Surf Forecasts:
Little Austi and Main Beach surf forecast from 20 Jul 2026:
- Best quality surf: Tuesday 21 Jul, 4AM (local time) - 5ft (1.5m), 10s period, ENE swell with offshore winds.
- Most powerful swell: Tuesday 21 Jul, 4AM (local time) - 5ft (1.5m), 10s period, ENE swell with 492 kJ wave energy.
- Next surfable swell (1★+): Tuesday 21 Jul, 4AM (local time) - 5ft (1.5m), 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 Tuesday (Jul 21) at 4AM. The primary swell is predicted to be 1.5m and 10s 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 1.5m 10s and forecast to arrive on Tuesday (Jul 21) at 4AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.2m 14s period and expected on Saturday (Jul 25) at 1AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Tue 21st Jul) | 5ft (1.5m) 10s |
| Best Surf | 4AM (Tue 21st Jul) | 5ft (1.5m) 10s |
| Most Powerful | 4AM (Tue 21st Jul) | 5ft (1.5m) 10s |
Table - best surf conditions forecast for Little Austi and Main Beach over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s get into it for Little Austi and Main Beach.
We’ve got a bit of a mixed bag coming up. The first few days offer some clean, rideable waves, but then we hit a long, flat spell that stretches for over a week. The real standout is right at the start, so you’ll want to be on it early.
Tuesday, July 21st is the pick of the entire run. We’ve got a solid 5ft swell from the ENE, with a clean 10-second period. The wind is light and cross-offshore from the NNW at 6 mph, which is going to keep the surface glassy. The combined energy is pumping at a solid 410, so there’s proper push behind it. This is a beach and reef setup, so it’s best for intermediate surfers. For the morning session, this is the one to go for.
Wednesday, July 22nd is still worth a paddle. The swell drops a touch to 4ft, but it’s still from the ENE and the period holds at 10 seconds. The wind is light and cross-off again, with a slight air in the afternoon. Energy is solid at 238. It’s not as punchy as Tuesday, but it will be clean and fun.
Then the wheels fall off. From Thursday, July 23rd right through to the end of the month, the swell collapses. We’re looking at waves under 3ft, dropping to barely a ripple. The wind is mostly cross-off or clean, but there’s just no energy to work with. The combined energy values drop to two-digit figures, bottoming out at 6. This is a flat spell that lasts about 10 days.
Now, there’s a flicker of life on Monday, August 3rd. A long-period groundswell from the SSE (18 seconds) pushes in, with a combined energy of 591. Swell heights are around 3ft to 4ft, and the wind is a solid cross-offshore from the W at 15 mph. This is a clean, powerful swell, but the long period means it might be a bit straight and fast for the beach break. It’s looking more like a kite surfer’s dream than a perfect paddle session. The quality is a bit questionable, so don’t get your hopes up too high.
The rest of the first week of August is mostly flat and poor, with just a few marginal pulses.
So, the bottom line: get out on Tuesday morning, July 21st, for the best waves of the next two weeks. After that, it’s a long wait for anything rideable.
Rusty.
Short Range ForecastMostly dry. Warm (max 21°C on Wed morning, min 9°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Very mild (max 19°C on Sat morning, min 6°C on Thu night). Wind will be generally light. | ||||||||||||||||||
Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 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 11 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 9 | ENE 9 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | E 10 | ENE 8 | ENE 8 | ENE 8 | SE 14 |
Wave Graph  | |||||||||||||||||||
 kJ | 575 | 410 | 331 | 296 | 231 | 231 | 172 | 119 | 94 | 53 | 28 | 28 | 27 | 15 | 7 | 7 | 6 | 6 | 7 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross-off | cross-off | cross-off | cross-off | cross | glassy | cross-off |
High Tide | 00:57AM1.14m | 1:53PM1.27m | 1:54AM1.01m | 2:46PM1.28m | 3:00AM0.92m | 3:41PM1.30m | 4:12AM0.87m | 4:35PM1.33m | 5:17AM0.88m | 5:25PM1.37m | 6:11AM0.91m | 6:11PM1.42m | |||||||
Low Tide | 7:14AM0.31m | 8:15PM0.49m | 7:57AM0.39m | 9:28PM0.50m | 8:45AM0.45m | 10:38PM0.47m | 9:39AM0.49m | 11:37PM0.42m | 10:35AM0.49m | 00:25AM0.36m | 11:28AM0.47m | 1:07AM0.30m | |||||||
 |  | | |  | | | |  | | | | | | | | | |  | |
 | — | 6:56 | — | — | 6:56 | — | — | 6:56 | — | — | 6:54 | — | — | 6:54 | — | — | 6:54 | — | — |
 | — | — | 5:07 | — | — | 5:07 | — | — | 5:08 | — | — | 5:08 | — | — | 5:09 | — | — | 5:10 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 11 | 18 | 17 | 12 | 21 | 20 | 14 | 17 | 16 | 10 | 13 | 14 | 9 | 19 | 19 | 11 | 16 | 15 | 13 |
Feels °C | 9 | 14 | 14 | 10 | 19 | 17 | 11 | 11 | 10 | 3 | 9 | 11 | 5 | 15 | 15 | 6 | 13 | 13 | 11 |
Swell 1 Height (m) Direction Period (s) | ENE 11 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 9 | ENE 9 | S 8 | S 9 | S 10 | S 14 | S 11 | S 10 | S 11 | S 10 | S 10 | S 9 |
| kJ | 575 | 410 | 331 | 296 | 231 | 231 | 172 | 119 | 94 | 153 | 425 | 472 | 1837 | 686 | 358 | 272 | 424 | 426 | 264 |
Swell 2 Height (m) Direction Period (s) | S 11 | S 11 | S 10 | S 10 | S 10 | S 11 | S 10 | S 10 | S 9 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | ENE 8 | S 15 | ENE 8 | ENE 8 | NE 8 |
| kJ | 82 | 55 | 31 | 17 | 17 | 20 | 8 | 8 | 15 | 53 | 28 | 28 | 27 | 15 | 6 | 72 | 6 | 6 | 2 |
Swell 3 Height (m) Direction Period (s) | SE 14 | S 15 | S 15 | S 14 | SE 13 | S 12 | — | E 9 | SE 8 | S 17 | E 7 | S 21 | — | S 19 | E 10 | ENE 8 | ENE 8 | ENE 8 | SE 14 |
| kJ | 8 | 19 | 17 | 4 | 7 | 3 | — | 2 | 3 | 6 | 1 | 76 | — | 29 | 7 | 7 | 6 | 6 | 7 |
Wind waves Height (m) Direction Period (s) | N 3 | N 3 | NE 4 | NNE 4 | — | — | W 3 | SW 5 | SW 5 | WSW 4 | S 9 | — | — | — | — | WSW 3 | S 10 | — | — |
| kJ | 6 | 5 | 10 | 25 | — | — | 5 | 24 | 34 | 6 | 679 | — | — | — | — | 4 | 759 | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 55 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 8 | 1 | 1 | 1 | 1 | 1 | 1 | 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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