Surf Forecasts:
Little Austi and Main Beach surf forecast from 12 Sep 2026:
- Best quality surf: Thursday 17 Sep, 10PM (local time) - 7ft (2.2m), 9s period, SSE swell with cross-offshore winds.
- Most powerful swell: Thursday 17 Sep, 7PM (local time) - 8ft (2.5m), 9s period, SSE swell with 972 kJ wave energy.
- Next surfable swell (1★+): Sunday 13 Sep, 7PM (local time) - 4.5ft (1.3m), 6s period with NE 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 (Sep 13) at 7PM. The primary swell is predicted to be 1.3m and 6s period with a secondary swell of 0.2m 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 2.5m 9s and forecast to arrive on Thursday (Sep 17) at 7PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 4.0m 10s period and expected on Wednesday (Sep 16) at 1PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7PM (Sun 13th Sep) | 4.5ft (1.3m) 6s |
| Best Surf | 10PM (Thu 17th Sep) | 7ft (2.2m) 9s |
| Most Powerful | 7PM (Thu 17th Sep) | 8ft (2.5m) 9s |
Table - best surf conditions forecast for Little Austi and Main Beach over the next 16 days.
The Lowdown
G’day, I’m Rusty. Looking over this stretch from Little Austi and Main Beach, it’s a long, quiet period ahead. For the full 16 days, the swell is mostly tiny or flat, with only a few mornings offering a clean surface. The combined swell energy stays low, with most days in the weak range.
The water temp at the start sits around 64°F, which is normal for the time of year.
The first real chance to get wet comes Monday the 14th. The combined energy bumps to 225 (moderate) with a 4ft swell from the NE at 7 seconds—short period, beach break style. The cross-offshore wind from the NNW keeps it clean. It’s okay for intermediates, but not a standout.
After that, very quiet for a week. Then Friday the 18th morning goes glassy with a 3ft swell from the ESE at 7 seconds and combined energy of 106 (moderate). Clean but ordinary. Saturday the 19th offers a 3ft swell from the ESE at 11 seconds—longer period, better shape—with combined energy of 150 (moderate). Winds are light cross, so it’s still not a standout.
The best of the bunch is the Saturday the 26th morning: glassy conditions, a 3ft swell from the NE at 7 seconds, combined energy of 96 (weak but highest in the end run). It’s clean and you’ll get a few, but it’s nothing to write home about.
If you’re itching for a paddle, that Saturday the 26th morning is your best bet. For the rest, it’s quiet.
Rusty.
Short Range ForecastSome drizzle, heaviest during Tue afternoon. Warm (max 25°C on Mon morning, min 13°C on Sat night). Winds increasing (calm on Sun night, fresh winds from the S by Tue afternoon). | Days 5-7 Weather SummaryMostly dry. Warm (max 20°C on Fri morning, min 8°C on Wed night). Winds decreasing (fresh winds from the S on Wed afternoon, calm by Fri morning). | ||||||||||||||||||
Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | ||||||||||||||
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 4 | NE 5 | NE 5 | NE 6 | NE 6 | NE 5 | NE 7 | NE 7 | NE 7 | ENE 13 | ENE 14 | ENE 12 | NE 13 | NE 13 | NE 13 | ESE 8 | SE 8 | SE 8 | ESE 11 |
Wave Graph  | |||||||||||||||||||
 kJ | 19 | 16 | 68 | 150 | 81 | 103 | 140 | 77 | 55 | 18 | 20 | 15 | 7 | 7 | 7 | 117 | 113 | 84 | 260 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-on | cross-on | cross | cross-on | cross-on | cross | cross | cross-on | off | glassy | cross | off |
High Tide | 9:23AM1.44m | 9:37PM1.35m | 9:59AM1.44m | 10:18PM1.22m | 10:37AM1.41m | 11:00PM1.09m | 11:17AM1.36m | 11:46PM0.98m | 12:02PM1.30m | 00:43AM0.90m | 12:58PM1.25m | 1:57AM0.85m | |||||||
Low Tide | 3:10AM0.12m | 3:33PM0.18m | 3:42AM0.20m | 4:18PM0.23m | 4:14AM0.28m | 5:05PM0.29m | 4:47AM0.37m | 5:56PM0.37m | 5:23AM0.46m | 6:56PM0.43m | 6:08AM0.53m | 8:07PM0.47m | |||||||
 |  |  | | | | | |  |  | | | | | | | | | | |
 | — | 5:58 | — | — | 5:58 | — | — | 5:56 | — | — | 5:54 | — | — | 5:54 | — | — | 5:52 | — | — |
 | — | — | 5:45 | — | — | 5:45 | — | — | 5:46 | — | — | 5:46 | — | — | 5:47 | — | — | 5:49 | — |
mm | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 22 | 20 | 16 | 25 | 22 | 19 | 20 | 17 | 11 | 13 | 14 | 13 | 15 | 14 | 10 | 20 | 18 | 15 |
Feels °C | 13 | 18 | 16 | 16 | 21 | 17 | 18 | 18 | 14 | 5 | 5 | 6 | 5 | 10 | 10 | 8 | 16 | 15 | 12 |
Swell 1 Height (m) Direction Period (s) | S 10 | S 11 | S 10 | NE 6 | NE 6 | S 11 | NE 7 | NE 7 | NE 7 | NE 6 | ENE 14 | ENE 12 | NE 13 | NE 13 | NE 13 | S 9 | S 9 | S 8 | ESE 11 |
| kJ | 151 | 143 | 135 | 150 | 81 | 79 | 140 | 77 | 55 | 10 | 20 | 15 | 7 | 7 | 7 | 450 | 209 | 142 | 260 |
Swell 2 Height (m) Direction Period (s) | S 20 | NE 5 | ENE 13 | S 12 | S 11 | ENE 13 | S 10 | S 9 | ENE 13 | ENE 13 | NE 6 | — | S 19 | NE 13 | NE 13 | ESE 8 | SE 8 | SE 8 | S 9 |
| kJ | 119 | 16 | 17 | 174 | 119 | 17 | 30 | 15 | 17 | 18 | 2 | — | 7 | 7 | 7 | 117 | 113 | 84 | 155 |
Swell 3 Height (m) Direction Period (s) | ENE 13 | S 16 | ENE 13 | ENE 13 | ENE 13 | S 15 | ENE 12 | NE 13 | — | — | — | — | — | — | — | E 13 | E 10 | E 10 | S 16 |
| kJ | 17 | 46 | 17 | 17 | 17 | 5 | 15 | 6 | — | — | — | — | — | — | — | 3 | 18 | 52 | 47 |
Wind waves Height (m) Direction Period (s) | NE 4 | NNE 5 | NE 5 | NNE 6 | — | NE 5 | — | SW 4 | S 6 | S 8 | S 9 | S 10 | S 10 | S 10 | S 9 | — | NW 3 | NE 3 | NNE 3 |
| kJ | 19 | 32 | 68 | 101 | — | 103 | — | 12 | 76 | 1268 | 1628 | 2633 | 3139 | 2162 | 1343 | — | 1 | 4 | 2 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 1 | 8 | 115 | 0 | 0 | 55 | 0 | 1 | 50 | 7 | 827 | 661 | 121 | 41 | 41 | 0 | 0 | 8 | 0 |
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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