Surf Forecasts:
Little Austi and Main Beach surf forecast from 16 Aug 2026:
- Best quality surf: Monday 17 Aug, 10PM (local time) - 3ft (0.9m), 7s period, ESE swell with glassy winds.
- Most powerful swell: Wednesday 19 Aug, 4PM (local time) - 3.5ft (1.1m), 10s period, ESE swell with 230 kJ wave energy.
- Next surfable swell (1★+): Monday 17 Aug, 10PM (local time) - 3ft (0.9m), 7s period with ESE 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 (Aug 17) at 10PM. The primary swell is predicted to be 0.9m and 7s 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 1.1m 10s and forecast to arrive on Wednesday (Aug 19) at 4PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 6s period and expected on Thursday (Aug 20) at 10PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Mon 17th Aug) | 3ft (0.9m) 7s |
| Best Surf | 10PM (Mon 17th Aug) | 3ft (0.9m) 7s |
| Most Powerful | 4PM (Wed 19th Aug) | 3.5ft (1.1m) 10s |
Table - best surf conditions forecast for Little Austi and Main Beach over the next 16 days.
The Lowdown
Alright, Rusty here again. Let’s call it like it is for Little Austi and Main Beach – the next 16 days are mostly a washout. The finder’s got nothing good, and the guidance backs that up. When a spot like this goes quiet for this long, it’s just one of those spells for the area. Nothing unusual.
Water temp is sitting around 64°F with a tiny 0.5°F anomaly, so pretty normal for this time of year.
First few days, 16th and 17th, you’ve got onshore winds from the SE with weak, short-period swell around 3 feet to 4 feet, period about 6 seconds. Combined energy is 88 – that’s weak. The 18th drops to 1 feet with a long 13-second period, but cross-on wind and only 121 energy. Still, it’s a longer period groundswell, but conditions are poor. Wednesday the 19th morning shows a little blink: 2 feet from ESE, period 10 secs, light cross-offshore wind from NNE, and clean. Energy hits 158 – moderate. Surfable, but barely. Not worth rushing for.
Then it’s a long stretch of nothing. From the 20th through the 31st, swell heights barely reach 3 feet on the best mornings, with energy dropping into the single digits (as low as 6 on the 30th). Winds are sometimes cross-off or offshore, but the swell is just too small and weak. Periods run 6–9 seconds – all short-period windswell. The 27th brings a bump to 5 feet from NE, but cross-on winds and chop make it a hard pass. Energy at 156, but quality is poor.
No standout days here. No big swell, no clean glassy windows, no proper groundswell with good direction. The break likes ENE swell, and some of that shows, but size and wind don’t cooperate. If you’re hoping for a wave, this isn’t your stretch. Keep watching – it usually doesn’t stay dead forever, and forecasts can turn.
Rusty.
Short Range ForecastModerate rain (total 12mm), heaviest on Mon morning. Very mild (max 18°C on Wed morning, min 12°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 4mm), mostly falling on Fri morning. Warm (max 21°C on Thu morning, min 12°C on Wed night). Wind will be generally light. | |||||||||||||||||||
