Surf Forecasts:
Little Austi and Main Beach surf forecast from 20 Aug 2026:
- Best quality surf: Monday 24 Aug, 10PM (local time) - 4.5ft (1.3m), 6s period, NE swell with offshore winds.
- Most powerful swell: Wednesday 26 Aug, 10AM (local time) - 4ft (1.2m), 8s period, NE swell with 196 kJ wave energy.
- Next surfable swell (1★+): Friday 21 Aug, 1AM (local time) - 4ft (1.2m), 6s 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 Friday (Aug 21) at 1AM. The primary swell is predicted to be 1.2m and 6s 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 1.2m 8s and forecast to arrive on Wednesday (Aug 26) at 10AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.9m 11s period and expected on Thursday (Aug 27) at 10AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Fri 21st Aug) | 4ft (1.2m) 6s |
| Best Surf | 10PM (Mon 24th Aug) | 4.5ft (1.3m) 6s |
| Most Powerful | 10AM (Wed 26th Aug) | 4ft (1.2m) 8s |
Table - best surf conditions forecast for Little Austi and Main Beach over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s have a look at what’s cooking for Little Austi and Main Beach.
Honestly, the next couple of weeks are looking pretty flat and ordinary for this stretch. There’s a real lack of any proper swell energy, and the wind windows are narrow. The water’s sitting at 65°, which is about average for this time of year, so nothing unusual there.
The best chance to get wet will be tomorrow, Thursday the 20th of August, in the afternoon. It’s not going to be a classic, but there’ll be a small, weak 3ft swell from the NE with a short period of 6 seconds, and the wave energy is weak (84). The wind is a light NNE cross-off, so it’ll be clean enough for a small wave grovel. It’s a beach and reef setup, and it can get a crowd sometimes, so don’t expect to have it to yourself.
Friday the 21st looks a little better in the morning. The swell drops to 3ft from the NE, but the wind goes glassy offshore from the NW at 3 mph. It’ll be clean, but it’s still small and weak – the energy is real low (68). It’s surfable, but you’ll be working for every turn.
After that, it’s a write-off for a solid week. From Saturday the 22nd right through to the end of the month, the swell is tiny, the winds are messy, or it’s just onshore. There’s a brief uptick at the end of August, but the swell that comes on the 29th and 30th – up to 6ft and 7ft from the NE – comes with strong cross-onshore winds, making it a choppy, blown-out mess. The wave energy ramps up to moderate (271) and then strong (874) on the 30th, but with that wind, it’s more of a kitesurfing kind of day than a paddle session.
The first few days of September are a repeat of the same pattern: small, weak NE swells, and the winds are marginal. The best looking morning in that stretch is Tuesday the 1st of September, with a tiny 3ft ENE swell and glassy conditions, but it’s barely a ripple.
There’s no standout in this whole window. The best you’ll get is a small, clean, ordinary wave on Friday morning the 21st of August. It’s a long, flat run, and for this area, that’s not unusual.
Rusty.
Short Range ForecastMostly dry. Warm (max 22°C on Fri morning, min 11°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 12mm), heaviest on Tue afternoon. Warm (max 21°C on Mon morning, min 13°C on Sun night). Wind will be generally light. | ||||||||||||||||||
Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | ||||||||||||||
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) | ENE 6 | NE 6 | NE 6 | NE 6 | NE 6 | NE 6 | NE 6 | NE 6 | NE 9 | NE 4 | NE 5 | ENE 7 | NE 6 | NE 6 | NE 6 | ENE 7 | NE 8 | NE 8 | NE 8 |
Wave Graph  | |||||||||||||||||||
 kJ | 109 | 59 | 64 | 29 | 9 | 5 | 9 | 9 | 39 | 18 | 35 | 81 | 75 | 78 | 113 | 159 | 196 | 158 | 100 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | glassy | cross-off | cross-off | glassy | glassy | glassy | cross-off | off | cross-off | cross | off | cross-off | cross-off | off | cross-off | cross-off | cross-off |
High Tide | 2:26AM0.86m | 2:55PM1.25m | 3:47AM0.84m | 4:00PM1.27m | 4:57AM0.87m | 4:57PM1.32m | 5:49AM0.92m | 5:45PM1.38m | 6:31AM0.99m | 6:26PM1.45m | 7:08AM1.06m | 7:04PM1.50m | |||||||
Low Tide | 7:53AM0.53m | 10:06PM0.48m | 9:01AM0.55m | 11:09PM0.43m | 10:09AM0.54m | 11:58PM0.37m | 11:07AM0.49m | 00:37AM0.30m | 11:56AM0.43m | 1:12AM0.23m | 12:39PM0.37m | 1:44AM0.17m | |||||||
 |  |  |  | | | | | | | | | |  |  |  |  | | | |
 | — | 6:30 | — | — | 6:28 | — | — | 6:26 | — | — | 6:26 | — | — | 6:24 | — | — | 6:22 | — | — |
 | — | — | 5:29 | — | — | 5:30 | — | — | 5:30 | — | — | 5:30 | — | — | 5:31 | — | — | 5:32 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 6 | 4 | 1 | 1 | — |
Temp °C | 16 | 22 | 21 | 15 | 20 | 20 | 14 | 17 | 16 | 14 | 21 | 19 | 16 | 20 | 17 | 16 | 20 | 17 | 13 |
Feels °C | 15 | 19 | 20 | 12 | 17 | 18 | 14 | 14 | 14 | 13 | 18 | 16 | 16 | 18 | 16 | 15 | 20 | 13 | 9 |
Swell 1 Height (m) Direction Period (s) | ENE 6 | NE 6 | S 10 | NE 6 | NE 6 | S 8 | S 11 | S 8 | S 8 | S 10 | NE 5 | S 10 | NE 6 | NE 6 | ENE 9 | ENE 7 | NE 8 | S 8 | S 10 |
| kJ | 109 | 59 | 2 | 29 | 9 | 12 | 39 | 169 | 95 | 188 | 35 | 87 | 75 | 78 | 34 | 159 | 196 | 260 | 627 |
Swell 2 Height (m) Direction Period (s) | S 12 | S 11 | — | S 10 | S 9 | NE 6 | SSE 4 | NE 6 | S 12 | NE 9 | S 10 | S 17 | S 9 | S 9 | S 9 | S 9 | S 11 | NE 8 | NE 8 |
| kJ | 3 | 2 | — | 2 | 6 | 5 | 5 | 9 | 143 | 12 | 116 | 23 | 62 | 41 | 41 | 15 | 9 | 158 | 100 |
Swell 3 Height (m) Direction Period (s) | — | — | SE 9 | E 9 | SSW 5 | SSW 5 | NE 6 | S 16 | E 15 | S 18 | ENE 8 | S 15 | NE 9 | NE 9 | S 15 | S 16 | S 16 | S 14 | — |
| kJ | — | — | 3 | 2 | 2 | 4 | 9 | 21 | 4 | 6 | 7 | 4 | 13 | 23 | 19 | 5 | 19 | 4 | — |
Wind waves Height (m) Direction Period (s) | — | WNW 2 | NE 6 | WSW 3 | W 3 | — | — | — | NE 9 | NE 4 | — | ENE 7 | — | — | NE 6 | N 4 | WSW 4 | — | W 3 |
| kJ | — | 1 | 64 | 6 | 2 | — | — | — | 39 | 18 | — | 81 | — | — | 113 | 20 | 28 | — | 2 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 159 | 336 | 330 | 1 | 1 | 19 | 1 | 1 | 104 | 0 | 0 | 0 | 0 | 0 | 1 | 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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