
Surf Forecasts:
Little Austi and Main Beach surf forecast from 11 Sep 2026:
- Best quality surf: Monday 14 Sep, 10PM (local time) - 6.5ft (2.0m), 7s period, NNE swell with offshore winds.
- Most powerful swell: Thursday 17 Sep, 4PM (local time) - 7ft (2.2m), 9s period, SSE swell with 692 kJ wave energy.
- Next surfable swell (1★+): Friday 11 Sep, 10PM (local time) - 4.5ft (1.3m), 10s period with SSE 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 (Sep 11) at 10PM. The primary swell is predicted to be 1.3m and 10s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Little Austi and Main Beach in the next 16 days are 2.2m 9s and forecast to arrive on Thursday (Sep 17) at 4PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 4.0m 10s period and expected on Wednesday (Sep 16) at 1PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Fri 11th Sep) | 4.5ft (1.3m) 10s |
| Best Surf | 10PM (Mon 14th Sep) | 6.5ft (2.0m) 7s |
| Most Powerful | 4PM (Thu 17th Sep) | 7ft (2.2m) 9s |
Table - best surf conditions forecast for Little Austi and Main Beach over the next 16 days.
The Lowdown
G’day, Rusty here. First time I’ve looked at Little Austi and Main Beach in a while, and I gotta say, the next couple of weeks are a mixed bag. The water’s sitting at about 64°, which is pretty normal for this time of year. But the surf… well, it’s mostly small and ordinary. A few glimpses of something worth paddling out for, but you’ll need patience.
We start off with a serious drought from Friday the 11th through Sunday the 13th of September. Swell’s barely a ripple – 0.7 ft to 2 ft – with no real energy behind it. Winds are mixed, but it’s just not enough wave to bother. A long gap.
Monday the 14th morning finally shows a bit of life – 3 ft from NE, period 6 seconds, but energy’s still weak at 83. Winds are light and cross-off, so the surface is clean, but it’s only a 1 out of 10 for quality. Not worth getting too excited about.
Tuesday the 15th and Wednesday the 16th are back to poor, tiny stuff. Then Thursday the 17th afternoon brings a sudden jump – 7 ft from the SSE, period 9 seconds, and solid energy of 699. That’s moderate-to-strong energy, but the wind’s a moderate cross-onshore making it choppy, and the quality is still poor. That size is expert territory, and the messy wind means it’s likely more for kite gear than paddle surfing.
Now, here’s the standout. Friday the 18th of September morning is your best bet across the whole window. We’ve got 5 ft from the SSE at 8 seconds, combined energy of 260 (moderate), and light cross-off winds from the NNE keeping it clean. The waves are in the intermediate range, not too big, and the break is fairly consistent. Conditions are actually good. This is the one to circle on the calendar. The afternoon goes downhill quick as the wind swings onshore, so make it an early session.
After that, Saturday the 19th is small again – 2 ft from the E, long period of 10 seconds, but energy is low at 70. Still, Saturday afternoon has glassy conditions with light NNE winds, so if you’re desperate for a glide on a longboard, it’s clean and tiny.
Sunday the 20th through to Wednesday the 23rd is mostly poor, with tiny swell and messy wind. Energy readings are weak, wave heights barely crack 2 ft. Another gap.
Then, another small window pops up. Thursday the 24th of September morning kicks in with 6 ft from the SSE, period 8 seconds, and combined energy of 401 – that’s moderate to strong. Winds are glassy from the south, so the surface will be clean. This is a solid second standout, maybe even better for size than the 18th, but it’s bigger so better for experienced surfers. The afternoon gets chopped up again.
Friday the 25th and Saturday the 26th are mostly poor, with onshore winds and choppy conditions.
Overall, the pick of the fortnight is Friday 18th September morning for clean, intermediate-friendly waves, with Thursday 24th September morning as a close second for bigger, glassy surf for the crew who can handle it. The rest is mostly flat or messy. Stay patient.
Rusty.