Sun 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | ||||||||||||||
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) | SE 6 | ESE 6 | ESE 6 | ESE 7 | ESE 7 | E 6 | ESE 13 | ESE 11 | ESE 10 | ESE 10 | ESE 9 | ESE 6 | ENE 6 | ENE 6 | ENE 6 | NE 6 | ENE 6 | NE 6 | NE 6 | NE 6 |
Wave Graph  | ||||||||||||||||||||
 kJ | 88 | 65 | 78 | 83 | 83 | 81 | 60 | 100 | 82 | 230 | 90 | 36 | 67 | 77 | 49 | 39 | 26 | 19 | 19 | 10 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | glassy | cross | cross-on | off | cross-off | cross | off | cross-off | cross-off | cross-off | off | off | cross-off | cross-off | on | cross-on |
High Tide | 10:47PM1.35m | 11:24AM1.34m | 11:31PM1.20m | 12:07PM1.32m | 00:18AM1.05m | 12:56PM1.29m | 1:14AM0.93m | 1:51PM1.26m | 2:26AM0.86m | 2:55PM1.25m | 3:47AM0.84m | 4:00PM1.27m | ||||||||
Low Tide | 4:42PM0.28m | 5:04AM0.20m | 5:34PM0.35m | 5:39AM0.29m | 6:30PM0.42m | 6:15AM0.39m | 7:35PM0.47m | 6:58AM0.47m | 8:49PM0.50m | 7:53AM0.53m | 10:06PM0.48m | 9:01AM0.55m | 11:09PM0.43m | |||||||
 |  |  | | |  |  |  |  | |  | | |  | | | | | | | |
 | — | — | 6:33 | — | — | 6:33 | — | — | 6:31 | — | — | 6:31 | — | — | 6:30 | — | — | 6:28 | — | — |
 | 5:25 | — | — | 5:25 | — | — | 5:27 | — | — | 5:28 | — | — | 5:28 | — | — | 5:29 | — | — | 5:30 | — |
mm | — | 2 | 3 | 2 | 3 | 2 | — | — | — | — | — | — | — | 1 | 3 | — | — | — | — | 2 |
Temp °C | 16 | 14 | 14 | 14 | 14 | 15 | 16 | 14 | 18 | 17 | 13 | 21 | 19 | 17 | 13 | 13 | 13 | 17 | 16 | 14 |
Feels °C | 13 | 12 | 12 | 11 | 14 | 13 | 14 | 13 | 15 | 13 | 11 | 17 | 16 | 15 | 12 | 12 | 11 | 12 | 13 | 12 |
Swell 1 Height (m) Direction Period (s) | SE 6 | S 10 | ESE 6 | S 9 | ESE 7 | S 11 | SE 7 | ESE 7 | ESE 6 | ESE 10 | ESE 9 | ESE 6 | SE 7 | ENE 6 | ENE 6 | NE 6 | ENE 6 | NE 6 | S 6 | NE 6 |
| kJ | 88 | 175 | 78 | 74 | 83 | 56 | 46 | 71 | 57 | 230 | 90 | 36 | 23 | 77 | 49 | 39 | 26 | 19 | 3 | 10 |
Swell 2 Height (m) Direction Period (s) | S 11 | ENE 10 | S 9 | SSW 12 | S 8 | ESE 10 | S 11 | ESE 11 | ESE 10 | S 8 | NE 5 | NE 5 | E 10 | E 10 | S 11 | S 10 | S 10 | S 9 | S 8 | ENE 9 |
| kJ | 206 | 10 | 109 | 52 | 35 | 10 | 55 | 100 | 82 | 11 | 25 | 16 | 2 | 2 | 2 | 2 | 7 | 13 | 5 | 7 |
Swell 3 Height (m) Direction Period (s) | S 18 | S 17 | ENE 10 | ENE 10 | S 12 | ENE 9 | ESE 13 | S 10 | S 8 | — | S 8 | ESE 8 | S 13 | S 12 | — | — | SE 7 | SE 7 | S 11 | S 8 |
| kJ | 56 | 23 | 10 | 9 | 24 | 7 | 60 | 45 | 20 | — | 4 | 14 | 3 | 3 | — | — | 2 | 2 | 2 | 6 |
Wind waves Height (m) Direction Period (s) | — | ESE 6 | — | ESE 7 | — | E 6 | ENE 5 | NE 5 | ENE 5 | ENE 5 | NNE 5 | — | ENE 6 | WNW 2 | — | NNE 3 | — | — | NE 6 | — |
| kJ | — | 65 | — | 83 | — | 81 | 15 | 9 | 19 | 39 | 39 | — | 67 | 1 | — | 3 | — | — | 19 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 50 | 7 | 7 | 34 | 0 | 7 | 36 | 0 | 0 | 38 | 0 | 0 | 55 | 0 | 8 | 5 | 336 | 336 | 345 | 336 |
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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