Surf Forecasts:
Little Austi and Main Beach surf forecast from 15 Aug 2026:
- Best quality surf: Tuesday 18 Aug, 10PM (local time) - 2ft (0.6m), 12s period, ESE swell with cross-offshore winds.
- Most powerful swell: Wednesday 19 Aug, 10PM (local time) - 4ft (1.2m), 9s period, E swell with 235 kJ wave energy.
- Next surfable swell (1★+): Tuesday 18 Aug, 10PM (local time) - 2ft (0.6m), 12s 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 Tuesday (Aug 18) at 10PM. The primary swell is predicted to be 0.6m and 12s period with a secondary swell of 0.9m and 7s. 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 9s and forecast to arrive on Wednesday (Aug 19) at 10PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.2m 8s period and expected on Saturday (Aug 22) at 4PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Tue 18th Aug) | 2ft (0.6m) 12s |
| Best Surf | 10PM (Tue 18th Aug) | 2ft (0.6m) 12s |
| Most Powerful | 10PM (Wed 19th Aug) | 4ft (1.2m) 9s |
Table - best surf conditions forecast for Little Austi and Main Beach over the next 16 days.
The Lowdown
Hey, Rusty here. Alright, fair warning – there’s a long stretch of flat, messy surf before things get real at Little Austi and Main Beach. For the first week and a half, it’s pretty grim.
Starting Saturday the 15th, we’ve got a tiny 1ft swell from the ENE with a cross-onshore wind, choppy and not worth paddling out. Sunday the 16th, the swell bumps up to about 5ft from the SE, but it’s onshore wind and a short 6-second period – just junk. Monday the 17th and Tuesday the 18th are more of the same, small waves with onshore flow. Wednesday the 19th offers a little hope in the morning – swell is only 4ft from the ESE, but the wind goes glassy. It’s surfable but nothing special. Thursday the 20th is clean with cross-offshore wind and a small 4ft swell from the E, but still not exciting. Friday the 21st through Monday the 24th is mostly flat and clean but tiny, with swells under 3ft. Not happening.
Now, the real change comes Wednesday the 26th of August. The swell jumps to 8ft from the E with an 8-second period, combined wave energy is a strong 912, and the wind is clean cross-offshore from the NNE. That’s expert-level size – over 8ft is for the experienced crew only. Thursday the 27th gets even bigger: 10ft from the E in the morning (energy 1963 – very strong) with cross-off wind, then 8ft from the ENE in the afternoon with clean cross-off wind. The optimum swell direction for this spot is ENE, so that afternoon session on Thursday is lined up perfectly. The crowd factor here is “sometimes,” so you might see a few others in the water.
The standout day is Friday the 28th of August. The morning brings a clean 8ft swell from the ENE with offshore wind from the NNW, wave energy at 673. The afternoon holds the same 8ft from the ENE with offshore wind from the WNW. The wind is off, the swell direction is right, and the energy is pumping. Saturday the 29th is still solid at 8ft from the NE with offshore wind (energy 795). After that, it drops off quick.
So, hang tight through the dry spell – that last week of August is where it’s at. Big, clean, and for the brave ones.
