Surf Forecasts:
Little Austi and Main Beach surf forecast from 6 Sep 2026:
- Best quality surf: Saturday 12 Sep, 10PM (local time) - 4.5ft (1.3m), 10s period, SSE swell with offshore winds.
- Most powerful swell: Tuesday 8 Sep, 10AM (local time) - 7.5ft (2.3m), 8s period, SSE swell with 688 kJ wave energy.
- Next surfable swell (1★+): Monday 7 Sep, 10AM (local time) - 1.5ft (0.4m), 11s 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 Monday (Sep 07) at 10AM. The primary swell is predicted to be 0.4m and 11s 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 2.3m 8s and forecast to arrive on Tuesday (Sep 08) at 10AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.5m 10s period and expected on Wednesday (Sep 09) at 10PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10AM (Mon 7th Sep) | 1.5ft (0.4m) 11s |
| Best Surf | 10PM (Sat 12th Sep) | 4.5ft (1.3m) 10s |
| Most Powerful | 10AM (Tue 8th Sep) | 7.5ft (2.3m) 8s |
Table - best surf conditions forecast for Little Austi and Main Beach over the next 16 days.
The Lowdown
G’day, Rusty here. Let’s break down what’s ahead for Little Austi and Main Beach. To be honest, the next couple of weeks look pretty flat and messy. Water temp is around 64° with a slight anomaly of 0.5°, so about average for this time of year.
Right off the bat, Sunday the 6th is a total dud—1ft NE swell with a cross-onshore breeze and only 25 units of combined energy. Monday the 7th morning shapes up a bit with a light NNW cross-off wind and a 1ft SSE groundswell at 11 seconds, energy up to 53. It’s surfable but nothing to get excited about.
Monday afternoon the 7th sees a jump to 5ft from the SSE at 9 seconds with 339 units, but it’s onshore and messy. Tuesday the 8th brings the biggest swell of the whole stretch: 8ft SSE at 8 seconds Tuesday morning with 697 units, and 6ft in the afternoon. Both are cross-onshore and choppy—honestly, this looks better for kite surfing than paddling. From Wednesday the 9th through Sunday the 13th, it’s tiny, often under 2ft, with poor conditions across the board.
The one half-decent window is Monday the 14th. Monday morning has a clean 3ft NE swell with light offshore NW wind and 62 units—surfable but ordinary. Monday afternoon is a touch better: 4ft NE at 5 seconds with a light cross-off WSW breeze and 96 units. Not a standout, but it’s your best bet.
The second week is quiet. Tuesday the 15th has some knee-high SSE swell at 2-3ft with 207-232 energy, but it’s onshore or cross-onshore. Wednesday the 16th is similar. Thursday the 17th morning shows a clean 1ft SSE groundswell with light offshore N wind and 54 energy—surfable but tiny. The rest of the week through Monday the 21st is all under 2ft, mostly poor.
The pick of the whole outlook? Monday the 14th afternoon, with that 4ft NE swell and light cross-off wind. It’s not big, not powerful, but it’s the cleanest rideable wave in a very long, flat stretch. Keep your expectations low and your eyes on the forecast—things can change.
Rusty.
