Surf Forecasts:
Little Austi and Main Beach surf forecast from 14 Sep 2026:
- Best quality surf: Monday 14 Sep, 10PM (local time) - 5.5ft (1.7m), 6s period, NNE swell with offshore winds.
- Most powerful swell: Thursday 17 Sep, 10PM (local time) - 5.5ft (1.7m), 9s period, SSE swell with 484 kJ wave energy.
- Next surfable swell (1★+): Monday 14 Sep, 1PM (local time) - 2.5ft (0.8m), 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 Monday (Sep 14) at 1PM. The primary swell is predicted to be 0.8m and 6s 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 1.7m 9s and forecast to arrive on Thursday (Sep 17) at 10PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 4.0m 9s period and expected on Wednesday (Sep 16) at 7PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1PM (Mon 14th Sep) | 2.5ft (0.8m) 6s |
| Best Surf | 10PM (Mon 14th Sep) | 5.5ft (1.7m) 6s |
| Most Powerful | 10PM (Thu 17th Sep) | 5.5ft (1.7m) 9s |
Table - best surf conditions forecast for Little Austi and Main Beach over the next 16 days.
The Lowdown
Alright, mate, Rusty here. Let's have a look at what's on the cards for Little Austi and Main Beach. It's a bit of a slow burner, this forecast. We've got a long stretch of flatness or rubbish conditions before things finally start looking up.
The start of the period is a real write-off. From Monday the 14th right through until Tuesday the 22nd of September, it's mostly small, weak, and messy. You'll see a lot of tiny swells with poor, choppy conditions and onshore or cross-onshore winds. There's a little bump of 4ft on Monday the 14th from the NE with a short 7-second period, but the wind is cross-off and the combined energy is only moderate (212), and the score is nothing to write home about. After that, it's all downhill for days. We're talking about a solid 8-day gap with nothing worth paddling out for.
Now, let's fast forward. The first real glimmer of hope is on Wednesday the 23rd of September. The morning is the standout of the whole 16-day window. We've got a 4ft swell from the SSE, and the period jumps to 12 seconds – that's a proper groundswell with some decent energy. The combined energy is a solid 510, which is moderate to strong. The absolute killer here is the wind: dead calm, glassy conditions. This is going to be clean as a whistle. The water temp is 64°, which is pretty normal for this time of year. This is the one to aim for. The afternoon does get a bit of a cross-shore wind, but the morning session should be worth the wait.
After that, it gets a bit dicey again. Thursday the 24th is blown out with strong cross-onshore winds. Friday the 25th has a glassy morning but only a small, weak 3ft NE windswell. There's a bit of a pulse late in the period.
Sunday the 27th of September brings another possible session in the afternoon. The swell jumps to 7ft from the SSE, but the period is a short 7 seconds. The wind is offshore from the NW at 15 mph, so it will be clean. The combined energy is strong (427), but that short period means it'll be a bit of a close-out on a beach break setup. It's big enough that it's probably only for the experienced crew.
So, to sum it up: the entire first week plus is a total bust. The only real standout is the morning of Wednesday the 23rd of September. Glassy, solid groundswell, clean conditions. That's the one to circle on the calendar. The 7ft pulse on Sunday the 27th in the afternoon is worth a mention for the experts looking for some power, but keep an eye on the wind.
Rusty.
