Cactus Surf Break

Lat Long: 32.09° S 132.98° E

Cactus Surf Forecast and Surf Report

Issued: 8 pm 30 Jul 2026 (local time)

Forecast update in  hr  min

Today's Cactus sea temperature is
15.5° C
0.4° 

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


Cactus surf forecast from 30 Jul 2026:

  • Best quality surf: Friday 7 Aug, 12AM (local time) - 5ft (1.6m), 15s period, SW swell with offshore winds.
  • Most powerful swell: Sunday 2 Aug, 9PM (local time) - 6.5ft (2.0m), 16s period, SW swell with 1,929 kJ wave energy.
  • Next surfable swell (1★+): Friday 31 Jul, 6AM (local time) - 3.5ft (1.0m), 13s 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 Friday (Jul 31) at 6AM. The primary swell is predicted to be 1.0m and 13s period with a secondary swell of 0.3m and 21s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Cactus in the next 16 days are 2.0m 16s and forecast to arrive on Sunday (Aug 02) at 9PM. Winds are predicted to be cross-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 Saturday (Aug 01) at 9AM.

Wave TypeTime (ACST) & Date Wave Height & Period
Next good surf (1 star+) 6AM (Fri 31st Jul)3.5ft (1.0m) 13s
Best Surf12AM (Fri 7th Aug)5ft (1.6m) 15s
Most Powerful 9PM (Sun 2nd Aug)6.5ft (2.0m) 16s

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


The Lowdown

Alright, Rusty here, checking in on the surf for Cactus.

We’ve got a run of cleaner, more manageable surf coming up, but the big news is what’s brewing for the second week. The standout window is looking like Thursday, August 14th, and Friday, August 15th, but we have to get through a bit of a rough stretch first.

The week starts off okay. Friday morning, July 31st, we’ve got a clean 3ft SW swell with a 13-second period, but the cross-off wind is a bit stiff at 12 mph. The combined energy is moderate (480). The afternoon cleans up nicely with a gentle breeze and a 3ft SW swell at 14 seconds, energy picking up to 604. It’s clean, but not huge.

Saturday, August 1st, the swell bumps up to 4ft from the SW, period jumps to 17 seconds, and the energy is solid (765). The morning has a fresh cross-off breeze, but by the afternoon, the wind goes cross and the chop picks up, making it a bit messy. Sunday, August 2nd, is a write-off. The swell is over 5ft, but the wind is onshore and strong, with waves up to 6ft. It’s a choppy, blown-out mess, not worth paddling for. The combined energy is strong (1253-1271), but the quality is poor. This is a gap of several days of poor quality.

Monday, August 3rd, offers a bit of hope. The morning has a light cross breeze and a 6ft SW swell, but the energy is high (1179). The wind is light, but the cross-shore angle makes it marginal. The afternoon turns choppy again.

Now, here’s where it gets interesting. Tuesday, August 4th, is a proper gem. We get a clean 4ft SW swell, but look at the wind: a solid offshore breeze from the NE at 12 mph. The waves are clean, and the energy is still moderate (823). That offshore wind is the key. The afternoon stays clean with a cross-off breeze.

Wednesday, August 5th, the morning is clean again with a 3ft SW swell, but the period is a very long 19 seconds. This is a groundswell, and while it brings plenty of energy (827), that long period can make it break a bit straight at a beach. It’s still a good bet.

Thursday, August 6th, is another clean morning with a 4ft SW swell at 16 seconds, light offshore wind, and moderate energy (853). The afternoon stays clean, but gets a little cross-chop.

The real prize is the end of the second week. On Thursday, August 14th, we’ve got excellent surf. The morning brings a clean 7ft SW swell from the SW with a very long 18-second period, and a gentle cross-off breeze. The combined energy is very strong (2546). This is a big, powerful groundswell. The afternoon is even better: glassy conditions with a 6ft SW swell, 18-second period, and a slight air. The energy is still very strong (2210). This is the best on offer – clean, powerful, and long-period. It’s a bit too big for beginners, but for experienced surfers, it’s a dream.

Friday, August 15th, the morning is still very good, with a 6ft SW swell, 16-second period, and a cross-off breeze. The energy is massive (3032). Cactus is a reef break, so that long-period groundswell will wrap in nicely and produce some proper lines. Crowds are “sometimes” an issue here, but on a day like this, it’s worth the crowd.

Overall, the surf is on the up. The first week has clean windows, but the second week is where the real size and quality comes in. The water temp is about average for the time of year, no major anomaly to report.

Rusty out.

Short Range Forecast

Mostly dry. Very mild (max 18°C on Sat afternoon, min 11°C on Sat morning). Mainly fresh winds.

Days 5-7 Weather Summary

Mostly dry. Very mild (max 18°C on Wed morning, min 10°C on Mon night). Wind will be generally light.

Friday
31
Saturday
1
Sunday
2
Monday
3
Tuesday
4
Wednesday
5
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
1
3
2
1
2
2
1
0
1
3
2
3
3
3
2
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)
1.1
SW
13
0.9
SW
13
0.9
SW
14
0.7
SW
18
1.1
SW
17
1.4
SW
17
1.4
SW
16
1.6
WSW
15
1.7
SW
15
2
SW
16
1.7
SW
14
1.6
SW
14
1.3
SW
13
1.1
SW
12
1.1
SW
15
0.9
SW
15
0.9
SW
19
1.3
SW
18
1.2
SW
16
Wave Graph
Metric surfscale
Energy kJ
431
299
327
307
760
1081
1029
1193
1271
1880
1179
924
609
303
499
375
595
985
737
Wind (km/h)
15
E
20
NNE
15
NNE
20
NNE
30
N
25
NNW
30
N
20
W
30
WSW
20
SW
10
S
15
S
15
E
20
NE
15
N
20
NE
20
NE
20
WSW
10
SSW
Wind State
off
cross-off
cross-off
cross-off
cross-off
cross
cross-off
cross-on
on
cross-on
cross
cross-on
cross-off
off
cross-off
cross-off
cross-off
on
cross-on
High Tide
1:08AM0.91m
1:22PM1.42m
1:30AM0.97m
1:44PM1.40m
1:55AM1.02m
2:06PM1.33m
2:21AM1.04m
2:27PM1.22m
2:48AM1.04m
2:45PM1.07m
3:17AM1.01m
2:52PM0.90m
Low Tide
6:50AM0.01m
7:50PM0.04m
7:16AM-0.00m
8:08PM0.03m
7:44AM0.02m
8:27PM0.04m
8:13AM0.09m
8:45PM0.08m
8:43AM0.19m
9:00PM0.13m
9:12AM0.35m
9:08PM0.19m
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
part cloud
clear
clear
part cloud
cloud
part cloud
cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:28
7:26
7:26
7:26
7:24
7:24
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:00
6:00
6:00
6:00
6:01
6:02
6:02
 mm
Temp °C
13
15
16
16
15
18
18
15
15
14
15
14
13
14
17
16
18
18
15
Feels °C
9
10
11
11
7
11
11
9
8
8
12
10
9
8
12
11
14
13
13
  • 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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