Surf Forecasts:
Little Austi and Main Beach surf forecast from 20 Aug 2026:
- Best quality surf: Friday 21 Aug, 7AM (local time) - 3.5ft (1.0m), 6s period, ENE swell with cross-offshore winds.
- Most powerful swell: Wednesday 26 Aug, 4PM (local time) - 4ft (1.2m), 8s period, ENE swell with 179 kJ wave energy.
- Next surfable swell (1★+): Friday 21 Aug, 7AM (local time) - 3.5ft (1.0m), 6s period with ENE 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 (Aug 21) at 7AM. The primary swell is predicted to be 1.0m 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 1.2m 8s and forecast to arrive on Wednesday (Aug 26) 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 1.1m 11s period and expected on Sunday (Aug 23) at 7AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Fri 21st Aug) | 3.5ft (1.0m) 6s |
| Best Surf | 7AM (Fri 21st Aug) | 3.5ft (1.0m) 6s |
| Most Powerful | 4PM (Wed 26th Aug) | 4ft (1.2m) 8s |
Table - best surf conditions forecast for Little Austi and Main Beach over the next 16 days.
The Lowdown
Yo, Rusty here. Let’s talk about Little Austi and Main Beach. This is a beach and reef setup, exposed to the swell, and the optimum direction is from the east-northeast. It’s fairly consistent, but don’t get too excited just yet – we’re looking at a pretty flat and messy start to the run.
The first surf worth mentioning is on Friday the 21st of August. We’ve got small 3ft swell from the NE, with a short period of 6 seconds. It’s surfable, but conditions are very ordinary. The wave energy is weak (59), so it’s pretty gutless. The morning has a light offshore wind though, so it’ll be clean. By the afternoon, the wind goes glassy, which is nice for the tiny waves.
Then we hit a real dry spell. From Saturday the 22nd right through to Tuesday the 25th, it’s all poor surf conditions. The swell drops to almost nothing – 1ft – and the energy is barely registering (single digits to low 40s). Even when a bit of energy pops up on the 25th (101 in the morning, 147 in the afternoon), the waves are still just ordinary. Not worth paddling out for.
Wednesday the 26th of August brings a slight bump. The morning has 4ft swell from the NE, with period creeping up to 8 seconds and energy hitting 196. It’s clean with a light cross-offshore wind, but again, the forecast calls it “very ordinary.” It’s not bad, but it’s not good.
The rest of the week – Thursday 27th through Sunday the 30th – is a write-off. Strong southerly winds kick in, and the swell gets messy. On the 29th, we see 5ft swell but with 25 mph cross-onshore winds. It’s a washing machine. By Sunday the 30th, the swell hits 7ft to 8ft, but it’s onshore and the energy is strong (569 to 897), but it’s blown out. For a beach and reef setup, that’s more of a kite-surfing scene than paddle surfing.
Monday the 31st of August is still marginal. There’s 5ft to 6ft swell from the ENE with a 9-second period, but light cross-onshore winds keep things bumpy.
Now, here’s where it gets interesting. Tuesday the 1st of September is the standout. The morning is glassy – dead calm – with a clean 5ft swell from the ENE and a 9-second period. Wave energy is solid at 366. The forecast says “expect good surf conditions” and I can feel it. This is the best on offer. It’s not huge, but with glassy conditions and that ENE swell lining up with the optimum direction, the reef should hold some nice lines. Crowds are possible here, but it’s a mid-week morning, so you might score it quiet.
Wednesday the 2nd of September morning is also good. Another glassy start, 4ft swell from the E with a 9-second period and energy at 262. Clean conditions again. After that, the swell fades and the wind starts to mess things up, but that window of Tuesday and Wednesday mornings is the pick of the whole 16-day run.
After that, into the second week, the swell drops off significantly. Thursday the 3rd and Friday the 4th of September have small 3ft to 3ft swell from the E with longer periods of 10 to 11 seconds. The energy is moderate (111 to 236). The winds are light and offshore or glassy, so the waves will be clean but tiny. You might get a fun little longboard ripple on the reef. By Saturday the 5th of September, same story – tiny 3ft from the E with offshore winds.
Overall, don’t waste your time on the first week. It’s flat, then blown out. The real window is Tuesday and Wednesday mornings at the start of September. Glassy, clean, and with a bit of ENE groundswell. Get out there if you can.