Short Range ForecastSome drizzle, heaviest during Tue night. Warm (max 23°C on Mon morning, min 9°C on Tue night). Winds increasing (light winds from the NNW on Mon night, fresh winds from the S by Wed afternoon). | Days 4-6 Weather SummaryMostly dry. Warm (max 25°C on Sat morning, min 8°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | |||||||||||||||
AM | PM | 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 7 | NE 6 | NE 6 | NE 7 | NE 7 | NE 7 | ENE 14 | ENE 14 | E 14 | NE 13 | ENE 13 | SSE 9 | E 12 | E 12 | E 12 | NE 4 | NE 3 | NNE 4 | NE 5 | NE 5 | S 4 |
Wave Graph  | |||||||||||||||||||||
 kJ | 127 | 75 | 201 | 79 | 55 | 18 | 20 | 19 | 6 | 7 | 17 | 422 | 3 | 3 | 3 | 3 | 7 | 7 | 10 | 9 | 16 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | off | cross | cross-on | cross-on | cross-on | cross-on | cross | cross-on | on | off | glassy | cross | off | cross-on | cross | off | off | cross-off | cross-off |
High Tide | 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 | 2:06PM1.22m | 3:21AM0.85m | 3:17PM1.23m | |||||||||
Low Tide | 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 | 7:08AM0.59m | 9:23PM0.47m | 8:26AM0.60m | 10:27PM0.42m | ||||||||
 | |  |  | |  | | |  | | | | | | | | | | | | | |
 | 5:58 | — | — | 5:56 | — | — | 5:54 | — | — | 5:54 | — | — | 5:52 | — | — | 5:50 | — | — | 5:50 | — | — |
 | — | 5:45 | — | — | 5:46 | — | — | 5:46 | — | — | 5:47 | — | — | 5:49 | — | — | 5:49 | — | — | 5:50 | — |
mm | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 22 | 19 | 21 | 19 | 12 | 14 | 14 | 13 | 15 | 14 | 10 | 21 | 18 | 17 | 25 | 24 | 18 | 31 | 30 | 22 |
Feels °C | 20 | 19 | 17 | 18 | 16 | 7 | 6 | 6 | 5 | 11 | 11 | 8 | 17 | 16 | 13 | 21 | 20 | 15 | 27 | 26 | 18 |
Swell 1 Height (m) Direction Period (s) | NE 6 | S 11 | NE 6 | NE 7 | NE 7 | NE 7 | NE 7 | ENE 14 | NE 12 | S 10 | S 10 | SSE 9 | SSE 9 | S 9 | S 9 | S 9 | S 9 | S 8 | NE 5 | NE 5 | NE 5 |
| kJ | 68 | 79 | 116 | 79 | 55 | 16 | 2 | 19 | 6 | 1514 | 809 | 422 | 311 | 281 | 164 | 97 | 71 | 34 | 10 | 9 | 4 |
Swell 2 Height (m) Direction Period (s) | S 11 | ENE 13 | S 10 | S 9 | S 9 | ENE 13 | ENE 14 | — | E 14 | NE 13 | ENE 13 | NE 13 | S 18 | S 18 | S 16 | S 16 | S 16 | NNE 4 | S 9 | S 8 | S 11 |
| kJ | 119 | 17 | 30 | 27 | 14 | 18 | 20 | — | 4 | 7 | 17 | 7 | 26 | 54 | 185 | 83 | 79 | 7 | 13 | 5 | 9 |
Swell 3 Height (m) Direction Period (s) | ENE 13 | S 15 | ENE 12 | NE 13 | ENE 13 | S 16 | — | — | — | — | S 19 | S 19 | E 12 | E 12 | E 12 | NE 4 | NE 12 | S 15 | S 12 | S 11 | E 8 |
| kJ | 17 | 5 | 15 | 6 | 17 | 5 | — | — | — | — | 7 | 7 | 3 | 3 | 3 | 3 | 6 | 17 | 11 | 10 | 1 |
Wind waves Height (m) Direction Period (s) | NE 7 | NE 6 | NE 6 | SW 3 | S 6 | S 9 | S 10 | S 9 | S 11 | S 10 | — | — | — | — | NNE 3 | WNW 2 | NE 3 | NW 2 | NW 3 | WNW 2 | S 4 |
| kJ | 127 | 75 | 201 | 4 | 32 | 1455 | 1970 | 1847 | 3401 | 1922 | — | — | — | — | 1 | 1 | 7 | 1 | 2 | 1 | 16 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 38 | 0 | 1 | 878 | 41 | 827 | 661 | 41 | 5 | 34 | 0 | 1 | 8 | 1 | 1 | 8 | 1 | 75 | 236 | 39 |
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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