Little Austi and Main Beach surfForecast / NSW – Illawarra / Australia

information circle12 Day Weather and Surf, issued 4 am Friday 12 Dec 2025 AEDT
Forecast update in hr  min  s Forecast update imminent
Little Austi and Main Beach surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Little Austi and Main Beach sea temperature is
21.6° C
(Which is slightly warmer than usual)


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

The surf forecast for Little Austi and Main Beach over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Dec 12) at 8PM. The primary swell is predicted to be 1.1m and 12s period with a secondary swell of 0.9m and 6s. 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 12 days are 1.5m 11s and forecast to arrive on Saturday (Dec 13) at 2PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.2m 7s period and expected on Monday (Dec 15) at 2AM.

Wave TypeTime (AEDT) & Date Wave Height & Period
Next good surf (1 star+) 8PM (Fri 12th Dec)3.5ft (1.1m) 12s
Best Surf 8PM (Fri 12th Dec)3.5ft (1.1m) 12s
Most Powerful 2PM (Sat 13th Dec)5ft (1.5m) 11s

Table - best surf conditions forecast for Little Austi and Main Beach over the next 12 days.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Heavy rain (total 23mm), heaviest during Sat night. Warm (max 32°C on Sun afternoon, min 17°C on Fri night). Winds increasing (calm on Sat night, strong winds from the SSW by Sun night).

Days 3-6 Weather Summary Mostly dry. Warm (max 20°C on Wed morning, min 14°C on Wed night). Wind will be generally light.

Friday
12
Saturday
13
Sunday
14
Monday
15
Tuesday
16
Wednesday
17
Thursday
18
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
2
2
0
0
1
2
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
0.9
E
1.1
E
1.1
E
1.3
E
1.5
ENE
1.3
ENE
1.1
ENE
1.8
ENE
1.3
ENE
0.9
NE
1.7
SSE
0.5
E
0.4
ENE
0.3
ENE
0.3
SSE
0.4
E
0.4
E
0.4
E
0.4
ENE
0.8
ENE
0.6
ENE
Period(s) (?)12121111767788877716888844
Wave
Graph
(?)Metric surfscale
Energy kJ (?)239333300396204143121290204843832415951212020211710
Wind
(km/h)
10
ESE
10
ENE
5
NNW
15
NNE
20
NE
5
S
5
NW
10
NNW
25
S
15
SSE
20
SSE
20
SSE
15
SSE
20
SSE
10
SE
10
SE
15
E
5
WNW
15
NE
20
NE
5
NW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
oncross-
on
offcross-
off
crosscross-
on
offoffcross-
on
cross-
on
ononcross-
on
onononcross-
on
cross-
off
crosscrossoff
High Tide
/ height (m)
3:05PM
1.19
4:21AM
1.18
4:06PM
1.09
5:09AM
1.25
5:07PM
1.02
5:52AM
1.32
6:04PM
0.98
6:32AM
1.38
6:57PM
0.97
7:09AM
1.44
7:44PM
0.97
7:47AM
1.48
8:27PM
0.99
Low Tide
/ height (m)
9:08AM
0.55
9:43PM
0.29
10:22AM
0.54
10:27PM
0.33
11:30AM
0.50
11:09PM
0.37
12:27PM
0.44
11:49PM
0.39
1:15PM
0.37
12:29AM
0.40
1:58PM
0.30
1:09AM
0.40
2:38PM
0.25
1:49AM
0.40
Friday
12
Saturday
13
Sunday
14
Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Sunrise5:37--5:37--5:37--5:37--5:37--5:37--5:39--
Sunset-8:00--8:01--8:02--8:02--8:04--8:05--8:05-
thunderstorm
thunderstorm
part cloud
clear
part cloud
thunderstorm
clear
clear
part cloud
cloud
cloud
cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
Rain (mm)
53---15---------------
Temp. °C202120232521283220171717181817202017212318
Feels °C (?)202220222223283214161314151415181716192016
  • 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 12 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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