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: 9 am 15 Sep 2026 (local time)

Forecast update in  hr  min

Today's Little Austi and Main Beach sea temperature is
18.1°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 15 Sep 2026:

  • Best quality surf: Thursday 17 Sep, 7PM (local time) - 6ft (1.8m), 9s period, SSE swell with glassy winds.
  • Most powerful swell: Thursday 17 Sep, 7PM (local time) - 6ft (1.8m), 9s period, SSE swell with 528 kJ wave energy.
  • Next surfable swell (1★+): Thursday 17 Sep, 7PM (local time) - 6ft (1.8m), 9s period with SSE 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 Thursday (Sep 17) at 7PM. The primary swell is predicted to be 1.8m and 9s period with a secondary swell of 0.1m and 13s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Little Austi and Main Beach in the next 16 days are 1.8m 9s and forecast to arrive on Thursday (Sep 17) at 7PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.5m 9s period and expected on Wednesday (Sep 16) at 4AM.

Wave TypeTime (AEST) & Date Wave Height & Period
Next good surf (1 star+) 7PM (Thu 17th Sep)6ft (1.8m) 9s
Best Surf 7PM (Thu 17th Sep)6ft (1.8m) 9s
Most Powerful 7PM (Thu 17th Sep)6ft (1.8m) 9s

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


The Lowdown

G’day, this is Rusty. Gotta be straight with you—this 16-day window is a lean stretch for Little Austi and Main Beach. It’s a beach and reef setup, exposed to ENE swells, and it’s fairly consistent when conditions line up, but for the next week and a half, it’s a ghost town for decent waves.

Right off the bat, the water temp is sitting at 65°, which is about average for this time of year. Not too shabby.

Now, the first real surf on offer is not until Tuesday the 23rd of September. That’s a solid week away. Before that, we’re looking at a long dry spell from Tuesday the 15th right through to the morning of Tuesday the 23rd—nothing worth paddling out for. Glassy mornings, clean afternoons, sure, but the swell is either non-existent or tiny, weak, and messy. You’ll see the combined energy numbers sitting well below 100 (like 91, 74, even 0), which tells you the ocean is flat as a tack. Winds are mostly cross-onshore and choppy, so even the little bumps are blown out. No point getting your hopes up.

The standout window, and I mean the only real chance here, kicks off on Tuesday the 23rd of September. Tuesday morning brings a pulse of 5 ft SSE swell with a 10-second period. The combined energy hits 509 (moderate energy), and the wind is light and offshore from the NNE. That’s going to produce clean, lined-up waves. This is the best of the whole forecast. Keep in mind though, with that size, beginners might find it a bit punchy, and the swell period is moderate, so it’s not a super-long period groundswell. The break works best on ENE swell, and this is from the SSE, so it won’t quite be firing at full potential, but still—clean, offshore, and some push in the water? I’d be in the water early.

The only other moment worth a mention is Saturday the 26th of September morning. Swell from NE at 6 ft, period 8 seconds, combined energy a chunky 651 (moderate to strong energy). Again, light NNE cross-offshore breeze, so clean surf. For experienced surfers, this could be a fun size, but it’s a solid 5 ft plus, so it’s more of a step-up wave. The swell direction is NE, which is close to the optimum ENE, so it should wrap in okay.

After that? The wind turns onshore and the quality drops back to lumpy, choppy, and disappointing. Crowds can be an issue at this spot when it’s good, and it’s worth mentioning that on the best days, you can expect company for sure.

So, to sum it up: don’t bother until the 23rd. Tuesday the 23rd morning is your best call. Saturday the 26th morning is another look, especially if you’re after a bit more size. The rest is a write-off.

Rusty.

Short Range Forecast

Some drizzle, heaviest during Tue afternoon. Warm (max 21°C on Tue morning, min 8°C on Wed night). Winds decreasing (fresh winds from the S on Tue afternoon, calm by Thu afternoon).

Days 4-6 Weather Summary

Mostly dry. Warm (max 30°C on Sun morning, min 16°C on Fri night). Wind will be generally light.

Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
Sunday
20
Monday
21
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
0
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)
0.9
NE
7
0.8
NE
7
0.2
ENE
13
0.2
ENE
14
0.1
E
15
0.1
NE
13
0.2
ENE
13
0.2
ENE
13
0.1
NE
13
0.2
ENE
12
0.2
ENE
12
0.4
NE
4
0.3
NE
5
0.8
S
9
0.1
E
12
0.1
E
11
0.4
NE
3
0.4
NE
4
0.3
NE
4
0.1
E
11
2.5
S
8
Wave Graph
Metric surfscale
Energy kJ
79
57
18
20
6
7
17
17
7
15
15
3
3
0
3
2
3
3
3
3
0
Wind (km/h)
15
S
20
SSE
25
S
30
SSW
30
S
25
SSW
10
S
10
E
10
WNW
5
NNE
10
NE
15
WNW
10
SSW
10
NNE
10
W
5
NNW
0
WNW
10
WNW
15
SSE
20
SSE
25
S
Wind State
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross-on
cross-on
off
glassy
cross
cross-off
cross
cross-off
cross-off
cross-off
glassy
cross-off
on
on
cross-on
High Tide
10:37AM1.41m
11:00PM1.09m
11:17AM1.36m
11:46PM0.98m
12:02PM1.30m
00:43AM0.90m
12:58PM1.25m
1:57AM0.85m
2:06PM1.22m
3:21AM0.85m
3:17PM1.23m
4:28AM0.90m
4:18PM1.27m
Low Tide
5:05PM0.29m
4:47AM0.37m
5:56PM0.37m
5:23AM0.46m
6:56PM0.43m
6:08AM0.53m
8:07PM0.47m
7:08AM0.59m
9:23PM0.47m
8:26AM0.60m
10:27PM0.42m
9:42AM0.57m
11:15PM0.36m
clear
rain showers
part cloud
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
cloud
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:56
5:54
5:54
5:52
5:50
5:50
5:48
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:46
5:46
5:47
5:49
5:49
5:50
5:51
 mm
1
2
Temp °C
21
18
12
14
14
13
15
14
10
22
20
17
26
26
18
30
29
22
19
16
14
Feels °C
19
16
7
6
6
6
11
11
8
18
18
12
22
23
15
27
27
19
17
13
10
  • 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
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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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