Little Austi and Main Beach Surf Break

Lat Long: 34.30° S 150.94° E

Little Austi and Main Beach Surf Forecast and Surf Report

Issued: 3 am 18 Aug 2026 (local time)

Forecast update in  hr  min

Today's Little Austi and Main Beach sea temperature is
17.8° C
0.4° 

Little Austi and Main Beach surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Little Austi and Main Beach surf forecast from 18 Aug 2026:

  • Best quality surf: Wednesday 19 Aug, 10AM (local time) - 2ft (0.6m), 10s period, ESE swell with cross-offshore winds.
  • Most powerful swell: Wednesday 19 Aug, 4PM (local time) - 4ft (1.2m), 10s period, E swell with 262 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 18 Aug, 10PM (local time) - 3ft (0.9m), 7s period with ESE swell.

Best Forecast Surf Conditions for Little Austi and Main Beach this week:

The surf forecast for Little Austi and Main Beach over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Aug 18) at 10PM. The primary swell is predicted to be 0.5m and 12s period with a secondary swell of 0.9m and 7s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Little Austi and Main Beach in the next 16 days are 1.2m 10s and forecast to arrive on Wednesday (Aug 19) 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 1.3m 5s period and expected on Thursday (Aug 20) at 1AM.

Wave TypeTime (AEST) & Date Wave Height & Period
Next good surf (1 star+)10PM (Tue 18th Aug)3ft (0.9m) 7s
Best Surf10AM (Wed 19th Aug)2ft (0.6m) 10s
Most Powerful 4PM (Wed 19th Aug)4ft (1.2m) 10s

Table - best surf conditions forecast for Little Austi and Main Beach over the next 16 days.


The Lowdown

Alright folks, Rusty here. Let’s be straight with you: the next couple of weeks are looking pretty average for Little Austi and Main Beach. We’ve got a lot of small, weak surf ahead, so don’t get too excited just yet. It’s not a complete write-off, but you’ll need to be patient and pick your moments.

The water temp is sitting at about 64°, which is pretty much what you'd expect for this time of year, so no surprises there.

We start off slow. Tuesday the 18th is flat and messy, with a weak 3ft easterly windswell and a light cross breeze. Nothing doing. Wednesday the 19th is a bit better first thing. The sun’s out, and we’ve got a clean 2ft east-southeast swell in the water. The energy is moderate (226), and with that light offshore touch, it’ll be worth a quick paddle. But it's small, and the afternoon gets chopped up by a moderate east-northeast breeze. The rest of that week and into the weekend is really just tiny leftovers under 3ft. There’s occasional clean windows, like Friday morning and Saturday morning, but the swell is so weak it’s barely breaking.

We go through a real flat spell from the 22nd to the 28th. There are days with just ankle-biters and almost no energy at all. You'd be better off doing anything else. The morning of the 23rd is glassy, and the 25th is glassy too, but there’s simply no power in the water.

Now, here’s where things get interesting. About a week out, on Saturday the 29th, we get a pulse of long-period southeast swell. It’s 7ft at 9 seconds, and the energy jumps to a solid 735. That’s the standout of the whole run. The wind is light offshore in the morning, so it should be clean. This is a proper wave. It could be a bit much for beginners at 7ft, but for the intermediates and up, this is your window. You want to be out there.

Hold on though, because it doesn't last. That Sunday the 30th, the wind swings strong from the south-southwest at 25 mph, and the ocean turns into a mess. The swell builds to 8ft, but with that cross-shore wind, it’s going to be a washing machine. By Sunday afternoon and into Monday the 31st, it’s big, up to 16ft at times, and completely blown out with a strong cross-onshore wind. This is not paddle surfing. This is kite-surfing mayhem, and even then, it’s sketchy. The energy readings are off the charts (3847), but it’s all for naught with that wind. This is for experts only, and even they might be scratching their heads.

The start of September stays lumpy and onshore, with more fresh breezes and messy waves. The swell drops slightly, but the quality is just poor. All in all, if you’re looking for the best surf of the fortnight, circle Saturday the 29th. It’s still over a week away, so keep an eye on the long-range forecasts, but it’s the one that stands out as genuinely good. Otherwise, keep your board in the car and your expectations low.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 22°C on Thu morning, min 12°C on Tue night). Wind will be generally light.

Days 4-6 Weather Summary

Light rain (total 4mm), mostly falling on Fri afternoon. Warm (max 20°C on Fri morning, min 11°C on Sat night). Wind will be generally light.

Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
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
1
2
0
1
1
1
1
1
0
0
0
0
0
0
0
0
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
E
7
0.4
ESE
13
0.6
ESE
11
0.6
ESE
10
1.2
E
10
0.7
SE
9
0.6
ESE
8
0.7
NE
5
0.9
ENE
6
0.8
ENE
6
0.7
NE
6
0.5
NE
6
0.4
NE
6
0.4
NE
6
0.8
SSE
5
0.3
NE
6
0.9
SSE
7
0.4
NE
8
0.4
NE
8
0.6
ENE
9
0.6
ENE
9
Wave Graph
Metric surfscale
Energy kJ
89
60
100
82
262
81
44
28
52
51
39
16
9
9
24
6
72
17
15
50
53
Wind (km/h)
10
NE
10
ENE
5
WNW
10
NNE
20
NE
10
NW
10
NNW
10
NNE
10
NW
5
WSW
10
NNW
10
NW
10
WSW
10
SE
10
W
5
NNE
20
NE
10
NW
5
NW
10
SE
10
SW
Wind State
cross
cross-on
off
cross-off
cross
off
cross-off
cross-off
off
cross-off
cross-off
off
cross-off
on
cross-off
glassy
cross
off
glassy
on
cross
High Tide
12:07PM1.32m
00:18AM1.05m
12:56PM1.29m
1:14AM0.93m
1:51PM1.26m
2:26AM0.86m
2:55PM1.25m
3:47AM0.84m
4:00PM1.27m
4:57AM0.87m
4:57PM1.32m
5:49AM0.92m
5:45PM1.38m
Low Tide
6:30PM0.42m
6:15AM0.39m
7:35PM0.47m
6:58AM0.47m
8:49PM0.50m
7:53AM0.53m
10:06PM0.48m
9:01AM0.55m
11:09PM0.43m
10:09AM0.54m
11:58PM0.37m
11:07AM0.49m
00:37AM0.30m
cloud
part cloud
part cloud
clear
clear
part cloud
part cloud
cloud
part cloud
part cloud
light rain
light rain
clear
clear
clear
part cloud
clear
part cloud
clear
cloud
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:33
6:31
6:31
6:30
6:28
6:26
6:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:27
5:28
5:28
5:29
5:30
5:30
5:30
 mm
3
1
5
Temp °C
17
16
14
18
17
13
22
20
17
20
17
14
18
16
14
17
17
13
21
18
14
Feels °C
14
14
13
15
13
12
19
18
15
19
16
13
15
14
14
15
14
12
20
17
12
  • 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 Little Austi and Main Beach Surf forecast

The above surf forecast table for Little Austi and Main Beach provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Little Austi and Main Beach can be found by selecting the local surf guide option on the grey menu. Our Little Austi and Main Beach 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 (Little Austi and Main Beach) 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 Little Austi and Main Beach 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 Illawarra? If you are looking for accommodation near Little Austi and Main Beach, camping, hotels and holiday cottages in Illawarra, consider staying in Wollongong which is 15 km (9 miles) away. Other places in and around Illawarra where you can find information about places to rent, and car hire include Port Kembla which is 22 km (14 miles) away, Engadine, Caringbah and Cronulla.

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