Rusty
Short Range ForecastLight rain (total 9mm), mostly falling on Sat night. Very mild (max 15°C on Sat morning, min 11°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummarySome drizzle, heaviest during Thu afternoon. Warm (max 21°C on Thu morning, min 11°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | |||||||||||||||
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 9 | ENE 10 | ENE 10 | SE 6 | ESE 6 | ESE 6 | ESE 7 | ESE 7 | ESE 6 | ESE 7 | ESE 7 | ESE 12 | ESE 6 | ESE 7 | E 9 | ESE 6 | E 6 | ENE 6 | ENE 6 | NE 6 | ENE 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 17 | 18 | 19 | 139 | 61 | 60 | 93 | 68 | 80 | 68 | 71 | 106 | 113 | 83 | 230 | 70 | 100 | 77 | 39 | 42 | 12 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | on | on | on | on | on | on | on | cross-on | glassy | glassy | cross-off | off | cross-off | cross-off | glassy | cross-off | off | cross-off |
High Tide | 10:01AM1.32m | 10:04PM1.51m | 10:42AM1.34m | 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 | |||||||
Low Tide | 3:52PM0.23m | 4:29AM0.10m | 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 | ||||||||
 |  |  |  |  |  | | | | | | | | |  | | | | | | | |
 | 6:35 | — | — | 6:35 | — | — | 6:33 | — | — | 6:33 | — | — | 6:31 | — | — | 6:31 | — | — | 6:30 | — | — |
 | — | 5:24 | — | — | 5:25 | — | — | 5:25 | — | — | 5:27 | — | — | 5:28 | — | — | 5:28 | — | — | 5:29 | — |
mm | 2 | — | 3 | 1 | — | — | — | 1 | 2 | — | — | — | — | — | — | — | 1 | — | 1 | — | — |
Temp °C | 15 | 15 | 13 | 15 | 15 | 14 | 15 | 15 | 14 | 17 | 16 | 14 | 14 | 16 | 13 | 21 | 19 | 15 | 13 | 15 | 13 |
Feels °C | 12 | 11 | 10 | 12 | 11 | 11 | 11 | 12 | 12 | 15 | 14 | 12 | 13 | 14 | 12 | 17 | 17 | 14 | 11 | 12 | 9 |
Swell 1 Height (m) Direction Period (s) | ENE 9 | S 18 | S 8 | S 8 | S 11 | ESE 6 | S 9 | S 9 | S 8 | ESE 7 | ESE 7 | ESE 7 | ESE 10 | ESE 10 | E 9 | ESE 6 | — | ENE 6 | ENE 6 | NE 6 | ENE 6 |
| kJ | 17 | 60 | 35 | 42 | 206 | 60 | 109 | 74 | 35 | 68 | 53 | 82 | 83 | 75 | 230 | 70 | — | 77 | 39 | 42 | 12 |
Swell 2 Height (m) Direction Period (s) | S 19 | ENE 10 | S 18 | S 6 | SSE 6 | S 10 | ENE 10 | ENE 10 | S 12 | S 11 | S 11 | ESE 12 | E 10 | E 11 | — | E 11 | — | E 10 | S 12 | S 11 | NE 5 |
| kJ | 66 | 18 | 96 | 28 | 47 | 172 | 10 | 19 | 24 | 56 | 55 | 106 | 2 | 9 | — | 2 | — | 2 | 3 | 2 | 7 |
Swell 3 Height (m) Direction Period (s) | SE 8 | SE 8 | ENE 10 | S 18 | S 18 | S 17 | ENE 10 | ENE 10 | SE 10 | ESE 10 | ESE 14 | S 10 | S 16 | S 15 | S 14 | — | — | S 13 | E 10 | E 10 | NE 8 |
| kJ | 3 | 3 | 19 | 96 | 56 | 23 | 10 | 9 | 16 | 10 | 71 | 46 | 5 | 4 | 4 | — | — | 3 | 2 | 2 | 3 |
Wind waves Height (m) Direction Period (s) | S 8 | S 7 | S 7 | SE 6 | ESE 6 | — | ESE 7 | ESE 7 | ESE 6 | — | — | — | ESE 6 | ESE 7 | NNE 5 | NNW 2 | E 6 | — | NW 3 | NW 3 | W 3 |
| kJ | 324 | 279 | 104 | 139 | 61 | — | 93 | 68 | 80 | — | — | — | 113 | 83 | 27 | 1 | 100 | — | 4 | 2 | 8 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 41 | 76 | 1 | 13 | 50 | 34 | 7 | 13 | 92 | 13 | 100 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 8 | 8 | 260 |
Best forecast wave conditions in Illawarra | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
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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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