Surf Forecasts:
Little Austi and Main Beach surf forecast from 10 Aug 2026:
- Best quality surf: Wednesday 12 Aug, 1AM (local time) - 2.5ft (0.7m), 9s period, ENE swell with cross-offshore winds.
- Most powerful swell: Sunday 16 Aug, 10PM (local time) - 8ft (2.5m), 8s period, SE swell with 760 kJ wave energy.
- Next surfable swell (1★+): Wednesday 12 Aug, 1AM (local time) - 2.5ft (0.7m), 9s 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 Wednesday (Aug 12) at 1AM. The primary swell is predicted to be 0.7m and 9s period. 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 16 days are 2.5m 8s and forecast to arrive on Sunday (Aug 16) at 10PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.9m 8s period and expected on Thursday (Aug 13) at 10AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Wed 12th Aug) | 2.5ft (0.7m) 9s |
| Best Surf | 1AM (Wed 12th Aug) | 2.5ft (0.7m) 9s |
| Most Powerful | 10PM (Sun 16th Aug) | 8ft (2.5m) 8s |
Table - best surf conditions forecast for Little Austi and Main Beach over the next 16 days.
The Lowdown
Alright, let me tell you what we’ve got here… it’s bleak for a while.
To start, the whole 16-day window looks pretty grim for Little Austi and Main Beach. Honestly, for the first week and a half, you can scratch it off the list. There’s nothing I’d paddle out for. There’s a huge gap from now through until Saturday the 22nd of August where the surf is just not on.
We do see a little spike in size from Sunday the 16th of August afternoon, with the combined swell energy hitting 201, but it’s onshore, messy, and the period is a short 7 seconds – that’s just junky windswell. It stays like that for days, with energy climbing all the way up to 916 by Tuesday the 25th of August afternoon, but again, the wind is from the SSE, cross-onshore, making it choppy and ugly. The swell direction swings around to the SSE and SE, which isn’t the optimum ENE direction this spot really loves. The water temp is about average for this time of year, nothing crazy.
The only true standout, and I mean the *only* one worth even thinking about, is the very last slot: Wednesday morning, the 26th of August. We finally get a proper offshore breeze from the NNW, light at 15 km/h, and a solid 8ft swell from the SE with moderate energy (809). The period is only 8 seconds, so it’s not a long groundswell, but with that clean offshore wind, Little Austi and Main Beach (Big Island) should actually have some clean, punchy walls. That’s your window. It’s a week and a half away, so keep an eye on it, but that’s the one to circle on the calendar.
Overall, this is a long, dry spell with one glimmer at the very end. Hang in there, because that Wednesday morning could be a proper session if it holds.
Rusty
Short Range ForecastMostly dry. Very mild (max 19°C on Tue morning, min 9°C on Tue night). Winds decreasing (fresh winds from the W on Mon night, light winds from the SW by Thu afternoon). | Days 5-7 Weather SummaryLight rain (total 8mm), mostly falling on Sat night. Very mild (max 16°C on Fri morning, min 9°C on Thu night). Wind will be generally light. | ||||||||||||||||||
Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | ||||||||||||||
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 10 | NE 10 | ENE 10 | ENE 9 | ENE 9 | ENE 10 | ENE 9 | ENE 10 | ENE 9 | ENE 9 | ENE 10 | ENE 10 | ENE 9 | ENE 9 | ENE 9 | ENE 10 | ENE 10 | SSE 7 | SE 8 |
Wave Graph  | |||||||||||||||||||
 kJ | 181 | 94 | 81 | 76 | 50 | 52 | 50 | 55 | 35 | 29 | 31 | 30 | 29 | 17 | 17 | 18 | 19 | 181 | 674 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross | on | cross-off | glassy | on | cross | cross-on | cross-on | on | cross-on | on | on |
High Tide | 7:01AM1.10m | 7:01PM1.73m | 7:50AM1.17m | 7:50PM1.75m | 8:36AM1.23m | 8:37PM1.72m | 9:19AM1.29m | 9:21PM1.63m | 10:01AM1.32m | 10:04PM1.51m | 10:42AM1.34m | 10:47PM1.35m | |||||||
Low Tide | 1:02AM0.05m | 12:29PM0.28m | 1:50AM-0.01m | 1:23PM0.23m | 2:34AM-0.04m | 2:14PM0.20m | 3:15AM-0.02m | 3:03PM0.20m | 3:53AM0.03m | 3:52PM0.23m | 4:29AM0.10m | 4:42PM0.28m | |||||||
 |  | | |  | | | | | | | |  |  | | | |  |  | |
 | — | 6:41 | — | — | 6:39 | — | — | 6:39 | — | — | 6:37 | — | — | 6:35 | — | — | 6:35 | — | — |
 | — | — | 5:22 | — | — | 5:22 | — | — | 5:22 | — | — | 5:23 | — | — | 5:24 | — | — | 5:25 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 1 | — | 3 | 1 | 1 | — |
Temp °C | 14 | 19 | 18 | 12 | 18 | 17 | 13 | 16 | 15 | 11 | 16 | 15 | 13 | 16 | 15 | 14 | 16 | 15 | 14 |
Feels °C | 7 | 13 | 13 | 6 | 13 | 12 | 9 | 13 | 11 | 8 | 13 | 12 | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
Swell 1 Height (m) Direction Period (s) | NE 10 | NE 10 | S 10 | S 11 | S 9 | S 9 | ENE 9 | S 8 | S 9 | S 7 | S 8 | S 8 | ENE 9 | ENE 9 | ENE 9 | ENE 10 | S 11 | S 11 | ENE 10 |
| kJ | 181 | 94 | 592 | 498 | 202 | 158 | 50 | 273 | 373 | 181 | 161 | 142 | 29 | 17 | 17 | 18 | 37 | 37 | 18 |
Swell 2 Height (m) Direction Period (s) | E 13 | S 12 | ENE 10 | ENE 9 | ENE 9 | ENE 10 | S 13 | ENE 10 | ENE 9 | ENE 9 | ENE 10 | ENE 10 | S 16 | S 15 | S 13 | S 19 | ENE 10 | ENE 10 | S 13 |
| kJ | 4 | 11 | 81 | 76 | 50 | 52 | 3 | 55 | 35 | 29 | 31 | 30 | 20 | 18 | 32 | 28 | 19 | 20 | 14 |
Swell 3 Height (m) Direction Period (s) | S 12 | — | NNE 9 | — | S 14 | — | S 16 | S 16 | — | S 14 | S 19 | S 20 | S 20 | S 15 | S 14 | E 7 | S 16 | S 15 | — |
| kJ | 3 | — | 29 | — | 4 | — | 5 | 5 | — | 15 | 7 | 30 | 30 | 4 | 4 | 1 | 47 | 17 | — |
Wind waves Height (m) Direction Period (s) | WSW 4 | SW 4 | WSW 3 | W 4 | NW 3 | W 4 | SW 8 | S 8 | S 9 | W 2 | W 3 | — | S 8 | S 7 | S 7 | S 7 | SSE 7 | SSE 7 | SE 8 |
| kJ | 58 | 52 | 3 | 9 | 2 | 12 | 201 | 517 | 524 | 1 | 1 | — | 138 | 355 | 331 | 208 | 175 | 181 | 674 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 175 | 65 | 1 | 0 | 0 | 1 | 1 | 1 | 76 | 1 | 1 | 76 | 1 | 89 | 89 | 65 | 128 | 121 | 250 |
Best forecast wave conditions in Illawarra | |||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||
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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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