Cactus Surf Forecast

/ SA – Nullarbor (9 breaks) / South Australia (91 breaks) /

Australia (828 breaks)

Surf Forecasts:

Cactus surfForecast / SA – Nullarbor / Australia

12 Day Weather and Surf, issued 8 am Wednesday 27 Aug 2025 ACST

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 15.4° C
(Which is 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 (Aug 30) at 9PM. The primary swell is predicted to be 1.8m and 12s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Cactus in the next 12 days are 3.0m 13s and forecast to arrive on Friday (Aug 29) at 6PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Wednesday (Sep 03) at 9AM.

Wave Type	Time (ACST) & Date	Wave Height & Period
Next good surf (1 star+)	9PM (Sat 30th Aug)	6ft (1.8m) 12s
Best Surf	9PM (Mon 1st Sep)	5ft (1.6m) 16s
Most Powerful	6PM (Fri 29th Aug)	10ft (3.0m) 13s

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

Updates in hr min s Forecast update imminent

12 Days Hourly

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	Short Range Forecast Light rain (total 4mm), mostly falling on Wed night. Very mild (max 14°C on Wed morning, min 11°C on Fri afternoon). Winds increasing (moderate winds from the W on Wed night, near gales from the SW by Fri morning).									Days 3-6 Weather Summary Mostly dry. Very mild (max 13°C on Sat morning, min 10°C on Sat night). Wind will be generally light.
	Wednesday 27			Thursday 28			Friday 29			Saturday 30			Sunday 31			Monday 01			Tuesday 02
	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night
Rating (10 max)	0	0	0	0	0	0	0	0	0	2	2	3	2	0	2	3	1	4	3	2	3
Swell Height Map See all maps
Wave Height (m) & direction (?)	WSW	SW	SW	SW	WSW	WSW	SW	SW	SW	SSW	SW	SSW	SW	SW	SSW	SW	SW	SW	SW	SW	SW
Period(s) (?)	11	13	12	11	11	10	11	12	13	13	12	12	11	11	10	19	18	16	16	15	14
Wave Graph (?)
Energy (?)	1597	1697	1200	1065	1214	1145	2213	2655	2669	1883	1148	769	499	436	357	769	1310	1245	967	753	520
Wind (km/h)	SW	SW	W	W	W	W	SW	SW	SSW	SSE	SSE	ESE	NNE	SSW	SE	N	SSW	E	NNE	SSE	ENE
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	on	on	cross- on	cross- on	on	cross- on	on	cross- on	cross- on	cross	cross	cross- off	cross- off	cross- on	cross- off	cross- off	cross- on	off	cross- off	cross	off
High Tide / height (m)		1:39PM 1.20	1:59AM 1.20		1:52PM 1.13	2:18AM 1.18		2:03PM 1.05	2:38AM 1.13		2:10PM 0.96	2:58AM 1.04		2:05PM 0.86	3:16AM 0.93		1:26PM 0.78	3:23AM 0.78	11:53AM 0.83		1:55AM 0.65
Low Tide / height (m)			7:48PM -0.02	7:58AM 0.12		8:01PM -0.01	8:18AM 0.20		8:13PM 0.02	8:35AM 0.30		8:23PM 0.09	8:49AM 0.43		8:27PM 0.16	8:47AM 0.58		8:10PM 0.24	7:15AM 0.70		7:17PM 0.27

	Wednesday 27			Thursday 28			Friday 29			Saturday 30			Sunday 31			Monday 01			Tuesday 02
Sunrise	7:01	-	-	7:01	-	-	6:58	-	-	6:58	-	-	6:56	-	-	6:56	-	-	6:54	-	-
Sunset	-	6:16	-	-	6:17	-	-	6:19	-	-	6:19	-	-	6:20	-	-	6:20	-	-	6:21	-

Rain (mm)	-	-	1	1	-	2	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Temp. °C	14	14	14	14	14	14	12	12	12	13	13	12	13	12	13	13	13	13	16	18	17
Feels °C (?)	4	6	8	6	6	8	0	1	1	7	8	8	10	8	10	10	9	11	14	14	11

Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)

Recent Eyeball Surf Reports for SA - Nullarbor

Wind Update Wind reports 53 km away suggest it is still onshore at Cactus (strong winds from the SW at ASCATC133E32S). A 2.4m swell from the WSW
2 hours 48 minutes ago Cactus

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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 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.