Surf Forecasts:
Little Austi and Main Beach surf forecast from 28 Aug 2026:
- Best quality surf: Saturday 29 Aug, 4AM (local time) - 4.5ft (1.3m), 9s period, SSE swell with cross-offshore winds.
- Most powerful swell: Saturday 29 Aug, 4AM (local time) - 4.5ft (1.3m), 9s period, SSE swell with 261 kJ wave energy.
- Next surfable swell (1★+): Saturday 29 Aug, 4AM (local time) - 4.5ft (1.3m), 9s 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 Saturday (Aug 29) at 4AM. The primary swell is predicted to be 1.3m and 9s period with a secondary swell of 0.4m and 8s. 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 1.3m 9s and forecast to arrive on Saturday (Aug 29) at 4AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 8s period and expected on Saturday (Aug 29) at 1PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Sat 29th Aug) | 4.5ft (1.3m) 9s |
| Best Surf | 4AM (Sat 29th Aug) | 4.5ft (1.3m) 9s |
| Most Powerful | 4AM (Sat 29th Aug) | 4.5ft (1.3m) 9s |
Table - best surf conditions forecast for Little Austi and Main Beach over the next 16 days.
The Lowdown
Imperial Units
Alright, let's talk about Little Austi and Main Beach. It's a beach and reef setup that breaks fairly regularly, but I gotta tell ya, the next couple weeks are a real rollercoaster.
First up, there’s a big dry spell. From now until Saturday the 6th of September, there’s barely a bump worth mentioning. Scores are all zeros or ones. The only glimmer is a glassy, clean 0.7m (2 ft) wave from the SE on the morning of Sunday the 30th of August, but it’s weak, with combined energy of just 126. It’s surfable but nothing to write home about. The rest is tiny, poor, and just not worth the effort. Winds are mostly clean or offshore, but with no swell, it’s a total bust.
Fast forward to the second week, and things get real. The first standout is Wednesday the 9th of September. We get a 2.2m (7 ft) swell from the SSE with a 10-second period. That’s a solid 914 combined energy – a real chunk of ocean moving. The morning brings a clean cross-offshore wind from the WSW at 15 mph. That’ll groom it up into some powerful, punchy waves. This is for the experienced surfers only; 2.2m (7 ft) is expert territory. It’ll be worth the paddle.
Thursday the 10th is a total scrub. The same 2.2m (7 ft) SSE swell gets torn up by strong, lumpy cross-shore and cross-onshore winds. The energy is still high (896 and 731), but the wind chops it all up. Leave it.
The absolute best of the lot is Friday the 11th of September morning. The swell drops a bit to 1.6m (5 ft) from the SSE, but the wind turns glassy offshore from the WNW at just 3 mph. Combined energy is a strong 551. The forecast says “expect very good surf conditions.” This is the one. Clean, lined-up waves with plenty of power. If you’ve got one session in you for this whole period, make it this one.
After that, the swell fades out through the weekend and into Monday, with more average, marginal conditions.
Water temp is about normal for this time of year, so no surprises there.
Signing off,
Rusty.
Short Range ForecastMostly dry. Warm (max 20°C on Mon morning, min 10°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 27°C on Thu morning, min 12°C on Mon night). Wind will be generally light. | ||||||||||||||||||
Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | ||||||||||||||
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) | SSE 9 | SSE 10 | SE 10 | SE 9 | SE 10 | SE 9 | ENE 8 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 11 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | SSE 9 | SSE 9 |
Wave Graph  | |||||||||||||||||||
 kJ | 261 | 246 | 216 | 123 | 96 | 40 | 14 | 17 | 16 | 15 | 15 | 37 | 34 | 34 | 34 | 33 | 18 | 29 | 28 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | on | cross-on | cross-off | glassy | on | cross-off | cross-off | cross | off | off | cross-off | off | off | cross-off | off | off | cross-off | cross-off |
High Tide | 8:51AM1.27m | 8:52PM1.50m | 9:26AM1.33m | 9:30PM1.43m | 10:03AM1.38m | 10:11PM1.34m | 10:43AM1.41m | 10:56PM1.23m | 11:28AM1.41m | 11:50PM1.11m | 12:22PM1.41m | 00:56AM1.01m | |||||||
Low Tide | 2:45AM0.11m | 2:40PM0.25m | 3:16AM0.11m | 3:22PM0.25m | 3:48AM0.13m | 4:08PM0.25m | 4:22AM0.18m | 4:58PM0.28m | 5:01AM0.25m | 5:55PM0.31m | 5:45AM0.32m | 7:04PM0.34m | |||||||
 |  | | | | | | | | | | |  |  | | | | | | |
 | — | 6:20 | — | — | 6:18 | — | — | 6:16 | — | — | 6:16 | — | — | 6:13 | — | — | 6:13 | — | — |
 | — | — | 5:35 | — | — | 5:35 | — | — | 5:36 | — | — | 5:37 | — | — | 5:37 | — | — | 5:37 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 16 | 16 | 12 | 17 | 16 | 12 | 20 | 18 | 14 | 25 | 23 | 17 | 26 | 26 | 19 | 27 | 25 | 16 |
Feels °C | 12 | 14 | 15 | 12 | 15 | 14 | 11 | 17 | 15 | 14 | 21 | 21 | 15 | 22 | 23 | 17 | 22 | 21 | 11 |
Swell 1 Height (m) Direction Period (s) | SSE 9 | SSE 10 | SE 10 | SE 9 | S 9 | S 9 | S 9 | S 8 | S 9 | S 9 | S 11 | S 11 | S 10 | S 10 | S 10 | S 10 | S 10 | NE 5 | SSE 9 |
| kJ | 261 | 246 | 216 | 123 | 157 | 155 | 194 | 122 | 134 | 173 | 233 | 189 | 131 | 94 | 70 | 50 | 47 | 9 | 28 |
Swell 2 Height (m) Direction Period (s) | ENE 8 | S 9 | S 8 | S 8 | SE 10 | SE 9 | S 17 | S 15 | ENE 9 | ENE 9 | ENE 9 | ENE 11 | NE 5 | NE 5 | ENE 10 | ENE 10 | ENE 10 | SSE 9 | SSE 12 |
| kJ | 25 | 180 | 129 | 88 | 96 | 40 | 148 | 157 | 16 | 15 | 15 | 37 | 23 | 10 | 34 | 33 | 18 | 29 | 28 |
Swell 3 Height (m) Direction Period (s) | S 10 | ENE 9 | ENE 8 | ENE 9 | ENE 9 | ENE 8 | ENE 8 | ENE 9 | S 16 | E 12 | ENE 11 | NE 12 | ENE 10 | ENE 10 | NE 5 | NE 5 | NE 5 | ENE 10 | ENE 10 |
| kJ | 34 | 30 | 28 | 31 | 30 | 24 | 14 | 17 | 47 | 3 | 12 | 6 | 34 | 34 | 7 | 4 | 4 | 18 | 19 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | ENE 3 | NE 3 | NNE 4 | NE 4 | NW 2 | NNW 3 | NNE 5 | NW 2 | NNW 3 | W 3 | SW 4 |
| kJ | — | — | — | — | — | — | — | — | 6 | 4 | 2 | 29 | 1 | 4 | 23 | 1 | 3 | 7 | 24 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 1 | 7 | 34 | 0 | 0 | 34 | 1 | 1 | 53 | 1 | 1 | 0 | 0 | 1 | 1 | 1 | 8 | 1 | 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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