Surf Forecasts:
Little Austi and Main Beach surf forecast from 5 Sep 2026:
- Best quality surf: Tuesday 8 Sep, 10PM (local time) - 3ft (0.9m), 9s period, SE swell with offshore winds.
- Most powerful swell: Tuesday 8 Sep, 7AM (local time) - 7ft (2.2m), 9s period, SSE swell with 692 kJ wave energy.
- Next surfable swell (1★+): Tuesday 8 Sep, 10PM (local time) - 3ft (0.9m), 9s 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 (Sep 08) at 10PM. The primary swell is predicted to be 0.9m and 9s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Little Austi and Main Beach in the next 16 days are 2.2m 9s and forecast to arrive on Tuesday (Sep 08) at 7AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.0m 10s period and expected on Sunday (Sep 06) at 7PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Tue 8th Sep) | 3ft (0.9m) 9s |
| Best Surf | 10PM (Tue 8th Sep) | 3ft (0.9m) 9s |
| Most Powerful | 7AM (Tue 8th Sep) | 7ft (2.2m) 9s |
Table - best surf conditions forecast for Little Austi and Main Beach over the next 16 days.
The Lowdown
G’day, Rusty here again, same story but in feet, miles, and Fahrenheit for you.
For our only break, Little Austi and Main Beach, it’s a long quiet spell. The first real chance of a wave isn’t until Saturday September 7th, with a 3ft swell from the SSE, a 9-second period, and moderate combined wave energy of 155, but the wind is onshore from the ESE. Not great.
Water temp is around 64°, with an anomaly of 0.5° above normal, so pretty average for this time of year.
The first week is mostly a bust. Monday the 9th sees 7ft from the SSE, with a combined energy of 558 (moderate to strong), but a moderate cross-onshore wind from the south makes it lumpy. Not one for the longboard.
The standout is Monday the 14th of September, morning session. Clean 3ft from the SSE, 11-second groundswell, with a light offshore wind from the NNW. Combined energy at 220 — crisp, clean waves. Expect crowds possible at this spot when it’s good. That’s your best window, no doubt.
Later that afternoon the swell holds at 3ft from the same direction but goes cross-shore from the NE, so stick to the morning.
After that, it fades again. Tuesday the 16th sees 1ft from the SSE with a cross-onshore breeze — forget it. Thursday the 18th has a brief 4ft from the NE, but the period is only 4 seconds (windswell) and energy is a weak 55. Saturday the 20th offers 3ft from the SSE with an offshore wind — surfable but ordinary.
So, plain and simple: Monday the 14th of September morning is your one true chance. The rest of the 16-day window is mostly flat or poor. If the swell came from the preferred ENE direction, it’d be a whole different story. Until then, keep the board waxed and wait.
Rusty.
Short Range ForecastSome drizzle, heaviest during Mon night. Warm (max 28°C on Sat afternoon, min 12°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 2mm), mostly falling on Wed morning. Warm (max 20°C on Fri morning, min 9°C on Wed night). Winds decreasing (fresh winds from the S on Wed morning, calm by Thu afternoon). | |||||||||||||||||||
