Surf Forecasts:
Little Austi and Main Beach surf forecast from 21 Aug 2026:
- Best quality surf: Monday 24 Aug, 10PM (local time) - 5.5ft (1.7m), 6s period, NNE swell with offshore winds.
- Most powerful swell: Wednesday 26 Aug, 7AM (local time) - 4.5ft (1.4m), 8s period, NE swell with 248 kJ wave energy.
- Next surfable swell (1★+): Monday 24 Aug, 10PM (local time) - 5.5ft (1.7m), 6s period with NNE 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 Monday (Aug 24) at 10PM. The primary swell is predicted to be 1.7m and 6s period with a secondary swell of 1.4m and 6s. 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 1.4m 8s and forecast to arrive on Wednesday (Aug 26) at 7AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 10s period and expected on Sunday (Aug 23) at 7AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Mon 24th Aug) | 5.5ft (1.7m) 6s |
| Best Surf | 10PM (Mon 24th Aug) | 5.5ft (1.7m) 6s |
| Most Powerful | 7AM (Wed 26th Aug) | 4.5ft (1.4m) 8s |
Table - best surf conditions forecast for Little Austi and Main Beach over the next 16 days.
The Lowdown
G'day, Rusty here, and I've got to be straight with you – the outlook for Little Austi and Main Beach is a bit of a mixed bag over the next couple of weeks. We're kicking off with a real slow start, nothing but poor conditions and tiny swell through the first few days. Don't even bother paddling out until we get a spark of life.
We're looking at a pretty big gap with no real surf on offer until the morning of Wednesday, 26th August. That's the first day where things look like they might actually turn on. The combined swell energy is moderate at 248, with a 5ft swell from the NE, period around 8 seconds. The wind is a light WSW breeze, cross-off, so the morning session should be clean. It's worth a look, but it's not a classic.
The real standout, the one you want to circle on the calendar, is the morning of Friday, 28th August. We've got a glassy, offshore WNW wind at just 3 mph, making for absolutely clean conditions. The swell is 4ft from the ENE, with a period of 9 seconds and a combined energy of 190. It's a moderate energy, well-shaped wave that should offer some fun, lined-up rides. Keep in mind the break is a beach and reef setup, and it's fairly consistent, though it can get crowded sometimes. The water temperature is about average for this time of year.
After that, the surf gets a bit messy again, with a lot of onshore winds and choppy conditions through the rest of the month and into early September. The wind swings around a lot, making it patchy. By the morning of Wednesday, 2nd September, we see a jump in swell height to 6ft, but the period is short at 6 seconds and the wind is a strong cross-onshore, so it's going to be a chop-fest. That one's for the die-hards only.
Looking further out, the morning of Thursday, 3rd September shows a significant spike in energy – 514, which is strong – with a 5ft NE swell, but it's a short period again and a cross-shore wind. The waves might be powerful but messy, and the cross-chop won't make it easy. Not a great option for a paddle.
Later, on the morning of Sunday, 6th September, we get another glassy window with a 4ft E swell and 8-second period, energy at 181. It's surfable, but ordinary. Nothing to get too excited about.
So, bottom line: the best bet in this 16-day window is the morning of Friday, 28th August. Glassy, clean, and a decent NE groundswell. Get out there if you can.
Rusty.
Short Range ForecastSome drizzle, heaviest during Sat night. Warm (max 22°C on Mon morning, min 12°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 15mm), heaviest on Tue night. Warm (max 20°C on Tue morning, min 13°C on Wed night). Wind will be generally light. | ||||||||||||||||||
Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | ||||||||||||||
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 6 | NE 6 | NE 6 | NE 6 | NE 6 | NE 6 | NE 5 | NE 5 | NE 5 | NE 6 | ENE 6 | NE 6 | ENE 7 | NE 8 | NE 8 | NE 8 | ENE 8 | ENE 8 | ENE 9 |
Wave Graph  | |||||||||||||||||||
 kJ | 30 | 9 | 9 | 14 | 9 | 18 | 30 | 23 | 59 | 128 | 43 | 105 | 218 | 248 | 215 | 136 | 133 | 140 | 181 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | on | glassy | cross-off | cross-off | off | cross-off | cross | off | cross-off | cross-off | cross-off | cross-off | cross-on | cross | cross-on | on | off |
High Tide | 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 | 7:42AM1.13m | 7:41PM1.53m | |||||||
Low Tide | 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 | 1:19PM0.32m | 2:15AM0.13m | ||||||
 |  | |  |  | | | | |  |  |  |  | | | | | | | |
 | — | 6:28 | — | — | 6:26 | — | — | 6:26 | — | — | 6:24 | — | — | 6:22 | — | — | 6:22 | — | — |
 | — | — | 5:30 | — | — | 5:30 | — | — | 5:30 | — | — | 5:31 | — | — | 5:32 | — | — | 5:32 | — |
mm | — | — | — | 1 | — | — | — | — | — | — | — | 4 | 10 | 1 | — | — | — | — | — |
Temp °C | 15 | 19 | 18 | 13 | 18 | 18 | 13 | 22 | 19 | 15 | 20 | 17 | 15 | 18 | 16 | 14 | 17 | 16 | 15 |
Feels °C | 11 | 16 | 15 | 12 | 15 | 14 | 11 | 18 | 16 | 15 | 18 | 16 | 13 | 16 | 12 | 12 | 16 | 15 | 14 |
Swell 1 Height (m) Direction Period (s) | NE 6 | NE 6 | SSW 8 | SSE 4 | S 8 | S 8 | S 10 | S 10 | S 10 | NE 6 | ENE 6 | S 9 | ENE 7 | NE 8 | NE 8 | NE 8 | ENE 8 | ENE 8 | ENE 9 |
| kJ | 30 | 9 | 23 | 10 | 235 | 90 | 200 | 123 | 94 | 128 | 43 | 39 | 218 | 248 | 215 | 136 | 133 | 140 | 181 |
Swell 2 Height (m) Direction Period (s) | S 10 | S 6 | NE 6 | S 12 | S 16 | S 12 | ENE 9 | NE 5 | S 18 | S 9 | S 9 | S 16 | S 8 | S 11 | S 11 | S 10 | S 10 | S 10 | S 9 |
| kJ | 2 | 3 | 9 | 65 | 81 | 229 | 8 | 23 | 6 | 62 | 41 | 20 | 12 | 20 | 21 | 31 | 30 | 45 | 26 |
Swell 3 Height (m) Direction Period (s) | SE 8 | S 8 | E 9 | NE 6 | NE 6 | E 15 | E 14 | ENE 8 | E 13 | S 17 | NE 9 | — | S 16 | S 15 | S 15 | — | S 14 | S 14 | S 13 |
| kJ | 2 | 6 | 2 | 14 | 9 | 4 | 4 | 6 | 3 | 6 | 22 | — | 46 | 19 | 4 | — | 15 | 15 | 30 |
Wind waves Height (m) Direction Period (s) | WSW 3 | W 3 | — | — | — | NE 6 | NE 5 | NNE 5 | NE 5 | — | — | NE 6 | — | — | — | — | — | — | — |
| kJ | 3 | 3 | — | — | — | 18 | 30 | 40 | 59 | — | — | 105 | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 159 | 260 | 250 | 1 | 1 | 38 | 1 | 1 | 104 | 0 | 0 | 0 | 0 | 0 | 13 | 1 | 5 | 34 | 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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