Short Range ForecastMostly dry. Warm (max 21°C on Sun morning, min 11°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Tue night. Warm (max 24°C on Mon morning, min 8°C on Wed night). Winds increasing (light winds from the NNW on Mon night, fresh winds from the SSW by Wed morning). | ||||||||||||||||||||
Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | |||||||||||||||
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) | ENE 15 | ENE 14 | ENE 13 | ENE 14 | ENE 14 | ENE 13 | NE 5 | NE 5 | NE 6 | NE 6 | NE 5 | NE 7 | NE 7 | SSE 4 | ENE 13 | ENE 14 | ENE 12 | E 14 | ENE 13 | SSE 9 | SSE 8 |
Wave Graph | |||||||||||||||||||||
22 | 19 | 18 | 19 | 19 | 16 | 10 | 55 | 195 | 66 | 110 | 276 | 75 | 33 | 18 | 20 | 15 | 6 | 17 | 692 | 370 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | cross-off | cross-off | cross | off | cross-off | cross | off | cross-off | cross | cross-off | cross-on | on | cross | cross | cross-on | cross | cross-on | cross-on | cross-off |
High Tide | 8:15PM1.56m | 8:46AM1.41m | 8:57PM1.46m | 9:23AM1.44m | 9:37PM1.35m | 9:59AM1.44m | 10:18PM1.22m | 10:37AM1.41m | 11:00PM1.09m | 11:17AM1.36m | 11:46PM0.98m | 12:02PM1.30m | 00:43AM0.90m | ||||||||
Low Tide | 2:02PM0.17m | 2:37AM0.06m | 2:48PM0.16m | 3:10AM0.12m | 3:33PM0.18m | 3:42AM0.20m | 4:18PM0.23m | 4:14AM0.28m | 5:05PM0.29m | 4:47AM0.37m | 5:56PM0.37m | 5:23AM0.46m | 6:56PM0.43m | ||||||||
6:01 | — | — | 6:01 | — | — | 5:58 | — | — | 5:58 | — | — | 5:56 | — | — | 5:54 | — | — | 5:54 | — | — | |
— | 5:44 | — | — | 5:44 | — | — | 5:45 | — | — | 5:45 | — | — | 5:46 | — | — | 5:46 | — | — | 5:47 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | — | — | — | — | — | — |
Temp °C | 17 | 16 | 13 | 20 | 18 | 14 | 21 | 19 | 16 | 24 | 20 | 18 | 20 | 18 | 11 | 14 | 14 | 12 | 14 | 13 | 11 |
Feels °C | 15 | 14 | 13 | 17 | 14 | 13 | 17 | 15 | 15 | 21 | 17 | 17 | 18 | 16 | 4 | 5 | 6 | 5 | 8 | 8 | 8 |
Swell 1 Height (m) Direction Period (s) | S 10 | S 10 | S 10 | S 12 | S 10 | S 10 | S 11 | S 10 | NE 6 | NE 6 | S 11 | NE 7 | NE 7 | NE 6 | NE 6 | S 17 | ENE 12 | NE 12 | ENE 13 | S 17 | SSE 8 |
550 | 423 | 326 | 336 | 214 | 148 | 143 | 138 | 109 | 66 | 82 | 189 | 75 | 33 | 6 | 22 | 15 | 6 | 17 | 24 | 370 | |
Swell 2 Height (m) Direction Period (s) | ENE 15 | ENE 14 | S 19 | S 19 | S 19 | S 20 | NE 5 | ENE 13 | S 12 | S 11 | ENE 13 | S 10 | S 9 | ENE 13 | ENE 13 | ENE 14 | — | E 14 | S 18 | NE 13 | S 19 |
22 | 19 | 62 | 175 | 113 | 119 | 10 | 17 | 174 | 116 | 17 | 46 | 26 | 17 | 18 | 20 | — | 4 | 6 | 7 | 27 | |
Swell 3 Height (m) Direction Period (s) | ENE 15 | E 10 | ENE 13 | ENE 14 | ENE 14 | ENE 13 | S 16 | ENE 13 | ENE 13 | ENE 13 | S 15 | ENE 12 | ENE 13 | — | — | — | — | — | — | — | E 13 |
22 | 2 | 18 | 19 | 19 | 16 | 46 | 17 | 17 | 17 | 5 | 15 | 16 | — | — | — | — | — | — | — | 3 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | ENE 3 | NE 4 | NE 5 | NE 5 | NE 6 | — | NE 5 | NE 7 | SW 3 | SSE 4 | S 9 | S 9 | S 10 | S 10 | S 9 | SSE 9 | — |
— | — | — | — | 5 | 10 | 22 | 55 | 195 | — | 110 | 276 | 2 | 32 | 1904 | 2200 | 2526 | 2671 | 1172 | 692 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1 | 38 | 1 | 8 | 438 | 1 | 8 | 438 | 0 | 0 | 55 | 0 | 1 | 41 | 89 | 827 | 661 | 121 | 41 | 89 | 0 |
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.










