Feels °C
6
9
9
9
14
17
16
16
22
20
19
25
23
13
12
13
14
13
11
  • 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 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.

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