Surf Forecasts:
Little Austi and Main Beach surf forecast from 26 Jul 2026:
- Best quality surf: Sunday 2 Aug, 1AM (local time) - 5ft (1.6m), 12s period, SSE swell with cross-offshore winds.
- Most powerful swell: Sunday 2 Aug, 1PM (local time) - 5.5ft (1.7m), 12s period, SE swell with 833 kJ wave energy.
- Next surfable swell (1★+): Saturday 1 Aug, 10PM (local time) - 5ft (1.6m), 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 01) at 10PM. The primary swell is predicted to be 1.6m and 9s 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 1.7m 12s and forecast to arrive on Sunday (Aug 02) at 1PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.0m 9s period and expected on Thursday (Jul 30) at 1AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Sat 1st Aug) | 5ft (1.6m) 9s |
| Best Surf | 1AM (Sun 2nd Aug) | 5ft (1.6m) 12s |
| Most Powerful | 1PM (Sun 2nd Aug) | 5.5ft (1.7m) 12s |
Table - best surf conditions forecast for Little Austi and Main Beach over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s break down what’s cooking at Little Austi and Main Beach. The first week or so is a bust, so don’t bother.
We don’t see anything worth mentioning until Saturday, 1 August. That morning brings 6ft swell from the SSE, but it’s cross-onshore and choppy, with combined energy at 581 – moderate but messy. Not a good call.
Sunday the 2nd is the real standout. The morning at Little Austi (Big Island) turns glassy with a light NNW breeze. We’ve got a clean 5ft groundswell from the SSE running on a long 12-second period. The combined energy is strong at 843. That long period might make it a bit straight at the beach, but the offshore wind cleans it up nicely. Crowds can show up here, so get out early. This is the one to aim for.
Monday the 3rd still has some fun waves – 4ft from the SE, period around 10 seconds, with a clean cross-offshore breeze from the NNW in the morning. Combined energy is 296. Not a standout, but a decent paddle.
Then it’s dead from Tuesday the 4th through Friday the 8th. Tiny waves or blown out. Stay home.
The second week gets bigger but rougher. Saturday the 8th afternoon brings a raw 8ft SSE swell with rain and onshore wind – combined energy 925, but ugly. Sunday the 9th has another 8ft SSE swell, longer 11-second period, and a huge 1180 combined energy, but it’s onshore with storm risk.
Monday the 10th is the big one – waves hitting 10ft to 12ft from the E and NE, periods up to 12 seconds. Combined energy is massive, from 2469 to 2976. But the wind is ripping at 19 mph from the ENE and NE, making it lumpy and cross-shore. Expert only, and honestly, it looks better for kite surfing.
Water temp is around 65°F, about a degree warmer than average. No big deal.
Bottom line: Sunday the 2nd of August is your best bet. Otherwise, the bigger stuff later on is powerful but messy.
Rusty.
Short Range ForecastMostly dry. Warm (max 20°C on Tue afternoon, min 9°C on Tue night). Winds increasing (calm on Sun afternoon, fresh winds from the W by Wed morning). | Days 5-7 Weather SummaryMostly dry. Very mild (max 15°C on Fri afternoon, min 6°C on Wed night). Winds decreasing (fresh winds from the WSW on Wed afternoon, light winds from the W by Thu night). | |||||||||||||||||||
Sun 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | ||||||||||||||
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 8 | SE 13 | SE 18 | SE 14 | NE 4 | SE 7 | SE 7 | SE 14 | SE 13 | SE 13 | NE 7 | NE 7 | S 11 | S 10 | S 10 | S 10 | NE 9 | SSE 9 | SSE 9 | SSE 12 |
Wave Graph  | ||||||||||||||||||||
 kJ | 2 | 7 | 12 | 8 | 11 | 8 | 7 | 8 | 7 | 7 | 7 | 2 | 0 | 0 | 0 | 0 | 3 | 499 | 424 | 674 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-off | glassy | cross | off | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross | cross-on | cross-off | cross-on | cross-on | cross | cross-on | on | cross-off |
High Tide | 6:11PM1.42m | 6:56AM0.95m | 6:53PM1.48m | 7:36AM0.99m | 7:32PM1.52m | 8:13AM1.04m | 8:08PM1.55m | 8:49AM1.08m | 8:44PM1.56m | 9:25AM1.12m | 9:19PM1.53m | 10:01AM1.17m | 9:54PM1.48m | |||||||
Low Tide | 1:07AM0.30m | 12:15PM0.43m | 1:45AM0.24m | 12:58PM0.40m | 2:20AM0.20m | 1:39PM0.36m | 2:54AM0.16m | 2:18PM0.34m | 3:26AM0.14m | 2:57PM0.34m | 3:57AM0.13m | 3:38PM0.35m | ||||||||
 |  |  | | | | | | | | | | | | | |  | | | | |
 | — | — | 6:54 | — | — | 6:52 | — | — | 6:52 | — | — | 6:50 | — | — | 6:50 | — | — | 6:50 | — | — |
 | 5:10 | — | — | 5:10 | — | — | 5:12 | — | — | 5:13 | — | — | 5:13 | — | — | 5:14 | — | — | 5:15 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 12 | 16 | 16 | 12 | 19 | 20 | 12 | 13 | 13 | 9 | 14 | 14 | 9 | 14 | 15 | 12 | 15 | 14 | 12 |
Feels °C | 14 | 10 | 14 | 13 | 10 | 15 | 17 | 8 | 5 | 5 | 3 | 8 | 9 | 5 | 8 | 9 | 7 | 11 | 11 | 11 |
Swell 1 Height (m) Direction Period (s) | S 10 | S 9 | S 9 | S 8 | S 8 | S 7 | S 9 | S 8 | NNE 4 | S 15 | S 10 | S 9 | S 11 | S 10 | S 10 | S 10 | SSE 9 | SSE 9 | SSE 9 | SSE 12 |
| kJ | 470 | 295 | 185 | 144 | 60 | 16 | 14 | 5 | 3 | 4 | 1019 | 839 | 1708 | 1319 | 910 | 904 | 612 | 499 | 424 | 674 |
Swell 2 Height (m) Direction Period (s) | NE 8 | NE 8 | NE 8 | SE 14 | NE 4 | NE 4 | SE 7 | NE 4 | S 17 | SE 13 | NE 7 | NE 7 | — | — | — | — | NE 9 | SE 13 | SE 12 | S 9 |
| kJ | 2 | 2 | 2 | 8 | 11 | 3 | 7 | 1 | 5 | 7 | 7 | 2 | — | — | — | — | 3 | 80 | 75 | 13 |
Swell 3 Height (m) Direction Period (s) | — | SE 13 | SE 18 | NE 8 | SE 16 | SE 7 | NNE 4 | SE 14 | SE 13 | NE 7 | — | — | — | — | — | — | — | NE 8 | S 15 | S 13 |
| kJ | — | 7 | 12 | 2 | 10 | 8 | 1 | 8 | 7 | 2 | — | — | — | — | — | — | — | 2 | 4 | 13 |
Wind waves Height (m) Direction Period (s) | — | — | — | NE 2 | NW 2 | NW 2 | N 4 | WNW 3 | W 3 | SW 5 | S 9 | S 9 | S 11 | — | S 10 | — | — | — | — | — |
| kJ | — | — | — | 1 | 1 | 1 | 2 | 3 | 7 | 71 | 1473 | 1187 | 2239 | — | 1155 | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 92 | 1 | 1 | 36 | 1 | 65 | 75 | 244 | 297 | 345 | 5 | 5 | 260 | 2 | 5 | 50 | 7 | 1 | 7 | 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.
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