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 13 Aug 2026 (local time)

Forecast update in  hr  min

Today's Little Austi and Main Beach sea temperature is
17.4° C
0.1° 

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 12 Aug 2026:

  • Best quality surf: Tuesday 18 Aug, 7AM (local time) - 2.5ft (0.8m), 7s period, SE swell with glassy winds.
  • Most powerful swell: Sunday 16 Aug, 10AM (local time) - 5ft (1.5m), 6s period, SSE swell with 193 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 18 Aug, 7AM (local time) - 2.5ft (0.8m), 7s period with SE 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 7AM. The primary swell is predicted to be 0.8m and 7s period with a secondary swell of 0.8m and 6s. 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 1.5m 6s and forecast to arrive on Sunday (Aug 16) at 10AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.8m 8s period and expected on Saturday (Aug 15) at 1PM.

Wave TypeTime (AEST) & Date Wave Height & Period
Next good surf (1 star+) 7AM (Tue 18th Aug)2.5ft (0.8m) 7s
Best Surf 7AM (Tue 18th Aug)2.5ft (0.8m) 7s
Most Powerful10AM (Sun 16th Aug)5ft (1.5m) 6s

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


The Lowdown

Alright, Rusty here, let’s talk about what’s happening at our local break, Little Austi and Main Beach. It’s a beach and reef setup, fairly consistent, exposed to ENE swell, and it likes wind from the NW to keep things clean. The water’s sitting at about 63°F, which is pretty much average for this time of year, so no surprises there.

Honestly, the first week is a bit of a struggle. From Thursday the 13th right through to the end of the following week, the surf is mostly small, weak, and messy. We’ve got a lot of poor surf conditions with combined swell energy barely cracking triple digits most days – think readings like 35, 55, 19 – so the ocean’s just not got any punch. Winds are often onshore or cross-onshore, adding chop and ripples. There’s a glassy moment on Friday morning the 14th but the swell is only 1 ft and the energy is a paltry 31, so it’s not worth paddling out for.

Sunday the 16th sees a jump in height to 5 ft from the SSE, and the energy hits 212 (moderate), but the period is a short 6 seconds and the wind is onshore, so it’s lumpy and junky. That’s more of a kite-surfing setup than anything you’d want to paddle into. The rest of that week stays in the poor-to-ordinary range, with small swell and cross-shore winds.

Now, here’s where it gets interesting. The real standout comes on Saturday the 22nd and Sunday the 23rd – that’s over a week away, so keep an eye on the forecasts. Saturday morning sees clean conditions with a moderate offshore NW breeze, 4 ft ENE swell at a period of 9 seconds, and energy of 203 (moderate). But it’s Saturday afternoon that’s the pick: 5 ft from the ENE, period 9 seconds, a light WNW offshore breeze making it clean, and the combined energy jumps to 563 – that’s strong energy, real push. That’s going to produce some proper, rippable waves at Little Austi and Main Beach. Sunday morning holds similar quality with 4 ft and clean offshore wind, though the energy drops a bit to 273. Still very good.

The swell direction matches the optimum (ENE), the winds are offshore, the period is decent (9 seconds – solid short-period groundswell, not too straight-breaking for this beach-and-reef setup), and the energy is strong. This is the window to clear your schedule for. Crowds can be an issue here sometimes, so expect company if the forecast holds.

After that, Monday the 24th gets blown out by strong SSW winds and the surf fades quickly into tiny, choppy junk through to the end of the outlook.

So, bottom line: the first week and a half is pretty flat and messy – a proper dry spell. Don’t bother until the 22nd. That Saturday afternoon through Sunday morning is your best shot by far. Keep your fingers crossed.

Rusty.

Short Range Forecast

Moderate rain (total 10mm), heaviest on Fri night. Very mild (max 17°C on Thu morning, min 8°C on Thu night). Wind will be generally light.

Days 4-6 Weather Summary

Moderate rain (total 15mm), heaviest on Tue morning. Very mild (max 16°C on Sun morning, min 11°C on Tue night). Wind will be generally light.

Thursday
13
Friday
14
Saturday
15
Sunday
16
Monday
17
Tuesday
18
Wednesday
19
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
1
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.5
ENE
10
0.4
ENE
9
0.4
ENE
9
0.4
ENE
10
0.4
ENE
10
0.3
ENE
9
0.3
ENE
9
0.3
ENE
9
1.2
SSE
7
1.5
SSE
6
1.2
SE
6
1.3
ESE
6
0.9
E
6
1.2
ESE
7
1.3
ESE
6
0.7
SE
6
0.7
SE
7
0.9
ESE
6
1.1
ESE
6
1
ESE
6
0.9
ESE
6
Wave Graph
Metric surfscale
Energy kJ
55
35
29
31
31
17
17
17
139
193
112
140
63
125
117
40
44
62
93
82
68
Wind (km/h)
10
SW
10
ESE
15
W
0
SW
10
ESE
5
SW
20
S
20
S
15
SE
15
SE
15
SE
15
ESE
10
ESE
15
E
10
E
5
ESE
10
SE
10
SW
5
SSE
10
ENE
5
NW
Wind State
cross
on
cross-off
glassy
cross-on
cross
cross-on
cross-on
on
on
on
cross-on
cross-on
cross-on
cross-on
on
on
cross
glassy
cross
off
High Tide
8:37PM1.72m
9:19AM1.29m
9:21PM1.63m
10:01AM1.32m
10:04PM1.51m
10:42AM1.34m
10:47PM1.35m
11:24AM1.34m
11:31PM1.20m
12:07PM1.32m
00:18AM1.05m
12:56PM1.29m
1:14AM0.93m
Low Tide
2:14PM0.20m
3:15AM-0.02m
3:03PM0.20m
3:53AM0.03m
3:52PM0.23m
4:29AM0.10m
4:42PM0.28m
5:04AM0.20m
5:34PM0.35m
5:39AM0.29m
6:30PM0.42m
6:15AM0.39m
7:35PM0.47m
clear
clear
clear
clear
clear
rain showers
rain showers
part cloud
rain showers
part cloud
rain showers
rain showers
rain showers
rain showers
rain showers
light rain
rain showers
clear
part cloud
rain showers
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:39
6:37
6:35
6:35
6:33
6:33
6:31
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:22
5:23
5:24
5:25
5:25
5:27
5:28
 mm
4
1
5
1
3
2
2
2
4
1
1
Temp °C
17
16
11
16
15
13
14
15
14
16
14
14
16
15
14
14
15
13
15
15
14
Feels °C
13
13
7
13
13
12
9
11
11
12
11
11
13
13
12
12
13
12
14
14
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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