Rusty.
Short Range ForecastMostly dry. Warm (max 22°C on Fri afternoon, min 11°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 6mm), mostly falling on Tue afternoon. Warm (max 23°C on Tue morning, min 12°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | |||||||||||||||
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 6 | ENE 6 | NE 6 | NE 6 | NE 6 | NE 6 | ENE 6 | ENE 6 | NE 9 | NE 6 | NE 6 | ENE 6 | ENE 7 | NE 6 | NE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 |
Wave Graph | |||||||||||||||||||||
71 | 69 | 23 | 9 | 5 | 6 | 22 | 15 | 20 | 47 | 97 | 65 | 93 | 83 | 102 | 162 | 179 | 133 | 114 | 100 | 120 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | cross-off | cross-off | glassy | cross-off | cross-off | cross-off | off | cross-off | cross | off | cross-off | cross-off | off | cross | cross-on | cross | cross-on | cross-on | cross-off |
High Tide | 2:55PM1.25m | 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 | ||||||||
6:30 | — | — | 6:28 | — | — | 6:26 | — | — | 6:26 | — | — | 6:24 | — | — | 6:22 | — | — | 6:22 | — | — | |
— | 5:29 | — | — | 5:30 | — | — | 5:30 | — | — | 5:30 | — | — | 5:31 | — | — | 5:32 | — | — | 5:32 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 1 | 2 | — | 1 | — | — | — |
Temp °C | 21 | 22 | 15 | 20 | 20 | 14 | 16 | 15 | 14 | 20 | 19 | 16 | 23 | 18 | 16 | 16 | 14 | 13 | 15 | 16 | 12 |
Feels °C | 19 | 20 | 12 | 17 | 18 | 14 | 14 | 13 | 13 | 17 | 16 | 15 | 19 | 16 | 15 | 14 | 10 | 9 | 10 | 10 | 8 |
Swell 1 Height (m) Direction Period (s) | ENE 6 | S 10 | NE 6 | NE 6 | S 8 | SSW 11 | S 9 | S 8 | S 10 | NE 6 | S 10 | ENE 6 | ENE 7 | NE 6 | NE 7 | ENE 8 | ENE 8 | ENE 8 | S 7 | S 7 | ENE 8 |
71 | 2 | 23 | 9 | 12 | 41 | 153 | 99 | 192 | 47 | 98 | 65 | 93 | 83 | 102 | 162 | 179 | 133 | 121 | 97 | 120 | |
Swell 2 Height (m) Direction Period (s) | S 11 | E 9 | S 10 | S 8 | NE 6 | SSE 4 | ESE 4 | S 12 | NE 9 | S 10 | S 17 | S 10 | S 9 | S 9 | ENE 8 | S 11 | S 11 | S 6 | ENE 8 | ENE 8 | SSE 7 |
2 | 2 | 2 | 13 | 5 | 3 | 4 | 141 | 20 | 118 | 23 | 64 | 58 | 39 | 64 | 20 | 20 | 56 | 114 | 100 | 37 | |
Swell 3 Height (m) Direction Period (s) | — | SE 9 | E 9 | SSW 5 | SSW 5 | NE 6 | NE 6 | ENE 9 | E 14 | ENE 8 | S 15 | ENE 9 | NE 10 | NE 9 | S 8 | S 15 | S 14 | S 10 | S 14 | S 13 | S 7 |
— | 3 | 2 | 3 | 5 | 6 | 9 | 8 | 4 | 7 | 4 | 8 | 24 | 23 | 22 | 18 | 16 | 8 | 15 | 31 | 25 | |
Wind waves Height (m) Direction Period (s) | — | ENE 6 | W 3 | W 3 | — | — | ENE 6 | ENE 6 | NE 4 | — | NE 6 | — | — | — | NW 3 | SW 2 | S 4 | — | — | — | NNE 2 |
— | 69 | 5 | 2 | — | — | 22 | 15 | 17 | — | 97 | — | — | — | 2 | 1 | 15 | — | — | — | 1 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 159 | 336 | 330 | 1 | 1 | 8 | 1 | 0 | 212 | 0 | 92 | 8 | 0 | 1 | 13 | 7 | 278 | 50 | 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.