Short Range ForecastMostly dry. Warm (max 20°C on Mon morning, min 10°C on Tue night). Winds increasing (light winds from the WNW on Sun night, fresh winds from the S by Mon night). | Days 5-7 Weather SummaryMostly dry. Very mild (max 18°C on Fri morning, min 9°C on Wed night). Winds decreasing (fresh winds from the S on Wed afternoon, light winds from the WSW by Fri night). | |||||||||||||||||||
Sun 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | ||||||||||||||
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 | E 10 | SSE 11 | SSE 9 | ENE 10 | SSE 8 | SSE 8 | SE 7 | SE 7 | ESE 13 | ESE 11 | ESE 10 | ESE 10 | ENE 15 | E 15 | ENE 14 | ENE 13 | ENE 14 | ENE 14 | ENE 14 |
Wave Graph  | ||||||||||||||||||||
 kJ | 16 | 8 | 44 | 328 | 11 | 688 | 471 | 52 | 43 | 35 | 70 | 39 | 18 | 21 | 17 | 19 | 18 | 19 | 20 | 18 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-off | cross-off | on | cross-on | cross-on | cross-on | off | cross-on | cross-on | cross | cross-on | on | cross-off | on | on | cross | on | cross-on | off |
High Tide | 5:00AM1.00m | 4:59PM1.53m | 5:58AM1.09m | 5:56PM1.59m | 6:46AM1.18m | 6:46PM1.62m | 7:28AM1.27m | 7:32PM1.61m | 8:08AM1.35m | 8:15PM1.56m | 8:46AM1.41m | 8:57PM1.46m | ||||||||
Low Tide | 10:57PM0.22m | 10:24AM0.42m | 11:54PM0.14m | 11:28AM0.35m | 00:42AM0.07m | 12:24PM0.27m | 1:23AM0.03m | 1:15PM0.21m | 2:01AM0.03m | 2:02PM0.17m | 2:37AM0.06m | 2:48PM0.16m | 3:10AM0.12m | |||||||
 |  | |  |  | | | | | | | | | | | | | | | | |
 | — | — | 6:07 | — | — | 6:05 | — | — | 6:05 | — | — | 6:03 | — | — | 6:01 | — | — | 6:01 | — | — |
 | 5:39 | — | — | 5:40 | — | — | 5:42 | — | — | 5:42 | — | — | 5:43 | — | — | 5:44 | — | — | 5:44 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 18 | 14 | 20 | 18 | 14 | 16 | 16 | 12 | 15 | 14 | 13 | 15 | 14 | 12 | 18 | 16 | 12 | 17 | 16 | 11 |
Feels °C | 14 | 12 | 17 | 15 | 9 | 13 | 13 | 9 | 10 | 6 | 6 | 10 | 10 | 9 | 14 | 11 | 9 | 15 | 14 | 9 |
Swell 1 Height (m) Direction Period (s) | NE 7 | S 9 | SSE 8 | SSE 9 | ENE 10 | E 11 | SSE 8 | S 9 | S 8 | ESE 13 | ESE 11 | ESE 10 | ESE 10 | S 10 | S 10 | S 10 | S 10 | S 11 | S 10 | S 9 |
| kJ | 16 | 525 | 277 | 328 | 11 | 9 | 471 | 264 | 140 | 35 | 70 | 39 | 18 | 1308 | 910 | 847 | 489 | 683 | 400 | 251 |
Swell 2 Height (m) Direction Period (s) | E 11 | E 10 | SSE 11 | NE 8 | NE 8 | — | E 10 | SE 7 | SE 7 | ENE 9 | SSW 16 | S 22 | S 22 | ESE 9 | E 15 | ENE 14 | S 12 | S 18 | S 17 | ENE 14 |
| kJ | 9 | 8 | 44 | 3 | 2 | — | 8 | 52 | 43 | 8 | 53 | 39 | 85 | 8 | 17 | 19 | 184 | 57 | 93 | 18 |
Swell 3 Height (m) Direction Period (s) | — | NE 6 | NE 8 | E 10 | — | — | NE 9 | E 10 | ENE 9 | S 16 | NE 16 | E 16 | E 16 | ENE 15 | E 10 | E 10 | ENE 13 | ENE 14 | ENE 14 | E 9 |
| kJ | — | 2 | 9 | 8 | — | — | 3 | 8 | 8 | 5 | 10 | 5 | 5 | 21 | 2 | 2 | 18 | 19 | 20 | 2 |
Wind waves Height (m) Direction Period (s) | S 9 | — | — | — | S 8 | SSE 8 | — | NW 2 | SW 3 | S 8 | S 10 | S 10 | S 10 | S 11 | — | — | — | — | ENE 2 | NNE 3 |
| kJ | 503 | — | — | — | 958 | 688 | — | 1 | 5 | 930 | 2471 | 1478 | 1454 | 1888 | — | — | — | — | 1 | 3 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 128 | 1 | 0 | 177 | 89 | 17 | 100 | 0 | 76 | 466 | 7 | 41 | 41 | 2 | 34 | 121 | 1 | 34 | 38 | 1 |
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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