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 15 Jul 2026 (local time)

Forecast update in  hr  min

Today's Little Austi and Main Beach sea temperature is
17.9° 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 Jul 2026:

  • Best quality surf: Sunday 19 Jul, 10PM (local time) - 6ft (1.8m), 10s period, ENE swell with glassy winds.
  • Most powerful swell: Sunday 19 Jul, 10AM (local time) - 6.5ft (2.0m), 11s period, ENE swell with 908 kJ wave energy.
  • Next surfable swell (1★+): Sunday 19 Jul, 10PM (local time) - 6ft (1.8m), 10s period with ENE 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 Sunday (Jul 19) at 10PM. The primary swell is predicted to be 1.8m and 10s period. 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 2.0m 11s and forecast to arrive on Sunday (Jul 19) 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 2.5m 10s period and expected on Wednesday (Jul 15) at 1PM.

Wave TypeTime (AEST) & Date Wave Height & Period
Next good surf (1 star+)10PM (Sun 19th Jul)6ft (1.8m) 10s
Best Surf10PM (Sun 19th Jul)6ft (1.8m) 10s
Most Powerful10AM (Sun 19th Jul)6.5ft (2.0m) 11s

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


The Lowdown

Alright, let’s break it down.

First up, we’ve got a long, quiet stretch here. Little Austi and Main Beach is looking pretty flat and messy for the first several days. Wednesday the 15th through Saturday the 18th are basically a write-off – tiny surf, if any, and a persistent cross-onshore breeze keeping things choppy and uninviting. The combined energy readings are very low, barely registering.

Sunday the 19th shows a bit more life with a 7ft ENE swell rolling in, but it’s getting a "marginal" tag, likely due to tide or other factors. The wind is light and onshore, so it’s not going to be clean. Still, that’s the first real pulse of energy.

Now, the standout window kicks off on Monday morning, July 20th. That’s where we start to see the goods. We’ve got a 6ft ENE swell, with a 10-second period, and a light northerly breeze that’s cross-offshore. The combined energy is a solid 574 (moderate). Conditions are described as "clean" and the forecast expects very good surf. This is your best early bet.

The real gem, though, is Tuesday morning, July 21st. The swell holds at 5ft from the ENE, still with a 10-second period, but the wind swings to the northwest at 15 km/h, giving us a clean offshore flow. The combined energy is 518. This is the pick of the whole window for Little Austi and Main Beach – clean, offshore, and a decent size for intermediate surfers. It’s a fairly consistent spot, so you can expect some fun waves.

After that, the rest of the week and into the next sees a slow, steady decline. Wednesday afternoon the 22nd goes glassy with a 5ft ENE swell, which is a nice little session, but the size drops. By the weekend of the 26th, we’re back to smaller 3ft waves, though the occasional glassy morning (like Saturday the 25th and Sunday the 26th) will offer clean, small waves for a longboard or a foiler.

For the second week, from the 23rd onward, the swell stays in the 3ft to 6ft range, but the winds are more variable. The 23rd and 24th have clean mornings with a 5-6ft E swell, but the period is a bit longer (11 seconds), which can make it a bit straighter at the beach. The standout in that later period is Tuesday morning, July 28th – a 3ft E swell with a clean offshore wind from the WNW. It’s not big, but it’ll be clean and fun.

Water temp is sitting around 64°F, which is about average for this time of year – nothing unusual there.

Overall, if you’re looking for the best session, point your board at Tuesday morning, July 21st. Monday the 20th is a close second. The rest is a mixed bag of small, clean days and choppy afternoons.

Rusty.

Short Range Forecast

Light rain (total 2mm), mostly falling on Thu night. Very mild (max 16°C on Thu morning, min 11°C on Wed night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Very mild (max 17°C on Mon morning, min 12°C on Sun night). Wind will be generally light.

Wednesday
15
Thursday
16
Friday
17
Saturday
18
Sunday
19
Monday
20
Tuesday
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
1
2
3
3
1
3
3
0
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2.5
S
10
2.2
S
9
0.1
E
11
0.1
E
11
0.1
E
11
1.7
SSE
7
1
S
6
0.8
S
6
0.7
E
7
0.9
ENE
7
1
E
7
1.2
E
9
2
ENE
11
2
ENE
11
1.8
ENE
10
1.7
ENE
10
1.6
ENE
10
1.6
ENE
10
1.6
ENE
10
1.5
ENE
10
1.4
ENE
10
Wave Graph
Metric surfscale
Energy kJ
0
0
2
2
2
268
71
39
51
89
109
215
908
891
628
551
490
500
510
433
373
Wind (km/h)
20
SSW
20
S
15
SW
20
S
25
S
20
SSW
15
SSW
15
S
10
SSW
15
S
20
S
15
S
10
SSE
10
SE
0
WNW
5
N
10
NE
10
NW
15
NW
20
NE
10
W
Wind State
cross
cross-on
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross-on
cross-on
cross-on
on
on
glassy
cross-off
cross
off
off
cross
cross-off
High Tide
8:55PM1.80m
9:47AM1.18m
9:44PM1.74m
10:35AM1.20m
10:31PM1.62m
11:23AM1.22m
11:18PM1.47m
12:12PM1.24m
00:06AM1.30m
1:01PM1.26m
00:57AM1.14m
1:53PM1.27m
1:54AM1.01m
Low Tide
2:25PM0.23m
3:45AM-0.07m
3:17PM0.24m
4:30AM-0.03m
4:10PM0.28m
5:13AM0.04m
5:05PM0.33m
5:54AM0.13m
6:03PM0.40m
6:34AM0.22m
7:05PM0.46m
7:14AM0.31m
8:15PM0.49m
clear
clear
clear
clear
part cloud
rain showers
rain showers
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:00
7:00
6:58
6:58
6:58
6:58
6:56
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:02
5:04
5:05
5:05
5:06
5:07
5:07
 mm
1
1
Temp °C
15
14
12
16
15
14
15
15
14
16
15
14
16
16
14
17
17
13
19
18
14
Feels °C
10
9
8
11
10
10
12
12
12
13
12
11
13
14
13
14
14
12
16
15
12
  • 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 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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