Surf Forecasts:
Little Austi and Main Beach surf forecast from 8 Sep 2026:
- Best quality surf: Saturday 12 Sep, 1AM (local time) - 4.5ft (1.3m), 10s period, SSE swell with cross-offshore winds.
- Most powerful swell: Tuesday 15 Sep, 4PM (local time) - 7.5ft (2.3m), 8s period, SSE swell with 576 kJ wave energy.
- Next surfable swell (1★+): Wednesday 9 Sep, 4AM (local time) - 2.5ft (0.7m), 7s period with SE 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 (Sep 09) at 4AM. The primary swell is predicted to be 0.7m and 7s period. 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 2.3m 8s and forecast to arrive on Tuesday (Sep 15) at 4PM. Winds are predicted to be 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 09) at 10PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Wed 9th Sep) | 2.5ft (0.7m) 7s |
| Best Surf | 1AM (Sat 12th Sep) | 4.5ft (1.3m) 10s |
| Most Powerful | 4PM (Tue 15th Sep) | 7.5ft (2.3m) 8s |
Table - best surf conditions forecast for Little Austi and Main Beach over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s have a look at what’s coming up for Little Austi and Main Beach.
Honestly, I’m looking at a pretty bleak stretch for the next couple of weeks. There’s no real action to speak of for the first five days. The water’s sitting around average for the time of year, nothing wild there, but the swell is just not playing ball. We’ve got a run of tiny, weak waves, mostly under 1 foot, with a pathetic combined energy reading (62 or less) and a messy cross-onshore wind. Not worth paddling out for.
Thursday the 12th and Friday the 13th stay small and clean-ish, with a light cross-offshore breeze, but the swell is still practically non-existent. Saturday the 14th morning, there’s a little bump – 2 feet from the NE, period a short 6 seconds, and the wind is offshore from the NNW, making it clean. The energy is still low (50), but it’s surfable. You’d be scratching for waves, but it’s the first proper chance.
Monday the 16th is a write-off again. Then Tuesday the 17th afternoon, we get a surprise: a 6 feet swell from the NE, with a 6-second period and a clean cross-offshore wind from the WSW. The combined energy jumps to 293 (moderate). That’s the standout for the whole run – a bit of size, clean conditions, and some proper push. It’s not perfect, but it’s the best we’ll see. The 6 feet is pushing into the more challenging zone for beginners, but for intermediates and up, that’s a go.
The rest of the week after that gets messy again with onshore winds and dropping swell, so don’t sleep on that Tuesday afternoon window. It’s a long way out, but it’s the one to pencil in.
Rusty.
Short Range ForecastMostly dry. Very mild (max 17°C on Fri morning, min 9°C on Wed night). Winds decreasing (fresh winds from the S on Wed afternoon, calm by Fri afternoon). | Days 5-7 Weather SummaryMostly dry. Warm (max 26°C on Mon morning, min 11°C on Fri night). Wind will be generally light. | ||||||||||||||||||
Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | ||||||||||||||
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) | SE 7 | SE 7 | ESE 13 | ESE 11 | ESE 10 | ESE 9 | ENE 15 | ENE 15 | ENE 14 | SSE 10 | ENE 14 | ENE 14 | NE 4 | ENE 13 | NE 4 | NE 5 | NE 6 | NE 5 | NE 6 |
Wave Graph  | |||||||||||||||||||
 kJ | 67 | 50 | 17 | 41 | 19 | 17 | 21 | 22 | 19 | 342 | 19 | 19 | 18 | 17 | 43 | 41 | 33 | 58 | 54 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-on | cross-on | cross | cross-on | cross-on | cross-off | cross-on | on | cross-off | cross-off | cross | off | cross-off | cross-off | off | off | cross | cross |
High Tide | 6:46AM1.18m | 6:46PM1.62m | 7:28AM1.27m | 7:32PM1.61m | 8:08AM1.35m | 8:15PM1.56m | 8:46AM1.41m | 8:57PM1.46m | 9:23AM1.44m | 9:37PM1.35m | 9:59AM1.44m | 10:18PM1.22m | |||||||
Low Tide | 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 | 3:33PM0.18m | 3:42AM0.20m | 4:18PM0.23m | |||||||
 |  | |  | |  | | | | | | | | | | | | | | |
 | — | 6:05 | — | — | 6:03 | — | — | 6:01 | — | — | 6:01 | — | — | 5:58 | — | — | 5:58 | — | — |
 | — | — | 5:42 | — | — | 5:43 | — | — | 5:44 | — | — | 5:44 | — | — | 5:45 | — | — | 5:45 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 11 | 16 | 14 | 13 | 15 | 15 | 12 | 17 | 16 | 12 | 19 | 18 | 14 | 21 | 19 | 16 | 26 | 25 | 19 |
Feels °C | 9 | 11 | 6 | 5 | 10 | 11 | 10 | 14 | 14 | 11 | 16 | 14 | 13 | 16 | 14 | 14 | 22 | 23 | 17 |
Swell 1 Height (m) Direction Period (s) | S 9 | SE 7 | ESE 13 | ESE 11 | ESE 10 | S 21 | S 10 | S 10 | S 10 | SSE 10 | S 12 | S 10 | S 10 | S 10 | S 11 | NE 5 | S 11 | S 11 | NE 6 |
| kJ | 247 | 50 | 17 | 41 | 19 | 224 | 855 | 669 | 479 | 342 | 404 | 218 | 117 | 122 | 146 | 41 | 154 | 112 | 54 |
Swell 2 Height (m) Direction Period (s) | SE 7 | ENE 9 | ENE 9 | SSW 16 | S 23 | ESE 9 | ESE 9 | ENE 15 | ENE 14 | S 18 | S 19 | S 21 | S 19 | ENE 13 | ENE 13 | S 12 | NE 6 | ENE 13 | S 10 |
| kJ | 67 | 8 | 8 | 53 | 91 | 17 | 8 | 22 | 19 | 25 | 110 | 134 | 109 | 17 | 17 | 175 | 33 | 17 | 71 |
Swell 3 Height (m) Direction Period (s) | E 10 | E 15 | E 17 | NE 16 | E 16 | E 9 | ENE 15 | ENE 15 | E 10 | ENE 13 | ENE 14 | ENE 14 | ENE 13 | S 16 | ENE 13 | ENE 13 | ENE 13 | S 15 | ENE 12 |
| kJ | 8 | 4 | 6 | 10 | 5 | 2 | 21 | 22 | 2 | 18 | 19 | 19 | 16 | 21 | 35 | 17 | 17 | 4 | 15 |
Wind waves Height (m) Direction Period (s) | NW 2 | S 8 | S 8 | S 10 | S 9 | S 9 | — | — | — | — | — | ENE 3 | NE 4 | NE 4 | NE 4 | NE 6 | — | NE 5 | — |
| kJ | 1 | 165 | 1022 | 2508 | 1099 | 921 | — | — | — | — | — | 10 | 18 | 9 | 43 | 72 | — | 58 | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 34 | 819 | 13 | 34 | 50 | 2 | 7 | 34 | 0 | 8 | 92 | 1 | 1 | 104 | 0 | 0 | 8 | 1 |
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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