Sat 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | ||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | NE 5 | NE 6 | NE 6 | NE 7 | E 10 | NE 8 | SSE 9 | SSE 8 | SSE 8 | SSE 10 | SE 8 | SSE 9 | E 17 | SE 12 | ESE 10 | ESE 10 | ENE 15 | E 15 | ENE 14 | ENE 13 |
Wave Graph  | ||||||||||||||||||||
 kJ | 32 | 28 | 21 | 15 | 8 | 9 | 145 | 671 | 547 | 631 | 67 | 232 | 6 | 6 | 20 | 18 | 21 | 17 | 19 | 18 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross | cross-on | cross-off | glassy | on | cross-on | cross-on | cross-on | off | cross-on | cross-on | cross-off | cross-on | on | cross-off | off | cross-on | glassy |
High Tide | 3:46AM0.95m | 3:54PM1.47m | 5:00AM1.00m | 4:59PM1.53m | 5:58AM1.09m | 5:56PM1.59m | 6:46AM1.18m | 6:46PM1.62m | 7:28AM1.27m | 7:32PM1.61m | 8:08AM1.35m | 8:15PM1.56m | ||||||||
Low Tide | 9:47PM0.30m | 9:09AM0.46m | 10:57PM0.22m | 10:24AM0.42m | 11:54PM0.14m | 11:28AM0.35m | 00:42AM0.07m | 12:24PM0.27m | 1:23AM0.03m | 1:15PM0.21m | 2:01AM0.03m | 2:02PM0.17m | 2:37AM0.06m | |||||||
 |  |  | | | | |  | | | |  |  | | | | | | | | |
 | — | — | 6:09 | — | — | 6:07 | — | — | 6:05 | — | — | 6:05 | — | — | 6:03 | — | — | 6:01 | — | — |
 | 5:39 | — | — | 5:39 | — | — | 5:40 | — | — | 5:42 | — | — | 5:42 | — | — | 5:43 | — | — | 5:44 | — |
mm | — | — | — | — | — | — | — | 1 | — | — | — | 2 | — | — | — | — | — | — | — | — |
Temp °C | 28 | 20 | 20 | 18 | 14 | 19 | 16 | 14 | 16 | 16 | 12 | 13 | 14 | 13 | 15 | 14 | 11 | 20 | 17 | 13 |
Feels °C | 25 | 17 | 16 | 14 | 11 | 16 | 13 | 10 | 13 | 14 | 10 | 7 | 9 | 9 | 11 | 10 | 8 | 16 | 15 | 12 |
Swell 1 Height (m) Direction Period (s) | NE 5 | NE 6 | NE 6 | NE 7 | S 9 | S 9 | S 9 | E 11 | SSE 8 | SSE 10 | S 9 | SSE 9 | NE 9 | S 17 | S 20 | S 10 | S 11 | S 11 | S 10 | S 10 |
| kJ | 32 | 28 | 21 | 15 | 821 | 364 | 177 | 9 | 547 | 631 | 282 | 232 | 3 | 51 | 131 | 1048 | 1334 | 883 | 709 | 535 |
Swell 2 Height (m) Direction Period (s) | S 10 | S 9 | E 11 | E 11 | NE 6 | NE 8 | NE 8 | NE 8 | E 11 | SE 9 | SE 8 | E 9 | S 16 | SE 12 | ESE 10 | S 17 | ESE 9 | E 15 | ENE 14 | ENE 13 |
| kJ | 65 | 43 | 9 | 9 | 2 | 9 | 2 | 3 | 9 | 3 | 67 | 7 | 5 | 6 | 20 | 386 | 8 | 17 | 19 | 18 |
Swell 3 Height (m) Direction Period (s) | E 9 | E 11 | E 14 | — | E 10 | E 10 | E 10 | — | NE 8 | ENE 10 | ENE 10 | N 8 | E 17 | NE 9 | E 16 | ESE 10 | ENE 15 | S 22 | E 10 | S 19 |
| kJ | 7 | 10 | 4 | — | 8 | 8 | 8 | — | 2 | 9 | 9 | 1 | 6 | 3 | 5 | 18 | 21 | 9 | 2 | 7 |
Wind waves Height (m) Direction Period (s) | NW 3 | WSW 3 | SSW 7 | S 8 | S 10 | — | SSE 9 | SSE 8 | — | — | N 3 | SW 2 | S 8 | S 9 | S 10 | S 10 | — | — | — | — |
| kJ | 8 | 3 | 102 | 190 | 1113 | — | 145 | 671 | — | — | 1 | 1 | 717 | 1055 | 1360 | 1353 | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 1 | 5 | 5 | 128 | 1 | 1 | 50 | 50 | 41 | 92 | 0 | 76 | 345 | 2 | 7 | 50 | 1 | 1 | 92 | 1 |
Best forecast wave conditions in Illawarra | ||||||||||||||||||||
Best forecast wave conditions in Australia | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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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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